(not at the head of any monitored branch or PR)
2026-03-10 08:59.56: New job: test lwt_ppx.5.8.1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29530/head (3af7d0a25910b3d20c909e559efb484eb6a78128)
                              on macos-homebrew-ocaml-4.14/arm64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29530/head" && git reset --hard 3af7d0a2
git fetch origin master
git merge --no-edit 3c70647a78a7fd22066fca4f17f7ca4514500663
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM macos-homebrew-ocaml-4.14
USER 1000:1000
RUN ln -f ~/local/bin/opam-dev ~/local/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url -k local --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lwt_ppx.5.8.1 5.8.1
RUN opam reinstall lwt_ppx.5.8.1; \
    res=$?; \
    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 "\"macos-homebrew\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt_ppx.5.8.1' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test lwt_ppx.5.8.1) || true
RUN opam reinstall --with-test --verbose lwt_ppx.5.8.1; \
    res=$?; \
    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 "\"macos-homebrew\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt_ppx.5.8.1' && partial_fails="$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 .

2026-03-10 08:59.56: Using cache hint "macos-homebrew-ocaml-4.14-lwt_ppx.5.8.1-3af7d0a25910b3d20c909e559efb484eb6a78128"
2026-03-10 08:59.56: Using OBuilder spec:
((from macos-homebrew-ocaml-4.14)
 (user (uid 1000) (gid 1000))
 (run (shell "ln -f ~/local/bin/opam-dev ~/local/bin/opam"))
 (run (network host)
      (shell "opam init --reinit -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 -k local --strict default opam-repository/"))
 (run (network host)
      (shell "opam update --depexts || true"))
 (run (shell "opam pin add -k version -yn lwt_ppx.5.8.1 5.8.1"))
 (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))
      (network host)
      (shell  "opam reinstall lwt_ppx.5.8.1;\
             \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 \"\\\"macos-homebrew\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt_ppx.5.8.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test lwt_ppx.5.8.1) || true"))
 (run (shell  "opam reinstall --with-test --verbose lwt_ppx.5.8.1;\
             \n        res=$?;\
             \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 \"\\\"macos-homebrew\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt_ppx.5.8.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-10 08:59.56: Waiting for resource in pool OCluster
2026-03-10 09:06.57: Waiting for worker…
2026-03-10 10:02.09: Got resource from pool OCluster
Building on m1-worker-02
All commits already cached
Updating files:  62% (11435/18405)
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Updating files: 100% (18405/18405), done.
HEAD is now at 3c70647a78 Merge pull request #29507 from NathanReb/release-ppxlib-0-38-0-5-5-preview
Updating 3c70647a78..3af7d0a259
Fast-forward
 packages/bimage-lwt/bimage-lwt.0.3.0/opam    | 6 +++++-
 packages/bimage-lwt/bimage-lwt.0.3.1/opam    | 6 +++++-
 packages/bimage-lwt/bimage-lwt.0.4.0/opam    | 6 +++++-
 packages/caqti-lwt/caqti-lwt.0.11.0/opam     | 4 +++-
 packages/caqti-lwt/caqti-lwt.1.0.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.2.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.3.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.6.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.7.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.8.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.9.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.2.0.1/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.2.1.1/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.2.2.4/opam      | 6 +++++-
 packages/fuseau-lwt/fuseau-lwt.0.1/opam      | 6 +++++-
 packages/lambda-term/lambda-term.1.13/opam   | 6 +++++-
 packages/lambda-term/lambda-term.2.0.1/opam  | 6 +++++-
 packages/lambda-term/lambda-term.2.0.2/opam  | 6 +++++-
 packages/lambda-term/lambda-term.2.0.3/opam  | 6 +++++-
 packages/lambda-term/lambda-term.2.0/opam    | 6 +++++-
 packages/lambda-term/lambda-term.3.0.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.0.1/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.1.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.2.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.3.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.3.1/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.3.2/opam  | 6 +++++-
 packages/lwt_domain/lwt_domain.0.1.0/opam    | 6 +++++-
 packages/lwt_domain/lwt_domain.0.2.0/opam    | 6 +++++-
 packages/lwt_domain/lwt_domain.0.3.0/opam    | 6 +++++-
 packages/lwt_eio/lwt_eio.0.1/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.2/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.3/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.4/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.5.1/opam          | 6 +++++-
 packages/lwt_eio/lwt_eio.0.5/opam            | 6 +++++-
 packages/lwt_glib/lwt_glib.1.0.1/opam        | 6 +++++-
 packages/lwt_glib/lwt_glib.1.1.0/opam        | 6 +++++-
 packages/lwt_glib/lwt_glib.1.1.1/opam        | 6 +++++-
 packages/lwt_log/lwt_log.1.1.0/opam          | 6 +++++-
 packages/lwt_log/lwt_log.1.1.1/opam          | 6 +++++-
 packages/lwt_log/lwt_log.1.1.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.0.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.0.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.1.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.3/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.4/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.3/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.1.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.8.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.8.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.9.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.9.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.9.3/opam          | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.10/opam | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.6/opam  | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.7/opam  | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.8/opam  | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.9/opam  | 6 +++++-
 packages/mwt/mwt.0.1.0/opam                  | 6 +++++-
 packages/nocrypto/nocrypto.0.5.4-1/opam      | 6 +++++-
 packages/nocrypto/nocrypto.0.5.4-2/opam      | 6 +++++-
 packages/ocluster/ocluster.0.1/opam          | 4 +++-
 packages/ocluster/ocluster.0.2.1/opam        | 6 +++++-
 packages/ocluster/ocluster.0.2/opam          | 4 +++-
 packages/ocluster/ocluster.0.3.0/opam        | 6 +++++-
 packages/picos/picos.0.3.0/opam              | 6 +++++-
 packages/picos/picos.0.4.0/opam              | 6 +++++-
 packages/picos_lwt/picos_lwt.0.5.0/opam      | 6 +++++-
 packages/picos_lwt/picos_lwt.0.6.0/opam      | 6 +++++-
 packages/tezt/tezt.2.0.0/opam                | 6 +++++-
 packages/tezt/tezt.3.0.0/opam                | 4 +++-
 packages/tezt/tezt.3.1.0/opam                | 4 +++-
 packages/tezt/tezt.3.1.1/opam                | 4 +++-
 packages/tezt/tezt.4.0.0/opam                | 4 +++-
 packages/tezt/tezt.4.1.0/opam                | 4 +++-
 packages/tezt/tezt.4.2.0/opam                | 4 +++-
 packages/tezt/tezt.4.3.0/opam                | 4 +++-
 84 files changed, 400 insertions(+), 84 deletions(-)

(from macos-homebrew-ocaml-4.14)
2026-03-10 10:02.12 ---> using "0c60f117aee57abea8364cb033d47bb1d63ff0f68e5ee97378e032498e8442af" from cache

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

/: (run (shell "ln -f ~/local/bin/opam-dev ~/local/bin/opam"))
2026-03-10 10:02.12 ---> using "f20a31eccb94af52fa2a3ef86b723bc6460bac3d8a92b8861915540c2498d20a" from cache

/: (run (network host)
        (shell "opam init --reinit -ni"))
No configuration file found, using 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 /Users/mac1000/.opam from version 2.1 to version 2.2, which can't be reverted.
You may want to back it up before going further.

Continue? [Y/n] y
[NOTE] The 'jobs' option was reset, its value was 1 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:
           opam option jobs=1 --global
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes from git+file:///Users/mac1000/opam-repository
2026-03-10 10:02.12 ---> using "7818e224f85c11d1d318abe9ba4e297be345388b7ed476f912b6900c6bae56aa" from cache

/: (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=arm64 os=macos os-distribution=homebrew os-version=15.5
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 7
# repositories         1 (version-controlled)
# pinned               0
# current-switch       4.14.2
# invariant            ["ocaml-base-compiler" {= "4.14.2"} | "ocaml-system" {= "4.14.2"}]
# compiler-packages    ocaml-base-compiler.4.14.2, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /Users/mac1000/.opam/4.14.2/lib/ocaml/stublibs:/Users/mac1000/.opam/4.14.2/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.14.2
2026-03-10 10:02.12 ---> using "625776f8b2f728a128171e2ba4372c97abd18632a07574a8412026e8be39dac5" from cache

/: (env OPAMDOWNLOADJOBS 1)

/: (env OPAMERRLOGLEN 0)

/: (env OPAMPRECISETRACKING 1)

/: (env CI true)

/: (env OPAM_REPO_CI true)

/: (run (shell "rm -rf opam-repository/"))
2026-03-10 10:02.12 ---> using "15fbb76bf7dee5d6e8ae583230339015a61d8d2d8397de2cfe6459f8ba421f1e" from cache

/: (copy (src .) (dst opam-repository/))
2026-03-10 10:02.14 ---> using "62df4a6736934bb6c3691030f97d3d2e01998b025470a661281ddfb72f92a1c8" from cache

/: (run (shell "opam repository set-url -k local --strict default opam-repository/"))
[default] Initialised
2026-03-10 10:02.14 ---> using "af375344c24704545d7b5b85acba18d8cca4a07dd1c3de94a089b7c4ba534bcc" from cache

/: (run (network host)
        (shell "opam update --depexts || true"))
+ /opt/homebrew/bin/brew "update"
- ==> Updating Homebrew...
- ==> Downloading https://ghcr.io/v2/homebrew/core/portable-ruby/blobs/sha256:1c98fa49eacc935640a6f8e10a2bf33f14cfc276804b71ddb658ea45ba99d167
- #=#=#                                                                          

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- ==> Pouring portable-ruby-3.4.8.arm64_big_sur.bottle.tar.gz
- ==> Homebrew collects anonymous analytics.
- Read the analytics documentation (and how to opt-out) here:
-   https://docs.brew.sh/Analytics
- No analytics have been recorded yet (nor will be during this `brew` run).
- 
- ==> Homebrew is run entirely by unpaid volunteers. Please consider donating:
-   https://github.com/Homebrew/brew#donations
- 
- Already up-to-date.
2026-03-10 10:02.14 ---> using "a6b5f30c5231180af1bb228cd259aa8c12463acbf36bf242b51aae5b70935330" from cache

/: (run (shell "opam pin add -k version -yn lwt_ppx.5.8.1 5.8.1"))
lwt_ppx is now pinned to version 5.8.1
2026-03-10 10:02.14 ---> using "db372d202c1502371af7630efc5093e81392120bfb00bcd9e67e294a22eac2d7" from cache

/: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))
        (network host)
        (shell  "opam reinstall lwt_ppx.5.8.1;\
               \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 \"\\\"macos-homebrew\\\"\"; then\
               \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
               \n          fi;\
               \n          test \"$pkg\" != 'lwt_ppx.5.8.1' && partial_fails=\"$partial_fails $pkg\";\
               \n        done;\
               \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
               \n        exit 1"))
lwt_ppx.5.8.1 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 14 packages
  - install base-bytes          base           [required by ocplib-endian]
  - install cppo                1.8.0          [required by lwt]
  - install csexp               1.5.2          [required by dune-configurator]
  - install dune                3.21.1         [required by lwt_ppx]
  - install dune-configurator   3.21.1         [required by lwt]
  - install lwt                 5.9.2          [required by lwt_ppx]
  - install lwt_ppx             5.8.1 (pinned)
  - install ocaml-compiler-libs v0.12.4        [required by ppxlib]
  - install ocamlfind           1.9.8          [required by base-bytes]
  - install ocplib-endian       1.2            [required by lwt]
  - install ppx_derivers        1.2.1          [required by ppxlib]
  - install ppxlib              0.35.0         [required by lwt_ppx]
  - install sexplib0            v0.17.0        [required by ppxlib]
  - install stdlib-shims        0.3.0          [required by ppxlib]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved cppo.1.8.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved dune.3.21.1, dune-configurator.3.21.1  (cached)
-> retrieved lwt.5.9.2  (cached)
-> retrieved lwt_ppx.5.8.1  (cached)
-> retrieved ocaml-compiler-libs.v0.12.4  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppxlib.0.35.0  (cached)
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed dune.3.21.1
-> installed ppx_derivers.1.2.1
-> installed stdlib-shims.0.3.0
-> installed csexp.1.5.2
-> installed sexplib0.v0.17.0
-> installed ocaml-compiler-libs.v0.12.4
-> installed cppo.1.8.0
-> installed ocplib-endian.1.2
-> installed dune-configurator.3.21.1
-> installed lwt.5.9.2
-> installed ppxlib.0.35.0
-> installed lwt_ppx.5.8.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-10 10:02.14 ---> using "12fc14dffafc1aa3b23d7cd77586c008bace4fbc37eff247db608e772376b5b1" from cache

/: (run (network host)
        (shell "(opam reinstall --with-test lwt_ppx.5.8.1) || true"))
The following actions will be performed:
=== recompile 1 package
  - recompile lwt_ppx 5.8.1 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
[ERROR] The compilation of lwt_ppx.5.8.1 failed at "dune build -p lwt_ppx -j 7 @install @runtest".

#=== ERROR while compiling lwt_ppx.5.8.1 ======================================#
# context              2.5.0 | macos/arm64 | ocaml-base-compiler.4.14.2 | pinned(https://github.com/ocsigen/lwt/archive/refs/tags/5.8.1.tar.gz)
# path                 ~/.opam/4.14.2/.opam-switch/build/lwt_ppx.5.8.1
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p lwt_ppx -j 7 @install @runtest
# exit-code            1
# env-file             ~/.opam/log/lwt_ppx-37204-f14e4c.env
# output-file          ~/.opam/log/lwt_ppx-37204-f14e4c.out
### output ###
# (cd _build/default && /Users/mac1000/.opam/4.14.2/bin/ocamlc.opt -w -40 -warn-error -22 -g -bin-annot -I test/ppx/.main.eobjs/byte -I /Users/mac1000/.opam/4.14.2/lib/bytes -I /Users/mac1000/.opam/4.14.2/lib/lwt -I /Users/mac1000/.opam/4.14.2/lib/lwt/unix -I /Users/mac1000/.opam/4.14.2/lib/ocaml/threads -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian/bigstring -I test/.lwttester.objs/byte -no-alias-deps -o test/ppx/.main.eobjs/byte/dune__exe__Main.cmo -c -impl test/ppx/main.pp.ml)
# File "test/ppx/main.ml", line 9, characters 0-46:
# 9 | let%lwt structure_let_result = Lwt.return_true
#     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# Warning 22 [preprocessor]: let%lwt should not be used at the module item level.
# Replace let%lwt x = e by let x = Lwt_main.run (e)
# (cd _build/default && /Users/mac1000/.opam/4.14.2/bin/ocamlopt.opt -w -40 -warn-error -22 -g -I test/ppx/.main.eobjs/byte -I test/ppx/.main.eobjs/native -I /Users/mac1000/.opam/4.14.2/lib/bytes -I /Users/mac1000/.opam/4.14.2/lib/lwt -I /Users/mac1000/.opam/4.14.2/lib/lwt/unix -I /Users/mac1000/.opam/4.14.2/lib/ocaml/threads -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian/bigstring -I test/.lwttester.objs/byte -I test/.lwttester.objs/native -intf-suffix .ml -no-alias-deps -o test/ppx/.main.eobjs/native/dune__exe__Main.cmx -c -impl test/ppx/main.pp.ml)
# File "test/ppx/main.ml", line 9, characters 0-46:
# 9 | let%lwt structure_let_result = Lwt.return_true
#     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# Warning 22 [preprocessor]: let%lwt should not be used at the module item level.
# Replace let%lwt x = e by let x = Lwt_main.run (e)
# (cd _build/default/test/ppx && ./main.exe)
# Testing library 'ppx'...
# ................
# Ok. 16 tests ran, 0 tests skipped in 1.92 seconds
# File "test/unix/dune", line 22, characters 7-11:
# 22 |  (name main)
#             ^^^^
# (cd _build/default/test/unix && ./main.exe)
# Testing library 'unix'...
# ...................E.................SSEEEEEEE..................................................................................................EEEEEEE.....E........EEEE.......................................................................
# Test 'establish_server: implicit close on exception' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bind: basic' in suite 'lwt_unix' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'getgrgid and Unix.getgrgid' in suite 'lwt_unix' raised 'Not_found'
# Test 'getgrnam and Unix.getgrnam' in suite 'lwt_unix' raised 'Not_found'
# Test 'establish_server_1: shutdown: client closes first' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'open_connection: shutdown: server closes first' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'establish_server: implicit close' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'establish_server: explicit close' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'with_connection' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'mcast-join-loop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'mcast-nojoin-loop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'mcast-join-noloop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'mcast-nojoin-noloop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes recv' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes send' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes recvfrom' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes sendto' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes recv_msg' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes send_msg' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'send_msgto' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build lwt_ppx 5.8.1
+- 
- No changes have been performed
# To update the current shell environment, run: eval $(opam env)
2026-03-10 10:02.26 ---> saved as "28fcae509d6953927a01cc370802c955f24d6cd808b630373267751770c382c9"

/: (run (shell  "opam reinstall --with-test --verbose lwt_ppx.5.8.1;\
               \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 \"\\\"macos-homebrew\\\"\"; then\
               \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
               \n          fi;\
               \n          test \"$pkg\" != 'lwt_ppx.5.8.1' && partial_fails=\"$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 lwt_ppx 5.8.1 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  2/4: [lwt_ppx: dune build]
+ /Users/mac1000/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "lwt_ppx" "-j" "7" "@install" "@runtest" (CWD=/Users/mac1000/.opam/4.14.2/.opam-switch/build/lwt_ppx.5.8.1)
- (cd _build/default && /Users/mac1000/.opam/4.14.2/bin/ocamlc.opt -w -40 -warn-error -22 -g -bin-annot -I test/ppx/.main.eobjs/byte -I /Users/mac1000/.opam/4.14.2/lib/bytes -I /Users/mac1000/.opam/4.14.2/lib/lwt -I /Users/mac1000/.opam/4.14.2/lib/lwt/unix -I /Users/mac1000/.opam/4.14.2/lib/ocaml/threads -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian/bigstring -I test/.lwttester.objs/byte -no-alias-deps -o test/ppx/.main.eobjs/byte/dune__exe__Main.cmo -c -impl test/ppx/main.pp.ml)
- File "test/ppx/main.ml", line 9, characters 0-46:
- 9 | let%lwt structure_let_result = Lwt.return_true
-     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Warning 22 [preprocessor]: let%lwt should not be used at the module item level.
- Replace let%lwt x = e by let x = Lwt_main.run (e)
- (cd _build/default && /Users/mac1000/.opam/4.14.2/bin/ocamlopt.opt -w -40 -warn-error -22 -g -I test/ppx/.main.eobjs/byte -I test/ppx/.main.eobjs/native -I /Users/mac1000/.opam/4.14.2/lib/bytes -I /Users/mac1000/.opam/4.14.2/lib/lwt -I /Users/mac1000/.opam/4.14.2/lib/lwt/unix -I /Users/mac1000/.opam/4.14.2/lib/ocaml/threads -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian/bigstring -I test/.lwttester.objs/byte -I test/.lwttester.objs/native -intf-suffix .ml -no-alias-deps -o test/ppx/.main.eobjs/native/dune__exe__Main.cmx -c -impl test/ppx/main.pp.ml)
- File "test/ppx/main.ml", line 9, characters 0-46:
- 9 | let%lwt structure_let_result = Lwt.return_true
-     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Warning 22 [preprocessor]: let%lwt should not be used at the module item level.
- Replace let%lwt x = e by let x = Lwt_main.run (e)
- (cd _build/default/test/ppx && ./main.exe)
- Testing library 'ppx'...
- ................
- Ok. 16 tests ran, 0 tests skipped in 1.76 seconds
- File "test/unix/dune", line 22, characters 7-11:
- 22 |  (name main)
-             ^^^^
- (cd _build/default/test/unix && ./main.exe)
- Testing library 'unix'...
- ...................E.................SSEEEEEEE..................................................................................................EEEEEEE......E........EEEE......................................................................
- Test 'establish_server: implicit close on exception' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'bind: basic' in suite 'lwt_unix' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'getgrgid and Unix.getgrgid' in suite 'lwt_unix' raised 'Not_found'
- Test 'getgrnam and Unix.getgrnam' in suite 'lwt_unix' raised 'Not_found'
- Test 'establish_server_1: shutdown: client closes first' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'open_connection: shutdown: server closes first' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'establish_server: implicit close' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'establish_server: explicit close' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'with_connection' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'mcast-join-loop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'mcast-nojoin-loop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'mcast-join-noloop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'mcast-nojoin-noloop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'bytes recv' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'bytes send' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'bytes recvfrom' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'bytes sendto' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'bytes recv_msg' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'bytes send_msg' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
- Test 'send_msgto' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
[ERROR] The compilation of lwt_ppx.5.8.1 failed at "dune build -p lwt_ppx -j 7 @install @runtest".

#=== ERROR while compiling lwt_ppx.5.8.1 ======================================#
# context              2.5.0 | macos/arm64 | ocaml-base-compiler.4.14.2 | pinned(https://github.com/ocsigen/lwt/archive/refs/tags/5.8.1.tar.gz)
# path                 ~/.opam/4.14.2/.opam-switch/build/lwt_ppx.5.8.1
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p lwt_ppx -j 7 @install @runtest
# exit-code            1
# env-file             ~/.opam/log/lwt_ppx-37712-ff512f.env
# output-file          ~/.opam/log/lwt_ppx-37712-ff512f.out
### output ###
# (cd _build/default && /Users/mac1000/.opam/4.14.2/bin/ocamlc.opt -w -40 -warn-error -22 -g -bin-annot -I test/ppx/.main.eobjs/byte -I /Users/mac1000/.opam/4.14.2/lib/bytes -I /Users/mac1000/.opam/4.14.2/lib/lwt -I /Users/mac1000/.opam/4.14.2/lib/lwt/unix -I /Users/mac1000/.opam/4.14.2/lib/ocaml/threads -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian/bigstring -I test/.lwttester.objs/byte -no-alias-deps -o test/ppx/.main.eobjs/byte/dune__exe__Main.cmo -c -impl test/ppx/main.pp.ml)
# File "test/ppx/main.ml", line 9, characters 0-46:
# 9 | let%lwt structure_let_result = Lwt.return_true
#     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# Warning 22 [preprocessor]: let%lwt should not be used at the module item level.
# Replace let%lwt x = e by let x = Lwt_main.run (e)
# (cd _build/default && /Users/mac1000/.opam/4.14.2/bin/ocamlopt.opt -w -40 -warn-error -22 -g -I test/ppx/.main.eobjs/byte -I test/ppx/.main.eobjs/native -I /Users/mac1000/.opam/4.14.2/lib/bytes -I /Users/mac1000/.opam/4.14.2/lib/lwt -I /Users/mac1000/.opam/4.14.2/lib/lwt/unix -I /Users/mac1000/.opam/4.14.2/lib/ocaml/threads -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian -I /Users/mac1000/.opam/4.14.2/lib/ocplib-endian/bigstring -I test/.lwttester.objs/byte -I test/.lwttester.objs/native -intf-suffix .ml -no-alias-deps -o test/ppx/.main.eobjs/native/dune__exe__Main.cmx -c -impl test/ppx/main.pp.ml)
# File "test/ppx/main.ml", line 9, characters 0-46:
# 9 | let%lwt structure_let_result = Lwt.return_true
#     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# Warning 22 [preprocessor]: let%lwt should not be used at the module item level.
# Replace let%lwt x = e by let x = Lwt_main.run (e)
# (cd _build/default/test/ppx && ./main.exe)
# Testing library 'ppx'...
# ................
# Ok. 16 tests ran, 0 tests skipped in 1.76 seconds
# File "test/unix/dune", line 22, characters 7-11:
# 22 |  (name main)
#             ^^^^
# (cd _build/default/test/unix && ./main.exe)
# Testing library 'unix'...
# ...................E.................SSEEEEEEE..................................................................................................EEEEEEE......E........EEEE......................................................................
# Test 'establish_server: implicit close on exception' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bind: basic' in suite 'lwt_unix' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'getgrgid and Unix.getgrgid' in suite 'lwt_unix' raised 'Not_found'
# Test 'getgrnam and Unix.getgrnam' in suite 'lwt_unix' raised 'Not_found'
# Test 'establish_server_1: shutdown: client closes first' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'open_connection: shutdown: server closes first' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'establish_server: implicit close' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'establish_server: explicit close' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'with_connection' in suite 'lwt_io' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'mcast-join-loop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'mcast-nojoin-loop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'mcast-join-noloop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'mcast-nojoin-noloop' in suite 'unix_mcast' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes recv' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes send' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes recvfrom' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes sendto' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes recv_msg' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'bytes send_msg' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'
# Test 'send_msgto' in suite 'lwt_bytes' raised 'Unix.Unix_error(Unix.EPERM, "bind", "")'



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build lwt_ppx 5.8.1
+- 
- No changes have been performed
# To update the current shell environment, run: eval $(opam env)
'opam reinstall --with-test --verbose lwt_ppx.5.8.1' failed.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
"/usr/bin/env" "bash" "-c" "opam reinstall --with-test --verbose lwt_ppx.5.8.1;
        res=$?;
        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 "\"macos-homebrew\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'lwt_ppx.5.8.1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 1
2026-03-10 10:02.45: Job failed: Failed: Build failed
2026-03-10 10:02.45: Log analysis:
2026-03-10 10:02.45: >>> 
[ERROR] The compilation of lwt_ppx.5.8.1 failed at "dune build -p lwt_ppx -j 7 @install @runtest".
 (score = 20)
2026-03-10 10:02.45: >>> 
[ERROR] The compilation of lwt_ppx.5.8.1 failed at "dune build -p lwt_ppx -j 7 @install @runtest".
 (score = 20)
2026-03-10 10:02.45: The compilation of lwt_ppx.5.8.1 failed at "dune build -p lwt_ppx -j 7 @install @runtest".