(for PR #29582)

2026-03-25 13:14.48: New job: test errpy.0.0.9 with ocaml-compiler.5.4.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29582/head (fa5fb3a6a806e832e4c7791145889a6bbe8b64ef)
                              on debian-13-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29582/head" && git reset --hard fa5fb3a6
git fetch origin master
git merge --no-edit 2f93e9d4614d6376ed929fc2cee7c59cb9d5833b
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:bd342cbd7766c453282fdafbc2e565ae3361320ec344722cf4372b782e4a97f6
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ocaml-compiler.5.4.0 5.4.0
RUN opam reinstall --update-invariant ocaml-compiler.5.4.0; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'ocaml-compiler.5.4.0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN opam reinstall errpy.0.0.9; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'errpy.0.0.9' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test errpy.0.0.9) || true
RUN opam reinstall --with-test --verbose errpy.0.0.9; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'errpy.0.0.9' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1

END-OF-DOCKERFILE
docker build -f ../Dockerfile .

2026-03-25 13:14.48: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:bd342cbd7766c453282fdafbc2e565ae3361320ec344722cf4372b782e4a97f6-ocaml-compiler.5.4.0-errpy.0.0.9-fa5fb3a6a806e832e4c7791145889a6bbe8b64ef"
2026-03-25 13:14.48: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:bd342cbd7766c453282fdafbc2e565ae3361320ec344722cf4372b782e4a97f6)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
 (run (network host)
      (shell "opam init --reinit --config .opamrc-sandbox -ni"))
 (run (shell "opam option solver=builtin-0install && opam config report"))
 (env OPAMDOWNLOADJOBS 1)
 (env OPAMERRLOGLEN 0)
 (env OPAMPRECISETRACKING 1)
 (env CI true)
 (env OPAM_REPO_CI true)
 (run (shell "rm -rf opam-repository/"))
 (copy (src .) (dst opam-repository/))
 (run (shell "opam repository set-url --strict default opam-repository/"))
 (run (network host)
      (shell "opam update --depexts || true"))
 (run (shell "opam pin add -k version -yn ocaml-compiler.5.4.0 5.4.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall --update-invariant ocaml-compiler.5.4.0;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'ocaml-compiler.5.4.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall errpy.0.0.9;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'errpy.0.0.9' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test errpy.0.0.9) || true"))
 (run (shell  "opam reinstall --with-test --verbose errpy.0.0.9;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'errpy.0.0.9' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-25 13:14.48: Waiting for resource in pool OCluster
2026-03-25 19:20.37: Waiting for worker…
2026-03-25 19:24.42: Got resource from pool OCluster
Building on laodoke.caelum.ci.dev
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HEAD is now at 2f93e9d461 Merge pull request #29592 from dinosaure/release-miou-v0.5.5
Merge made by the 'ort' strategy.
 packages/ocaml-compiler/ocaml-compiler.5.3.0/opam      |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.3/opam        |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.4.0/opam      |  5 ++++-
 .../ocaml-compiler/ocaml-compiler.5.4.0~alpha1/opam    |  5 ++++-
 .../ocaml-compiler/ocaml-compiler.5.4.0~beta1/opam     |  5 ++++-
 .../ocaml-compiler/ocaml-compiler.5.4.0~beta2/opam     |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.4.0~rc1/opam  |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.4.1/opam      |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.4/opam        |  5 ++++-
 .../ocaml-compiler/ocaml-compiler.5.5.0~alpha1/opam    |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.5/opam        |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.6/opam        |  5 ++++-
 packages/ocaml-option-llvm/ocaml-option-llvm.1/opam    | 18 ++++++++++++++++++
 .../ocaml-options-vanilla/ocaml-options-vanilla.1/opam |  1 +
 packages/ocaml-variants/ocaml-variants.5.2.0+msvc/opam |  2 ++
 15 files changed, 69 insertions(+), 12 deletions(-)
 create mode 100644 packages/ocaml-option-llvm/ocaml-option-llvm.1/opam

(from ocaml/opam:debian-13-ocaml-5.4@sha256:bd342cbd7766c453282fdafbc2e565ae3361320ec344722cf4372b782e4a97f6)
Unable to find image 'ocaml/opam:debian-13-ocaml-5.4@sha256:bd342cbd7766c453282fdafbc2e565ae3361320ec344722cf4372b782e4a97f6' locally
docker.io/ocaml/opam@sha256:bd342cbd7766c453282fdafbc2e565ae3361320ec344722cf4372b782e4a97f6: Pulling from ocaml/opam
866771c43bf5: Already exists
1e49bea09367: Already exists
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b40777a84cca: Verifying Checksum
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46df05d0db83: Verifying Checksum
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b4d63fa01ada: Pull complete
Digest: sha256:bd342cbd7766c453282fdafbc2e565ae3361320ec344722cf4372b782e4a97f6
Status: Downloaded newer image for ocaml/opam@sha256:bd342cbd7766c453282fdafbc2e565ae3361320ec344722cf4372b782e4a97f6
2026-03-25 19:24.59 ---> using "41eea30e3f639c18d8cf57c309ec76919ec7b2398036f7e41744cbce59a133d3" from cache

/: (user (uid 1000) (gid 1000))

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-25 19:24.59 ---> using "4ad7f430d684c40cedc651267e0edf890c044fe4e624255de377c471b4526bac" from cache

/home/opam: (run (network host)
                 (shell "opam init --reinit --config .opamrc-sandbox -ni"))
Configuring from /home/opam/.opamrc-sandbox, then /home/opam/.opamrc, and finally from built-in defaults.
Checking for available remotes: rsync and local, git.
  - you won't be able to use mercurial repositories unless you install the hg command on your system.
  - you won't be able to use darcs repositories unless you install the darcs command on your system.

This version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted.
You may want to back it up before going further.

Continue? [Y/n] y
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-03-25 19:24.59 ---> using "71fa58e52457bf6a7eac317c6a6ef1e2bdf53e533a1e4fd04b90c9349347e038" from cache

/home/opam: (run (shell "opam option solver=builtin-0install && opam config report"))
Set to 'builtin-0install' the field solver in global configuration
# opam config report
# opam-version         2.5.0
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       5.4
# invariant            ["ocaml-base-compiler" {= "5.4.0"}]
# compiler-packages    ocaml-base-compiler.5.4.0, ocaml-compiler.5.4.0, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.4/lib/ocaml/stublibs:/home/opam/.opam/5.4/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.0
2026-03-25 19:24.59 ---> using "ed86081cb38ca125a920162bfe6a4bb7b1c27c6973c917551687c83cf44dbfdf" from cache

/home/opam: (env OPAMDOWNLOADJOBS 1)

/home/opam: (env OPAMERRLOGLEN 0)

/home/opam: (env OPAMPRECISETRACKING 1)

/home/opam: (env CI true)

/home/opam: (env OPAM_REPO_CI true)

/home/opam: (run (shell "rm -rf opam-repository/"))
2026-03-25 19:24.59 ---> using "04a48515eea40c32b96da0c71328b4bba0edb66eed83d4f78554b39097cf1f25" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-25 19:25.01 ---> using "034191995d824300f355cbba1072d6e5fe6d815701f24eb84d82c75009d73829" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-25 19:25.01 ---> using "8232259ea36ea8848dc29ae49703acf145fd27b40f3ebd8fb785db7f8da1b9d4" from cache

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian trixie InRelease [140 kB]
- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]
- Get:4 http://deb.debian.org/debian trixie/main amd64 Packages [9671 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [114 kB]
- Fetched 10.0 MB in 2s (6318 kB/s)
- Reading package lists...
- 
2026-03-25 19:25.01 ---> using "a75782a571df4fc8f8933e94c681af881015ee87cdd4c652f8ae9af1d8cfad37" from cache

/home/opam: (run (shell "opam pin add -k version -yn ocaml-compiler.5.4.0 5.4.0"))
ocaml-compiler is now pinned to version 5.4.0
2026-03-25 19:25.01 ---> using "60e129f7398974b5fa5afc8f56ec09bd24a9182f5e9834464bfc959db1aa6b14" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall --update-invariant ocaml-compiler.5.4.0;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'ocaml-compiler.5.4.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
The following actions will be performed:
=== recompile 8 packages
  - recompile base-domains        base           [uses ocaml]
  - recompile base-effects        base           [uses ocaml]
  - recompile base-nnp            base           [uses base-domains]
  - recompile ocaml               5.4.0          [uses ocaml-base-compiler]
  - recompile ocaml-base-compiler 5.4.0 (pinned) [uses ocaml-compiler]
  - recompile ocaml-compiler      5.4.0 (pinned)
  - recompile ocaml-config        3              [uses ocaml-base-compiler]
  - recompile opam-depext         1.2.3          [uses ocaml]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved ocaml-compiler.5.4.0  (cached)
-> retrieved ocaml-config.3  (cached)
-> retrieved opam-depext.1.2.3  (cached)
-> removed   base-effects.base
-> removed   base-nnp.base
-> removed   base-domains.base
-> removed   opam-depext.1.2.3
-> removed   ocaml.5.4.0
-> removed   ocaml-config.3
-> removed   ocaml-base-compiler.5.4.0
-> removed   ocaml-compiler.5.4.0
-> installed ocaml-compiler.5.4.0
-> installed ocaml-base-compiler.5.4.0
-> installed ocaml-config.3
-> installed ocaml.5.4.0
-> installed base-domains.base
-> installed base-effects.base
-> installed base-nnp.base
-> installed opam-depext.1.2.3
Done.

<><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
=> opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
# To update the current shell environment, run: eval $(opam env)
2026-03-25 19:25.01 ---> using "efbc92fc0c607605c8bb33f9e4c8fe340a48c67e14d2f61592db8a4edc5c0b15" from cache

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall errpy.0.0.9;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'errpy.0.0.9' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
errpy.0.0.9 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 11 packages
  - install conf-rust-2021      1       [required by errpy]
  - install cppo                1.8.0   [required by ppx_deriving]
  - install dune                3.22.0  [required by errpy]
  - install errpy               0.0.9
  - install ocaml-compiler-libs v0.17.0 [required by ppxlib]
  - install ocamlfind           1.9.8   [required by ppx_deriving]
  - install ppx_derivers        1.2.1   [required by ppx_deriving]
  - install ppx_deriving        6.1.1   [required by errpy]
  - install ppxlib              0.37.0  [required by ppx_deriving]
  - install sexplib0            v0.17.0 [required by ppxlib]
  - install stdlib-shims        0.3.0   [required by ppxlib]

The following system packages will first need to be installed:
    cargo

<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>

opam believes some required external dependencies are missing. opam can:
> 1. Run apt-get to install them (may need root/sudo access)
  2. Display the recommended apt-get command and wait while you run it manually (e.g. in another terminal)
  3. Continue anyway, and, upon success, permanently register that this external dependency is present, but not detectable
  4. Abort the installation

[1/2/3/4] 1

+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "cargo"
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- Unpacking llvm-19-tools (1:19.1.7-3+b1) ...
- Selecting previously unselected package llvm-19-dev.
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- Selecting previously unselected package rust-llvm.
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- Unpacking rust-llvm (1.85.0+dfsg3-1) ...
- Setting up media-types (13.0.0) ...
- Setting up libpipeline1:amd64 (1.5.8-1) ...
- Setting up libclang-common-19-dev:amd64 (1:19.1.7-3+b1) ...
- Setting up libyaml-0-2:amd64 (0.2.5-2) ...
- Setting up libffi-dev:amd64 (3.4.8-2) ...
- Setting up libz3-4:amd64 (4.13.3-1) ...
- Setting up libpfm4:amd64 (4.13.0+git99-gc5587f9-1) ...
- Setting up libncurses6:amd64 (6.5+20250216-2) ...
- Setting up binfmt-support (2.2.2-7) ...
- invoke-rc.d: could not determine current runlevel
- invoke-rc.d: policy-rc.d denied execution of start.
- Setting up libgc1:amd64 (1:8.2.8-1) ...
- Setting up libc6-i386 (2.41-12+deb13u2) ...
- Setting up libmbedcrypto16:amd64 (3.6.5-0.1~deb13u1) ...
- Setting up libc-dev-bin (2.41-12+deb13u2) ...
- Setting up readline-common (8.2-6) ...
- Setting up libxml2:amd64 (2.12.7+dfsg+really2.9.14-2.1+deb13u2) ...
- Setting up libhttp-parser2.9:amd64 (2.9.4-6+b2) ...
- Setting up libllvm19:amd64 (1:19.1.7-3+b1) ...
- Setting up libz3-dev:amd64 (4.13.3-1) ...
- Setting up libclang1-19 (1:19.1.7-3+b1) ...
- Setting up libobjc4:amd64 (14.2.0-19) ...
- Setting up libobjc-14-dev:amd64 (14.2.0-19) ...
- Setting up libxml2-dev:amd64 (2.12.7+dfsg+really2.9.14-2.1+deb13u2) ...
- Setting up libmbedx509-7:amd64 (3.6.5-0.1~deb13u1) ...
- Setting up lib32gcc-s1 (14.2.0-19) ...
- Setting up lib32stdc++6 (14.2.0-19) ...
- Setting up libmbedtls21:amd64 (3.6.5-0.1~deb13u1) ...
- Setting up libreadline8t64:amd64 (8.2-6) ...
- Setting up libclang-rt-19-dev:amd64 (1:19.1.7-3+b1) ...
- Setting up libstd-rust-1.85:amd64 (1.85.0+dfsg3-1) ...
- Setting up libc6-dev:amd64 (2.41-12+deb13u2) ...
- Setting up llvm-19-linker-tools (1:19.1.7-3+b1) ...
- Setting up llvm-19-runtime (1:19.1.7-3+b1) ...
- Setting up lld-19 (1:19.1.7-3+b1) ...
- Setting up libpython3.13-stdlib:amd64 (3.13.5-2) ...
- Setting up libpython3-stdlib:amd64 (3.13.5-1) ...
- Setting up libclang-cpp19 (1:19.1.7-3+b1) ...
- Setting up libncurses-dev:amd64 (6.5+20250216-2) ...
- Setting up python3.13 (3.13.5-2) ...
- Setting up python3 (3.13.5-1) ...
- running python rtupdate hooks for python3.13...
- running python post-rtupdate hooks for python3.13...
- Setting up clang-19 (1:19.1.7-3+b1) ...
- Setting up clang-tools-19 (1:19.1.7-3+b1) ...
- Setting up libstd-rust-dev:amd64 (1.85.0+dfsg3-1) ...
- Setting up python3-pygments (2.18.0+dfsg-2) ...
- Setting up libgit2-1.9:amd64 (1.9.0+ds-2) ...
- Setting up rustc (1.85.0+dfsg3-1) ...
- Setting up llvm-19 (1:19.1.7-3+b1) ...
- Setting up rust-llvm (1.85.0+dfsg3-1) ...
- Setting up python3-yaml (6.0.2-1+b2) ...
- Setting up cargo (1.85.0+dfsg3-1) ...
- Setting up llvm-19-tools (1:19.1.7-3+b1) ...
- Setting up llvm-19-dev (1:19.1.7-3+b1) ...
- Processing triggers for libc-bin (2.41-12+deb13u2) ...
- Processing triggers for base-files (13.8+deb13u3) ...

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved conf-rust-2021.1  (cached)
-> retrieved cppo.1.8.0  (cached)
-> installed conf-rust-2021.1
-> retrieved dune.3.22.0  (cached)
-> retrieved errpy.0.0.9  (cached)
-> retrieved ocaml-compiler-libs.v0.17.0  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppx_deriving.6.1.1  (cached)
-> retrieved ppxlib.0.37.0  (cached)
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> installed ocamlfind.1.9.8
-> installed dune.3.22.0
-> installed ppx_derivers.1.2.1
-> installed stdlib-shims.0.3.0
-> installed sexplib0.v0.17.0
-> installed cppo.1.8.0
-> installed ocaml-compiler-libs.v0.17.0
-> installed ppxlib.0.37.0
-> installed ppx_deriving.6.1.1
-> installed errpy.0.0.9
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-25 19:36.34 ---> saved as "ee0ada4bf6da7d9fb8080bbb4ca411b630b1bdf4ddba662ea45e4689a36876f9"

/home/opam: (run (network host)
                 (shell "(opam reinstall --with-test errpy.0.0.9) || true"))
The following actions will be performed:
=== recompile 1 package
  - recompile errpy  0.0.9
=== install 2 packages
  - install   ounit2 2.2.7 [required by errpy]
  - install   seq    base  [required by ounit2]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved errpy.0.0.9  (https://opam.ocaml.org/cache)
-> retrieved ounit2.2.2.7  (https://opam.ocaml.org/cache)
-> retrieved seq.base  (2 extra sources)
-> retrieved seq.base  (2 extra sources)
-> removed   errpy.0.0.9
-> installed seq.base
-> installed ounit2.2.2.7
-> installed errpy.0.0.9
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-25 19:38.24 ---> saved as "e0411e36cee8f74f6c9c53336d3edffc6698d500b3c971f01c4fe9d211427ad1"

/home/opam: (run (shell  "opam reinstall --with-test --verbose errpy.0.0.9;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'errpy.0.0.9' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
The following actions will be performed:
=== recompile 1 package
  - recompile errpy 0.0.9

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  1/4: [errpy.0.0.9: extract]
-> retrieved errpy.0.0.9  (cached)
Processing  2/4: [errpy: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "errpy" "-j" "71" "@install" "@runtest" (CWD=/home/opam/.opam/5.4/.opam-switch/build/errpy.0.0.9)
- (cd _build/default && /home/opam/.opam/5.4/bin/ocamlopt.opt -w -40 -w A-30 -O3 -I tests/.test_ffi_ocaml.eobjs/byte -I tests/.test_ffi_ocaml.eobjs/native -I /home/opam/.opam/5.4/lib/ocaml/unix -I /home/opam/.opam/5.4/lib/ounit2 -I /home/opam/.opam/5.4/lib/ounit2/advanced -I /home/opam/.opam/5.4/lib/ppx_deriving/runtime -I /home/opam/.opam/5.4/lib/seq -I /home/opam/.opam/5.4/lib/stdlib-shims -I .errpy.objs/byte -I .errpy.objs/native -I vendor/ocaml/interop/ocamlrep_ocamlpool/.ocamlpool.objs/byte -I vendor/ocaml/interop/ocamlrep_ocamlpool/.ocamlpool.objs/native -cmi-file tests/.test_ffi_ocaml.eobjs/byte/dune__exe__Test_ffi_ocaml.cmi -no-alias-deps -o tests/.test_ffi_ocaml.eobjs/native/dune__exe__Test_ffi_ocaml.cmx -c -impl tests/test_ffi_ocaml.ml)
- File "tests/test_ffi_ocaml.ml", line 35, characters 12-20:
- 35 |             Ast.desc =
-                  ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 58, characters 12-18:
- 58 |             lineno = 1;
-                  ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 59, characters 12-22:
- 59 |             col_offset = 0;
-                  ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 60, characters 12-22:
- 60 |             end_lineno = Some 1;
-                  ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 61, characters 12-26:
- 61 |             end_col_offset = Some 3;
-                  ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 41, characters 24-32:
- 41 |                         Ast.desc = Ast.Name { id = "a"; ctx = Ast.Store };
-                              ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 42, characters 24-30:
- 42 |                         lineno = 1;
-                              ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 43, characters 24-34:
- 43 |                         col_offset = 0;
-                              ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 44, characters 24-34:
- 44 |                         end_lineno = Some 1;
-                              ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 45, characters 24-38:
- 45 |                         end_col_offset = Some 1;
-                              ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 50, characters 22-30:
- 50 |                       Ast.desc = Ast.Constant { value = Some (Ast.Num (Ast.Int 8)); kind = None };
-                            ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 51, characters 22-28:
- 51 |                       lineno = 1;
-                            ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 52, characters 22-32:
- 52 |                       col_offset = 2;
-                            ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 53, characters 22-32:
- 53 |                       end_lineno = Some 1;
-                            ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 54, characters 22-36:
- 54 |                       end_col_offset = Some 3;
-                            ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 76, characters 12-20:
- 76 |             Ast.desc =
-                  ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 141, characters 12-18:
- 141 |             lineno = 1;
-                   ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 142, characters 12-22:
- 142 |             col_offset = 0;
-                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 143, characters 12-22:
- 143 |             end_lineno = Some 6;
-                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 144, characters 12-26:
- 144 |             end_col_offset = Some 8;
-                   ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 89, characters 28-34:
- 89 |                             lineno = 2;
-                                  ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 90, characters 28-38:
- 90 |                             col_offset = 4;
-                                  ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 91, characters 28-38:
- 91 |                             end_lineno = Some 2;
-                                  ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 92, characters 28-42:
- 92 |                             end_col_offset = Some 5;
-                                  ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 98, characters 28-34:
- 98 |                             lineno = 4;
-                                  ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 99, characters 28-38:
- 99 |                             col_offset = 4;
-                                  ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 100, characters 28-38:
- 100 |                             end_lineno = Some 4;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 101, characters 28-42:
- 101 |                             end_col_offset = Some 14;
-                                   ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 111, characters 28-36:
- 111 |                             Ast.desc =
-                                   ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 113, characters 28-34:
- 113 |                             lineno = 2;
-                                   ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 114, characters 28-38:
- 114 |                             col_offset = 6;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 115, characters 28-38:
- 115 |                             end_lineno = Some 2;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 116, characters 28-42:
- 116 |                             end_col_offset = Some 8;
-                                   ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 119, characters 28-36:
- 119 |                             Ast.desc = Ast.Constant { value = Some (Ast.Bool true); kind = None };
-                                   ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 120, characters 28-34:
- 120 |                             lineno = 4;
-                                   ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 121, characters 28-38:
- 121 |                             col_offset = 15;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 122, characters 28-38:
- 122 |                             end_lineno = Some 4;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 123, characters 28-42:
- 123 |                             end_col_offset = Some 19;
-                                   ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 130, characters 24-32:
- 130 |                         Ast.desc = Ast.Pass;
-                               ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 131, characters 24-30:
- 131 |                         lineno = 6;
-                               ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 132, characters 24-34:
- 132 |                         col_offset = 4;
-                               ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 133, characters 24-34:
- 133 |                         end_lineno = Some 6;
-                               ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 134, characters 24-38:
- 134 |                         end_col_offset = Some 8;
-                               ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 163, characters 12-20:
- 163 |             Ast.desc =
-                   ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 193, characters 12-18:
- 193 |             lineno = 1;
-                   ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 194, characters 12-22:
- 194 |             col_offset = 0;
-                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 195, characters 12-22:
- 195 |             end_lineno = Some 1;
-                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 196, characters 12-26:
- 196 |             end_col_offset = Some 15;
-                   ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 164, characters 14-22:
- 164 |               Ast.Expr
-                     ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of Expr relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 166, characters 18-26:
- 166 |                   Ast.desc =
-                         ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 188, characters 18-24:
- 188 |                   lineno = 1;
-                         ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 189, characters 18-28:
- 189 |                   col_offset = 0;
-                         ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 190, characters 18-28:
- 190 |                   end_lineno = Some 1;
-                         ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 191, characters 18-32:
- 191 |                   end_col_offset = Some 15;
-                         ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 172, characters 30-38:
- 172 |                               Ast.desc = Ast.Name { id = "garbage"; ctx = Ast.Load };
-                                     ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 173, characters 30-36:
- 173 |                               lineno = 1;
-                                     ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 174, characters 30-40:
- 174 |                               col_offset = 2;
-                                     ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 175, characters 30-40:
- 175 |                               end_lineno = Some 1;
-                                     ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 176, characters 30-44:
- 176 |                               end_col_offset = Some 9;
-                                     ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 179, characters 30-38:
- 179 |                               Ast.desc = Ast.Name { id = "a"; ctx = Ast.Load };
-                                     ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 180, characters 30-36:
- 180 |                               lineno = 1;
-                                     ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 181, characters 30-40:
- 181 |                               col_offset = 13;
-                                     ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 182, characters 30-40:
- 182 |                               end_lineno = Some 1;
-                                     ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 183, characters 30-44:
- 183 |                               end_col_offset = Some 14;
-                                     ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 207, characters 6-12:
- 207 |       lineno = 1;
-             ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 208, characters 6-16:
- 208 |       col_offset = 11;
-             ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 209, characters 6-16:
- 209 |       end_lineno = 1;
-             ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 210, characters 6-20:
- 210 |       end_col_offset = 12;
-             ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 228, characters 12-20:
- 228 |             Ast.desc =
-                   ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 299, characters 12-18:
- 299 |             lineno = 1;
-                   ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 300, characters 12-22:
- 300 |             col_offset = 0;
-                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 301, characters 12-22:
- 301 |             end_lineno = Some 1;
-                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 302, characters 12-26:
- 302 |             end_col_offset = Some 25;
-                   ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 242, characters 28-34:
- 242 |                             lineno = 1;
-                                   ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 243, characters 28-38:
- 243 |                             col_offset = 9;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 244, characters 28-38:
- 244 |                             end_lineno = Some 1;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 245, characters 28-42:
- 245 |                             end_col_offset = Some 10;
-                                   ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 253, characters 28-34:
- 253 |                             lineno = 1;
-                                   ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 254, characters 28-38:
- 254 |                             col_offset = 12;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 255, characters 28-38:
- 255 |                             end_lineno = Some 1;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 256, characters 28-42:
- 256 |                             end_col_offset = Some 13;
-                                   ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 262, characters 28-34:
- 262 |                             lineno = 1;
-                                   ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 263, characters 28-38:
- 263 |                             col_offset = 15;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 264, characters 28-38:
- 264 |                             end_lineno = Some 1;
-                                   ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 265, characters 28-42:
- 265 |                             end_col_offset = Some 16;
-                                   ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 274, characters 30-38:
- 274 |                               Ast.desc =
-                                     ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 276, characters 30-36:
- 276 |                               lineno = 1;
-                                     ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 277, characters 30-40:
- 277 |                               col_offset = 17;
-                                     ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 278, characters 30-40:
- 278 |                               end_lineno = Some 1;
-                                     ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 279, characters 30-44:
- 279 |                               end_col_offset = Some 18;
-                                     ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 288, characters 24-32:
- 288 |                         Ast.desc = Ast.Pass;
-                               ^^^^^^^^
- Warning 42 [disambiguated-name]: this use of desc relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 289, characters 24-30:
- 289 |                         lineno = 1;
-                               ^^^^^^
- Warning 42 [disambiguated-name]: this use of lineno relies on type-directed
-   disambiguation, it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 290, characters 24-34:
- 290 |                         col_offset = 21;
-                               ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 291, characters 24-34:
- 291 |                         end_lineno = Some 1;
-                               ^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_lineno relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- 
- File "tests/test_ffi_ocaml.ml", line 292, characters 24-38:
- 292 |                         end_col_offset = Some 25;
-                               ^^^^^^^^^^^^^^
- Warning 42 [disambiguated-name]: this use of end_col_offset relies on
-   type-directed disambiguation,
-   it will not compile with OCaml 4.00 or earlier.
- (cd _build/default && /usr/bin/cargo build --release)
-    Compiling proc-macro2 v1.0.66
-    Compiling unicode-ident v1.0.11
-    Compiling autocfg v1.1.0
-    Compiling libc v0.2.147
-    Compiling memchr v2.5.0
-    Compiling version_check v0.9.4
-    Compiling crossbeam-utils v0.8.16
-    Compiling syn v1.0.109
-    Compiling cfg-if v1.0.0
-    Compiling regex-syntax v0.7.4
-    Compiling scopeguard v1.2.0
-    Compiling serde v1.0.181
-    Compiling rayon-core v1.11.0
-    Compiling serde_derive v1.0.181
-    Compiling io-lifetimes v1.0.11
-    Compiling either v1.9.0
-    Compiling equivalent v1.0.1
-    Compiling hashbrown v0.14.0
-    Compiling rustix v0.37.23
-    Compiling unicode-xid v0.2.4
-    Compiling linux-raw-sys v0.3.8
-    Compiling winnow v0.5.3
-    Compiling rand_core v0.6.4
-    Compiling bitflags v1.3.2
-    Compiling toml_datetime v0.6.3
-    Compiling arbitrary v1.3.0
-    Compiling hashbrown v0.12.3
-    Compiling siphasher v0.3.10
-    Compiling once_cell v1.18.0
-    Compiling rustc-hash v1.1.0
-    Compiling os_str_bytes v6.5.1
-    Compiling thiserror v1.0.44
-    Compiling heck v0.4.1
-    Compiling unicode-width v0.1.10
-    Compiling bumpalo v3.13.0
-    Compiling termcolor v1.2.0
-    Compiling strsim v0.10.0
-    Compiling rust_to_ocaml_attr v0.0.0 (/home/opam/.opam/5.4/.opam-switch/build/errpy.0.0.9/vendor/ocaml/interop/rust_to_ocaml/rust_to_ocaml_attr)
-    Compiling rand v0.8.5
-    Compiling itertools v0.10.5
-    Compiling phf_shared v0.11.2
-    Compiling proc-macro-error-attr v1.0.4
-    Compiling proc-macro-error v1.0.4
-    Compiling unicase v2.6.0
-    Compiling clap_lex v0.2.4
-    Compiling memoffset v0.9.0
-    Compiling crossbeam-epoch v0.9.15
-    Compiling indexmap v1.9.3
-    Compiling crossbeam-channel v0.5.8
-    Compiling quote v1.0.32
-    Compiling phf_generator v0.11.2
-    Compiling syn v2.0.28
-    Compiling crossbeam-deque v0.8.3
-    Compiling aho-corasick v1.0.2
-    Compiling indexmap v2.0.0
-    Compiling cc v1.0.81
-    Compiling toml_edit v0.19.14
-    Compiling tree-sitter v0.20.10
-    Compiling ocamlrep_ocamlpool v0.0.0 (/home/opam/.opam/5.4/.opam-switch/build/errpy.0.0.9/vendor/ocaml/interop/ocamlrep_ocamlpool)
-    Compiling tree_sitter_python v0.0.0 (/home/opam/.opam/5.4/.opam-switch/build/errpy.0.0.9/vendor/tree-sitter-python)
-    Compiling num_cpus v1.16.0
-    Compiling atty v0.2.14
-    Compiling rayon v1.7.0
-    Compiling terminal_size v0.2.6
-    Compiling textwrap v0.16.0
-    Compiling regex-automata v0.3.4
-    Compiling proc-macro-crate v1.3.1
-    Compiling phf_macros v0.11.2
-    Compiling thiserror-impl v1.0.44
- warning: tree_sitter_python@0.0.0: src/scanner.c: In function 'tree_sitter_python_external_scanner_serialize':
- warning: tree_sitter_python@0.0.0: src/scanner.c:430:17: warning: comparison of integer expressions of different signedness: 'int' and 'uint32_t' {aka 'unsigned int'} [-Wsign-compare]
- warning: tree_sitter_python@0.0.0:   430 |     for (; iter < scanner->indents.len &&
- warning: tree_sitter_python@0.0.0:       |                 ^
-    Compiling phf v0.11.2
-    Compiling synstructure v0.12.6
-    Compiling ocamlrep_derive v0.0.0 (/home/opam/.opam/5.4/.opam-switch/build/errpy.0.0.9/vendor/ocaml/interop/ocamlrep_derive)
-    Compiling num_enum_derive v0.5.11
-    Compiling clap_derive v3.2.25
-    Compiling num_enum v0.5.11
-    Compiling regex v1.9.1
-    Compiling bstr v1.6.0
-    Compiling ocamlrep v0.0.0 (/home/opam/.opam/5.4/.opam-switch/build/errpy.0.0.9/vendor/ocaml/interop/ocamlrep)
-    Compiling clap v3.2.25
-    Compiling ffi_ocaml v0.0.0 (/home/opam/.opam/5.4/.opam-switch/build/errpy.0.0.9)
- warning: elided lifetime has a name
-    --> node_wrapper.rs:119:69
-     |
- 119 | fn extract_child_field_names<'a>(ts_node: TSNode<'a>) -> Vec<Option<&str>> {
-     |                              -- lifetime `'a` declared here         ^ this elided lifetime gets resolved as `'a`
-     |
-     = note: `#[warn(elided_named_lifetimes)]` on by default
- 
- warning: elided lifetime has a name
-    --> node_wrapper.rs:159:92
-     |
- 159 |     pub fn child<'a>(&'a self, filtered_cst: &'a FilteredCST<'tree>, idx: usize) -> Option<&Self> {
-     |                  -- lifetime `'a` declared here                                            ^ this elided lifetime gets resolved as `'a`
- 
- warning: elided lifetime has a name
-    --> node_wrapper.rs:196:81
-     |
- 196 |     pub fn parent<'a>(&'a self, filtered_cst: &'a FilteredCST<'tree>) -> Option<&Self> {
-     |                   -- lifetime `'a` declared here                                ^ this elided lifetime gets resolved as `'a`
- 
- warning: elided lifetime has a name
-    --> node_wrapper.rs:228:34
-     |
- 224 |     pub fn children_by_field_name<'a>(
-     |                                   -- lifetime `'a` declared here
- ...
- 228 |     ) -> Box<dyn Iterator<Item = &Node<'a>> + 'a> {
-     |                                  ^ this elided lifetime gets resolved as `'a`
- 
- warning: elided lifetime has a name
-    --> node_wrapper.rs:245:40
-     |
- 242 |     pub fn named_children<'a>(
-     |                           -- lifetime `'a` declared here
- ...
- 245 |     ) -> impl ExactSizeIterator<Item = &Node<'a>> + 'a {
-     |                                        ^ this elided lifetime gets resolved as `'a`
- 
- warning: elided lifetime has a name
-    --> node_wrapper.rs:255:40
-     |
- 252 |     pub fn children<'a>(
-     |                     -- lifetime `'a` declared here
- ...
- 255 |     ) -> impl ExactSizeIterator<Item = &Node<'tree>> + 'a {
-     |                                        ^ this elided lifetime gets resolved as `'a`
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:13:10
-    |
- 13 | #[derive(ToOcamlRep, FromOcamlRep)]
-    |          ^---------
-    |          |
-    |          `ToOcamlRep` is not local
-    |          move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_RecoverableErrorWithLocation`
- 14 | #[rust_to_ocaml(attr = "deriving show")]
- 15 | pub struct RecoverableErrorWithLocation {
-    |            ---------------------------- `RecoverableErrorWithLocation` is not local
-    |
-    = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: `#[warn(non_local_definitions)]` on by default
-    = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:13:22
-    |
- 13 | #[derive(ToOcamlRep, FromOcamlRep)]
-    |                      ^-----------
-    |                      |
-    |                      `FromOcamlRep` is not local
-    |                      move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_RecoverableErrorWithLocation`
- 14 | #[rust_to_ocaml(attr = "deriving show")]
- 15 | pub struct RecoverableErrorWithLocation {
-    |            ---------------------------- `RecoverableErrorWithLocation` is not local
-    |
-    = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:24:34
-    |
- 24 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                  ^---------
-    |                                  |
-    |                                  `ToOcamlRep` is not local
-    |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Num`
- ...
- 27 | pub enum Num {
-    |          --- `Num` is not local
-    |
-    = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:24:46
-    |
- 24 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                              ^-----------
-    |                                              |
-    |                                              `FromOcamlRep` is not local
-    |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Num`
- ...
- 27 | pub enum Num {
-    |          --- `Num` is not local
-    |
-    = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:42:34
-    |
- 42 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                  ^---------
-    |                                  |
-    |                                  `ToOcamlRep` is not local
-    |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_ConstantDesc`
- ...
- 45 | pub enum ConstantDesc {
-    |          ------------ `ConstantDesc` is not local
-    |
-    = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:42:46
-    |
- 42 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                              ^-----------
-    |                                              |
-    |                                              `FromOcamlRep` is not local
-    |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ConstantDesc`
- ...
- 45 | pub enum ConstantDesc {
-    |          ------------ `ConstantDesc` is not local
-    |
-    = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:60:34
-    |
- 60 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                  ^---------
-    |                                  |
-    |                                  `ToOcamlRep` is not local
-    |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Withitem`
- 61 | #[repr(C)]
- 62 | pub struct Withitem {
-    |            -------- `Withitem` is not local
-    |
-    = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:60:46
-    |
- 60 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                              ^-----------
-    |                                              |
-    |                                              `FromOcamlRep` is not local
-    |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Withitem`
- 61 | #[repr(C)]
- 62 | pub struct Withitem {
-    |            -------- `Withitem` is not local
-    |
-    = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:68:34
-    |
- 68 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                  ^---------
-    |                                  |
-    |                                  `ToOcamlRep` is not local
-    |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Unaryop`
- ...
- 71 | pub enum Unaryop {
-    |          ------- `Unaryop` is not local
-    |
-    = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:68:46
-    |
- 68 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                              ^-----------
-    |                                              |
-    |                                              `FromOcamlRep` is not local
-    |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Unaryop`
- ...
- 71 | pub enum Unaryop {
-    |          ------- `Unaryop` is not local
-    |
-    = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:79:34
-    |
- 79 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                  ^---------
-    |                                  |
-    |                                  `ToOcamlRep` is not local
-    |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_TypeIgnore`
- ...
- 82 | pub enum TypeIgnore {
-    |          ---------- `TypeIgnore` is not local
-    |
-    = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:79:46
-    |
- 79 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                              ^-----------
-    |                                              |
-    |                                              `FromOcamlRep` is not local
-    |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_TypeIgnore`
- ...
- 82 | pub enum TypeIgnore {
-    |          ---------- `TypeIgnore` is not local
-    |
-    = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:87:34
-    |
- 87 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                  ^---------
-    |                                  |
-    |                                  `ToOcamlRep` is not local
-    |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Stmt`
- ...
- 90 | pub struct Stmt {
-    |            ---- `Stmt` is not local
-    |
-    = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-   --> ast.rs:87:46
-    |
- 87 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-    |                                              ^-----------
-    |                                              |
-    |                                              `FromOcamlRep` is not local
-    |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Stmt`
- ...
- 90 | pub struct Stmt {
-    |            ---- `Stmt` is not local
-    |
-    = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-    = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-    = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:99:34
-     |
- 99  | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_StmtDesc`
- ...
- 102 | pub enum StmtDesc {
-     |          -------- `StmtDesc` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:99:46
-     |
- 99  | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_StmtDesc`
- ...
- 102 | pub enum StmtDesc {
-     |          -------- `StmtDesc` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:214:34
-     |
- 214 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Pattern`
- ...
- 217 | pub struct Pattern {
-     |            ------- `Pattern` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:214:46
-     |
- 214 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Pattern`
- ...
- 217 | pub struct Pattern {
-     |            ------- `Pattern` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:226:34
-     |
- 226 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_PatternDesc`
- ...
- 229 | pub enum PatternDesc {
-     |          ----------- `PatternDesc` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:226:46
-     |
- 226 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_PatternDesc`
- ...
- 229 | pub enum PatternDesc {
-     |          ----------- `PatternDesc` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:253:34
-     |
- 253 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Operator`
- ...
- 256 | pub enum Operator {
-     |          -------- `Operator` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:253:46
-     |
- 253 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Operator`
- ...
- 256 | pub enum Operator {
-     |          -------- `Operator` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:273:34
-     |
- 273 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Mod_`
- ...
- 276 | pub enum Mod_ {
-     |          ---- `Mod_` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:273:46
-     |
- 273 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Mod_`
- ...
- 276 | pub enum Mod_ {
-     |          ---- `Mod_` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:290:34
-     |
- 290 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_MatchCase`
- ...
- 293 | pub struct MatchCase {
-     |            --------- `MatchCase` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:290:46
-     |
- 290 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_MatchCase`
- ...
- 293 | pub struct MatchCase {
-     |            --------- `MatchCase` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:300:34
-     |
- 300 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Keyword`
- ...
- 303 | pub struct Keyword {
-     |            ------- `Keyword` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:300:46
-     |
- 300 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Keyword`
- ...
- 303 | pub struct Keyword {
-     |            ------- `Keyword` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:313:34
-     |
- 313 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_ExprContext`
- ...
- 316 | pub enum ExprContext {
-     |          ----------- `ExprContext` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:313:46
-     |
- 313 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ExprContext`
- ...
- 316 | pub enum ExprContext {
-     |          ----------- `ExprContext` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:323:34
-     |
- 323 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Expr`
- ...
- 326 | pub struct Expr {
-     |            ---- `Expr` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:323:46
-     |
- 323 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Expr`
- ...
- 326 | pub struct Expr {
-     |            ---- `Expr` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- ...TRUNCATED BY DUNE...
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:335:46
-     |
- 335 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ExprDesc`
- ...
- 338 | pub enum ExprDesc {
-     |          -------- `ExprDesc` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:448:34
-     |
- 448 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Excepthandler`
- ...
- 451 | pub struct Excepthandler {
-     |            ------------- `Excepthandler` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:448:46
-     |
- 448 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Excepthandler`
- ...
- 451 | pub struct Excepthandler {
-     |            ------------- `Excepthandler` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:460:34
-     |
- 460 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_ExcepthandlerDesc`
- ...
- 463 | pub enum ExcepthandlerDesc {
-     |          ----------------- `ExcepthandlerDesc` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:460:46
-     |
- 460 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ExcepthandlerDesc`
- ...
- 463 | pub enum ExcepthandlerDesc {
-     |          ----------------- `ExcepthandlerDesc` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:472:34
-     |
- 472 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Comprehension`
- ...
- 475 | pub struct Comprehension {
-     |            ------------- `Comprehension` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:472:46
-     |
- 472 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Comprehension`
- ...
- 475 | pub struct Comprehension {
-     |            ------------- `Comprehension` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:483:34
-     |
- 483 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Cmpop`
- ...
- 486 | pub enum Cmpop {
-     |          ----- `Cmpop` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:483:46
-     |
- 483 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Cmpop`
- ...
- 486 | pub enum Cmpop {
-     |          ----- `Cmpop` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:500:34
-     |
- 500 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Boolop`
- ...
- 503 | pub enum Boolop {
-     |          ------ `Boolop` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:500:46
-     |
- 500 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Boolop`
- ...
- 503 | pub enum Boolop {
-     |          ------ `Boolop` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:509:34
-     |
- 509 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Arguments`
- ...
- 512 | pub struct Arguments {
-     |            --------- `Arguments` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:509:46
-     |
- 509 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Arguments`
- ...
- 512 | pub struct Arguments {
-     |            --------- `Arguments` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:523:34
-     |
- 523 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Arg`
- ...
- 526 | pub struct Arg {
-     |            --- `Arg` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:523:46
-     |
- 523 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Arg`
- ...
- 526 | pub struct Arg {
-     |            --- `Arg` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:537:34
-     |
- 537 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_Alias`
- ...
- 540 | pub struct Alias {
-     |            ----- `Alias` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:537:46
-     |
- 537 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_Alias`
- ...
- 540 | pub struct Alias {
-     |            ----- `Alias` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:550:34
-     |
- 550 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_ArgumentsArgs`
- ...
- 553 | pub enum ArgumentsArgs {
-     |          ------------- `ArgumentsArgs` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:550:46
-     |
- 550 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ArgumentsArgs`
- ...
- 553 | pub enum ArgumentsArgs {
-     |          ------------- `ArgumentsArgs` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:561:34
-     |
- 561 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_ArgumentsKwarg`
- ...
- 564 | pub enum ArgumentsKwarg {
-     |          -------------- `ArgumentsKwarg` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:561:46
-     |
- 561 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ArgumentsKwarg`
- ...
- 564 | pub enum ArgumentsKwarg {
-     |          -------------- `ArgumentsKwarg` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:572:34
-     |
- 572 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_ArgumentsVararg`
- ...
- 575 | pub enum ArgumentsVararg {
-     |          --------------- `ArgumentsVararg` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:572:46
-     |
- 572 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ArgumentsVararg`
- ...
- 575 | pub enum ArgumentsVararg {
-     |          --------------- `ArgumentsVararg` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:583:34
-     |
- 583 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_ExcepthandlerExcepthandlerName`
- ...
- 586 | pub enum ExcepthandlerExcepthandlerName {
-     |          ------------------------------ `ExcepthandlerExcepthandlerName` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:583:46
-     |
- 583 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ExcepthandlerExcepthandlerName`
- ...
- 586 | pub enum ExcepthandlerExcepthandlerName {
-     |          ------------------------------ `ExcepthandlerExcepthandlerName` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:594:34
-     |
- 594 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_ExprBytesS`
- ...
- 597 | pub enum ExprBytesS {
-     |          ---------- `ExprBytesS` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:594:46
-     |
- 594 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ExprBytesS`
- ...
- 597 | pub enum ExprBytesS {
-     |          ---------- `ExprBytesS` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:603:34
-     |
- 603 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_ExprSubscriptSlice`
- ...
- 606 | pub enum ExprSubscriptSlice {
-     |          ------------------ `ExprSubscriptSlice` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:603:46
-     |
- 603 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ExprSubscriptSlice`
- ...
- 606 | pub enum ExprSubscriptSlice {
-     |          ------------------ `ExprSubscriptSlice` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:612:34
-     |
- 612 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_ExprYieldfromValue`
- ...
- 615 | pub enum ExprYieldfromValue {
-     |          ------------------ `ExprYieldfromValue` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:612:46
-     |
- 612 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_ExprYieldfromValue`
- ...
- 615 | pub enum ExprYieldfromValue {
-     |          ------------------ `ExprYieldfromValue` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:622:34
-     |
- 622 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_KeywordArg`
- ...
- 625 | pub enum KeywordArg {
-     |          ---------- `KeywordArg` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:622:46
-     |
- 622 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_KeywordArg`
- ...
- 625 | pub enum KeywordArg {
-     |          ---------- `KeywordArg` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:632:34
-     |
- 632 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                  ^---------
-     |                                  |
-     |                                  `ToOcamlRep` is not local
-     |                                  move the `impl` block outside of this constant `_DERIVE_ocamlrep_ToOcamlRep_FOR_StmtImportfromModule`
- ...
- 635 | pub enum StmtImportfromModule {
-     |          -------------------- `StmtImportfromModule` is not local
-     |
-     = note: the derive macro `ToOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `ToOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `ToOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
-    --> ast.rs:632:46
-     |
- 632 | #[derive(Serialize, Deserialize, ToOcamlRep, FromOcamlRep)]
-     |                                              ^-----------
-     |                                              |
-     |                                              `FromOcamlRep` is not local
-     |                                              move the `impl` block outside of this constant `_DERIVE_ocamlrep_FromOcamlRep_FOR_StmtImportfromModule`
- ...
- 635 | pub enum StmtImportfromModule {
-     |          -------------------- `StmtImportfromModule` is not local
-     |
-     = note: the derive macro `FromOcamlRep` defines the non-local `impl`, and may need to be changed
-     = note: the derive macro `FromOcamlRep` may come from an old version of the `ocamlrep_derive` crate, try updating your dependency with `cargo update -p ocamlrep_derive`
-     = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
-     = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
-     = note: this warning originates in the derive macro `FromOcamlRep` (in Nightly builds, run with -Z macro-backtrace for more info)
- 
- warning: `ffi_ocaml` (lib) generated 74 warnings
- warning: `ffi_ocaml` (bin "print_cst") generated 74 warnings (74 duplicates)
- warning: `ffi_ocaml` (bin "print_ast") generated 74 warnings (74 duplicates)
-     Finished `release` profile [optimized] target(s) in 2m 30s
-> compiled  errpy.0.0.9
-> removed   errpy.0.0.9
-> installed errpy.0.0.9
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-25 19:41.12 ---> saved as "c95d335c4000490eb80b2d0d337ae25fcd4f6a8e6aa11e15a6ffaf9902771687"
Job succeeded
2026-03-25 19:41.45: Job succeeded