(not at the head of any monitored branch or PR)
2026-01-08 10:46.45: New job: build canary.0.0.4, lower-bounds, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29199/head (be591f42548c59a230f63d940107d64de3c89e82)
                              on debian-13-ocaml-4.10/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29199/head" && git reset --hard be591f42
git fetch origin master
git merge --no-edit c12c1ea9e7887cc07f2ab967d2eb85c54386ae57
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.10@sha256:3c3bde2371ffb0c0755f554d107cb78ed2968bb3f2c6a84ef2337cb6416a0bbb
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn canary.0.0.4 0.0.4
RUN opam reinstall canary.0.0.4; \
    res=$?; \
    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 "$pkg" != 'canary.0.0.4' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
ENV OPAMCRITERIA="+removed,+count[version-lag,solution]"
ENV OPAMFIXUPCRITERIA="+removed,+count[version-lag,solution]"
ENV OPAMUPGRADECRITERIA="+removed,+count[version-lag,solution]"
RUN opam reinstall canary.0.0.4; \
    res=$?; \
    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 "$pkg" != 'canary.0.0.4' && partial_fails="$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 .

2026-01-08 10:46.45: Using cache hint "ocaml/opam:debian-13-ocaml-4.10@sha256:3c3bde2371ffb0c0755f554d107cb78ed2968bb3f2c6a84ef2337cb6416a0bbb-canary.0.0.4-be591f42548c59a230f63d940107d64de3c89e82"
2026-01-08 10:46.45: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.10@sha256:3c3bde2371ffb0c0755f554d107cb78ed2968bb3f2c6a84ef2337cb6416a0bbb)
 (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 canary.0.0.4 0.0.4"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall canary.0.0.4;\
             \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 \"$pkg\" != 'canary.0.0.4' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (env OPAMCRITERIA +removed,+count[version-lag,solution])
 (env OPAMFIXUPCRITERIA +removed,+count[version-lag,solution])
 (env OPAMUPGRADECRITERIA +removed,+count[version-lag,solution])
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall canary.0.0.4;\
             \n        res=$?;\
             \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 \"$pkg\" != 'canary.0.0.4' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-08 10:46.45: Waiting for resource in pool OCluster
2026-01-08 10:46.46: Waiting for worker…
2026-01-08 10:46.46: Got resource from pool OCluster
Building on eumache
All commits already cached
HEAD is now at c12c1ea9e7 Merge pull request #29156 from raphael-proust/kinetic-client-001-build-fail
Updating c12c1ea9e7..be591f4254
Fast-forward
 packages/canary/canary.0.0.4/opam | 57 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 packages/canary/canary.0.0.4/opam

(from ocaml/opam:debian-13-ocaml-4.10@sha256:3c3bde2371ffb0c0755f554d107cb78ed2968bb3f2c6a84ef2337cb6416a0bbb)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.10@sha256:3c3bde2371ffb0c0755f554d107cb78ed2968bb3f2c6a84ef2337cb6416a0bbb' locally
docker.io/ocaml/opam@sha256:3c3bde2371ffb0c0755f554d107cb78ed2968bb3f2c6a84ef2337cb6416a0bbb: Pulling from ocaml/opam
281b80c799de: Already exists
ce76feb86791: Already exists
7984eb0e5b45: Already exists
56c452a960b1: Already exists
b85825bef00a: Already exists
d6ff43dfb85c: Already exists
4197ec645389: Already exists
37cac33e41ff: Already exists
4cb993fb248e: Already exists
ca442870f91f: Already exists
b1d1a2fb5f4a: Already exists
0dea577b2801: Already exists
cc10daaea4fd: Already exists
5f878cb1723a: Already exists
8968959fa983: Already exists
5bdd9b9ed0e3: Already exists
55661c5b388f: Already exists
55661c5b388f: Already exists
92d1dc6907bd: Already exists
7100b414728b: Already exists
a6a54ddc9818: Already exists
a920ad627810: Already exists
4f4fb700ef54: Already exists
f7df7b6e19c0: Already exists
cd713d66718c: Already exists
6ed45ab2af86: Already exists
40598b80a8fe: Already exists
983f7969ff00: Already exists
40ec09ee09bd: Already exists
76a0afa38cd9: Already exists
1d5a564d139a: Already exists
82883b85a4f0: Already exists
1d8458efd73b: Already exists
2d80a9fac9ac: Already exists
4d69ee6ae94b: Already exists
ce8d28b713f1: Already exists
97580d938033: Already exists
da5fa40e04f8: Already exists
d7a499968f64: Already exists
28e5932c7c69: Already exists
81389c423fc3: Already exists
7a1f02c4837e: Already exists
0c7127671838: Already exists
02091381e4bb: Already exists
9992541b54fd: Already exists
Digest: sha256:3c3bde2371ffb0c0755f554d107cb78ed2968bb3f2c6a84ef2337cb6416a0bbb
Status: Downloaded newer image for ocaml/opam@sha256:3c3bde2371ffb0c0755f554d107cb78ed2968bb3f2c6a84ef2337cb6416a0bbb
2026-01-08 10:47.06 ---> saved as "6aa147e92d6cb1eb10df11bc414f83cc5b9fd24b9fc72893594b73b0087d3717"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-08 10:47.06 ---> saved as "d8a4166519c1ead9ffba2c00bbf14f84835db700bf8738c4a139cbaf67fc4207"

/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
2026-01-08 10:47.32 ---> saved as "0fc8aa7244eb5ef0190bb5898e919774d155603b04a2a2088383d6bb904d5df7"

/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       4.10
# invariant            ["ocaml-base-compiler" {= "4.10.2"}]
# compiler-packages    ocaml-base-compiler.4.10.2
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.10/lib/ocaml/stublibs:/home/opam/.opam/4.10/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.10.2
2026-01-08 10:47.33 ---> saved as "d7becdb589021e3ab7ea87ad61eba20c32cb475ddc3c72bcdd926a45b90cd970"

/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/"))
2026-01-08 10:47.41 ---> saved as "61f5e60c2008a26f2382ab4c3f33f88b5ce8ddc224f152b70ae80f6515557032"

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-08 10:47.56 ---> saved as "8e50db4b8ab8f18ef19ad24cf29d983cc1ffb3120d02030192339d8926728a38"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-08 10:48.17 ---> saved as "0ff397532a6876f2772339759f7548dc5d5ae8d14762ee8f8c577ec374443b56"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian trixie InRelease
- 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-security trixie-security/main amd64 Packages [94.5 kB]
- Fetched 185 kB in 0s (1818 kB/s)
- Reading package lists...
- 
2026-01-08 10:48.21 ---> saved as "8f85b8f6b47358d151943e8d1cd769685dc488733e46bc7c8d7b6d9dcfd821f0"

/home/opam: (run (shell "opam pin add -k version -yn canary.0.0.4 0.0.4"))
canary is now pinned to version 0.0.4
2026-01-08 10:48.22 ---> saved as "0d228761a28c29e291f8d080ae3159ffe771ab09d8b95c06e60550d31a404059"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall canary.0.0.4;\
                        \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 \"$pkg\" != 'canary.0.0.4' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
canary.0.0.4 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 72 packages
  - install angstrom            0.16.1         [required by uri]
  - install asn1-combinators    0.2.6          [required by x509]
  - install astring             0.8.5          [required by conduit, ca-certs]
  - install base                v0.15.1        [required by ppx_sexp_conv]
  - install base-bytes          base           [required by ocplib-endian]
  - install base64              3.5.2          [required by cohttp]
  - install bigstringaf         0.10.0         [required by angstrom]
  - install bos                 0.2.1          [required by ca-certs]
  - install ca-certs            0.2.3          [required by conduit-lwt-unix]
  - install canary              0.0.4 (pinned)
  - install cmdliner            2.1.0          [required by cohttp-lwt-unix]
  - install cohttp              6.0.0          [required by canary]
  - install cohttp-lwt          6.0.0          [required by canary]
  - install cohttp-lwt-unix     6.0.0          [required by canary]
  - install conduit             6.2.3          [required by conduit-lwt]
  - install conduit-lwt         6.2.3          [required by cohttp-lwt-unix]
  - install conduit-lwt-unix    6.2.3          [required by cohttp-lwt-unix]
  - install conf-gmp            5              [required by zarith, conf-gmp-powm-sec]
  - install conf-gmp-powm-sec   4              [required by mirage-crypto-pk]
  - install conf-pkg-config     4              [required by zarith]
  - install containers          3.16           [required by canary]
  - install cppo                1.8.0          [required by ppx_deriving]
  - install csexp               1.5.2          [required by dune-configurator]
  - install cstruct             6.2.0          [required by mirage-crypto, x509]
  - install domain-name         0.5.0          [required by ipaddr, x509]
  - install dune                3.20.2         [required by canary]
  - install dune-configurator   3.20.2         [required by containers]
  - install duration            0.2.1          [required by mirage-crypto-rng]
  - install either              1.0.0          [required by containers]
  - install eqaf                0.9            [required by mirage-crypto]
  - install fmt                 0.11.0         [required by cohttp-lwt-unix]
  - install fpath               0.7.3          [required by ca-certs]
  - install gmap                0.3.0          [required by x509]
  - install http                6.0.0          [required by cohttp-lwt, cohttp, cohttp-lwt-unix]
  - install ipaddr              5.6.1          [required by conduit-lwt-unix]
  - install ipaddr-sexp         5.6.1          [required by conduit-lwt-unix]
  - install logs                0.8.0          [required by cohttp-lwt, cohttp, cohttp-lwt-unix]
  - install lwt                 5.9.2          [required by canary]
  - install lwt_ppx             5.9.1          [required by canary]
  - install macaddr             5.6.1          [required by ipaddr]
  - install magic-mime          1.3.1          [required by cohttp-lwt-unix]
  - install mirage-crypto       0.11.3         [required by ca-certs]
  - install mirage-crypto-ec    0.11.3         [required by x509]
  - install mirage-crypto-pk    0.11.3         [required by x509]
  - install mirage-crypto-rng   0.11.3         [required by x509]
  - install num                 1.6            [required by sexplib]
  - install ocaml-compiler-libs v0.12.4        [required by ppxlib]
  - install ocaml-syntax-shims  1.0.0          [required by angstrom]
  - install ocamlbuild          0.16.1         [required by logs]
  - install ocamlfind           1.9.8          [required by logs, ppx_deriving]
  - install ocplib-endian       1.2            [required by lwt]
  - install parsexp             v0.15.0        [required by sexplib]
  - install pbkdf               1.2.0          [required by x509]
  - install ppx_derivers        1.2.1          [required by ppx_deriving]
  - install ppx_deriving        6.0.3          [required by ppx_deriving_yojson]
  - install ppx_deriving_yojson 3.9.1          [required by canary]
  - install ppx_sexp_conv       v0.15.1        [required by cohttp-lwt, cohttp, cohttp-lwt-unix]
  - install ppxlib              0.35.0         [required by lwt_ppx, ppx_deriving_yojson]
  - install ptime               1.2.0          [required by canary]
  - install re                  1.11.0         [required by cohttp]
  - install rresult             0.7.0          [required by bos]
  - install seq                 base           [required by re]
  - install sexplib             v0.15.1        [required by conduit-lwt]
  - install sexplib0            v0.15.1        [required by cohttp, cohttp-lwt]
  - install stdlib-shims        0.3.0          [required by ppxlib]
  - install stringext           1.6.0          [required by cohttp]
  - install topkg               1.1.1          [required by logs]
  - install uri                 4.4.0          [required by cohttp, cohttp-lwt]
  - install uri-sexp            4.4.0          [required by cohttp]
  - install x509                0.16.5         [required by ca-certs]
  - install yojson              3.0.0          [required by canary]
  - install zarith              1.14           [required by asn1-combinators, mirage-crypto-pk]

The following system packages will first need to be installed:
    libgmp-dev pkg-config

<><> 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" "libgmp-dev" "pkg-config"
- Selecting previously unselected package libgmpxx4ldbl:amd64.
- (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 20622 files and directories currently installed.)
- Preparing to unpack .../0-libgmpxx4ldbl_2%3a6.3.0+dfsg-3_amd64.deb ...
- Unpacking libgmpxx4ldbl:amd64 (2:6.3.0+dfsg-3) ...
- Selecting previously unselected package libgmp-dev:amd64.
- Preparing to unpack .../1-libgmp-dev_2%3a6.3.0+dfsg-3_amd64.deb ...
- Unpacking libgmp-dev:amd64 (2:6.3.0+dfsg-3) ...
- Selecting previously unselected package libpkgconf3:amd64.
- Preparing to unpack .../2-libpkgconf3_1.8.1-4_amd64.deb ...
- Unpacking libpkgconf3:amd64 (1.8.1-4) ...
- Selecting previously unselected package pkgconf-bin.
- Preparing to unpack .../3-pkgconf-bin_1.8.1-4_amd64.deb ...
- Unpacking pkgconf-bin (1.8.1-4) ...
- Selecting previously unselected package pkgconf:amd64.
- Preparing to unpack .../4-pkgconf_1.8.1-4_amd64.deb ...
- Unpacking pkgconf:amd64 (1.8.1-4) ...
- Selecting previously unselected package pkg-config:amd64.
- Preparing to unpack .../5-pkg-config_1.8.1-4_amd64.deb ...
- Unpacking pkg-config:amd64 (1.8.1-4) ...
- Setting up libpkgconf3:amd64 (1.8.1-4) ...
- Setting up libgmpxx4ldbl:amd64 (2:6.3.0+dfsg-3) ...
- Setting up pkgconf-bin (1.8.1-4) ...
- Setting up libgmp-dev:amd64 (2:6.3.0+dfsg-3) ...
- Setting up pkgconf:amd64 (1.8.1-4) ...
- Setting up pkg-config:amd64 (1.8.1-4) ...
- Processing triggers for libc-bin (2.41-12) ...

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved angstrom.0.16.1  (cached)
-> retrieved asn1-combinators.0.2.6  (cached)
-> retrieved astring.0.8.5  (cached)
-> retrieved base.v0.15.1  (cached)
-> retrieved base64.3.5.2  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved bos.0.2.1  (cached)
-> retrieved ca-certs.0.2.3  (cached)
-> retrieved canary.0.0.4  (https://github.com/uzh/canary/archive/refs/tags/0.0.4.tar.gz)
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved cohttp.6.0.0, cohttp-lwt.6.0.0, cohttp-lwt-unix.6.0.0, http.6.0.0  (cached)
-> retrieved conduit.6.2.3, conduit-lwt.6.2.3, conduit-lwt-unix.6.2.3  (cached)
-> retrieved conf-gmp.5  (cached)
-> retrieved conf-gmp-powm-sec.4  (cached)
-> installed conf-pkg-config.4
-> installed conf-gmp.5
-> installed conf-gmp-powm-sec.4
-> retrieved containers.3.16  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved cstruct.6.2.0  (cached)
-> retrieved domain-name.0.5.0  (cached)
-> retrieved dune.3.20.2, dune-configurator.3.20.2  (cached)
-> retrieved duration.0.2.1  (cached)
-> retrieved either.1.0.0  (cached)
-> retrieved eqaf.0.9  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved fpath.0.7.3  (cached)
-> retrieved gmap.0.3.0  (cached)
-> retrieved ipaddr.5.6.1, ipaddr-sexp.5.6.1, macaddr.5.6.1  (cached)
-> retrieved logs.0.8.0  (cached)
-> retrieved lwt.5.9.2  (cached)
-> retrieved lwt_ppx.5.9.1  (cached)
-> installed cmdliner.2.1.0
-> retrieved magic-mime.1.3.1  (cached)
-> retrieved mirage-crypto.0.11.3, mirage-crypto-ec.0.11.3, mirage-crypto-pk.0.11.3, mirage-crypto-rng.0.11.3  (cached)
-> retrieved num.1.6  (cached)
-> retrieved ocaml-compiler-libs.v0.12.4  (cached)
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> retrieved parsexp.v0.15.0  (cached)
-> retrieved pbkdf.1.2.0  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppx_deriving.6.0.3  (cached)
-> retrieved ppx_deriving_yojson.3.9.1  (cached)
-> retrieved ppx_sexp_conv.v0.15.1  (cached)
-> retrieved ppxlib.0.35.0  (cached)
-> retrieved ptime.1.2.0  (cached)
-> retrieved re.1.11.0  (cached)
-> retrieved rresult.0.7.0  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved sexplib.v0.15.1  (cached)
-> retrieved sexplib0.v0.15.1  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved stringext.1.6.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved uri.4.4.0, uri-sexp.4.4.0  (cached)
-> retrieved x509.0.16.5  (cached)
-> retrieved yojson.3.0.0  (cached)
-> retrieved zarith.1.14  (cached)
-> installed num.1.6
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed ocamlbuild.0.16.1
-> installed zarith.1.14
-> installed topkg.1.1.1
-> installed rresult.0.7.0
-> installed fmt.0.11.0
-> installed ptime.1.2.0
-> installed astring.0.8.5
-> installed fpath.0.7.3
-> installed dune.3.20.2
-> installed duration.0.2.1
-> installed gmap.0.3.0
-> installed base64.3.5.2
-> installed csexp.1.5.2
-> installed cppo.1.8.0
-> installed cstruct.6.2.0
-> installed domain-name.0.5.0
-> installed either.1.0.0
-> installed http.6.0.0
-> installed macaddr.5.6.1
-> installed magic-mime.1.3.1
-> installed ocaml-compiler-libs.v0.12.4
-> installed ocaml-syntax-shims.1.0.0
-> installed ppx_derivers.1.2.1
-> installed re.1.11.0
-> installed sexplib0.v0.15.1
-> installed stdlib-shims.0.3.0
-> installed stringext.1.6.0
-> installed yojson.3.0.0
-> installed ocplib-endian.1.2
-> installed eqaf.0.9
-> installed asn1-combinators.0.2.6
-> installed ipaddr.5.6.1
-> installed dune-configurator.3.20.2
-> installed bigstringaf.0.10.0
-> installed angstrom.0.16.1
-> installed containers.3.16
-> installed mirage-crypto.0.11.3
-> installed pbkdf.1.2.0
-> installed uri.4.4.0
-> installed lwt.5.9.2
-> installed logs.0.8.0
-> installed mirage-crypto-rng.0.11.3
-> installed mirage-crypto-pk.0.11.3
-> installed base.v0.15.1
-> installed bos.0.2.1
-> installed parsexp.v0.15.0
-> installed sexplib.v0.15.1
-> installed mirage-crypto-ec.0.11.3
-> installed x509.0.16.5
-> installed ca-certs.0.2.3
-> installed ppxlib.0.35.0
-> installed lwt_ppx.5.9.1
-> installed ppx_sexp_conv.v0.15.1
-> installed ppx_deriving.6.0.3
-> installed ipaddr-sexp.5.6.1
-> installed uri-sexp.4.4.0
-> installed ppx_deriving_yojson.3.9.1
-> installed conduit.6.2.3
-> installed cohttp.6.0.0
-> installed conduit-lwt.6.2.3
-> installed cohttp-lwt.6.0.0
-> installed conduit-lwt-unix.6.2.3
-> installed cohttp-lwt-unix.6.0.0
-> installed canary.0.0.4
Done.
# To update the current shell environment, run: eval $(opam env)
2026-01-08 10:50.01 ---> saved as "02a1c7656dbab2f2cb4853f56cb7d2f8c3b97c16a0bc3ef38f8da6b6ffa0f67d"

/home/opam: (env OPAMCRITERIA +removed,+count[version-lag,solution])

/home/opam: (env OPAMFIXUPCRITERIA +removed,+count[version-lag,solution])

/home/opam: (env OPAMUPGRADECRITERIA +removed,+count[version-lag,solution])

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall canary.0.0.4;\
                        \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 \"$pkg\" != 'canary.0.0.4' && partial_fails=\"$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:
=== remove 31 packages
  - remove    angstrom                0.16.1                    [conflicts with dune]
  - remove    asn1-combinators        0.2.6                     [uses cstruct]
  - remove    bigstringaf             0.10.0                    [conflicts with dune]
  - remove    bos                     0.2.1                     [conflicts with astring]
  - remove    ca-certs                0.2.3                     [uses x509]
  - remove    conf-gmp                5
  - remove    conf-gmp-powm-sec       4
  - remove    conf-pkg-config         4
  - remove    csexp                   1.5.2                     [conflicts with dune]
  - remove    cstruct                 6.2.0                     [conflicts with fmt]
  - remove    domain-name             0.5.0                     [conflicts with dune]
  - remove    duration                0.2.1                     [conflicts with dune]
  - remove    either                  1.0.0                     [conflicts with dune]
  - remove    eqaf                    0.9                       [uses cstruct]
  - remove    fpath                   0.7.3                     [conflicts with astring]
  - remove    gmap                    0.3.0                     [conflicts with dune]
  - remove    http                    6.0.0                     [conflicts with dune]
  - remove    ipaddr-sexp             5.6.1                     [conflicts with dune]
  - remove    macaddr                 5.6.1                     [conflicts with dune]
  - remove    mirage-crypto           0.11.3                    [uses cstruct]
  - remove    mirage-crypto-ec        0.11.3                    [uses cstruct]
  - remove    mirage-crypto-pk        0.11.3                    [uses cstruct]
  - remove    mirage-crypto-rng       0.11.3                    [uses cstruct]
  - remove    ocaml-syntax-shims      1.0.0                     [conflicts with dune]
  - remove    ocplib-endian           1.2                       [conflicts with dune]
  - remove    pbkdf                   1.2.0                     [uses cstruct]
  - remove    rresult                 0.7.0                     [conflicts with ocamlbuild]
  - remove    stdlib-shims            0.3.0                     [conflicts with dune]
  - remove    uri-sexp                4.4.0                     [conflicts with dune]
  - remove    x509                    0.16.5                    [conflicts with base64]
  - remove    zarith                  1.14                      [conflicts with ocamlfind]
=== downgrade 39 packages
  - downgrade astring                 0.8.5 to 0.8.3            [upstream or system changes]
  - downgrade base                    v0.15.1 to v0.13.1        [required by fieldslib, ppx_fields_conv]
  - downgrade base64                  3.5.2 to 2.0.0            [required by cohttp]
  - downgrade cmdliner                2.1.0 to 1.0.4            [required by uutf]
  - downgrade cohttp                  6.0.0 to 1.0.0            [required by canary]
  - downgrade cohttp-lwt              6.0.0 to 2.1.3            [required by canary]
  - downgrade cohttp-lwt-unix         6.0.0 to 2.1.3            [required by canary]
  - downgrade conduit                 6.2.3 to 1.3.0            [uses astring]
  - downgrade conduit-lwt             6.2.3 to 1.3.0            [uses dune]
  - downgrade conduit-lwt-unix        6.2.3 to 1.3.0            [uses dune]
  - downgrade containers              3.16 to 2.8               [required by canary]
  - downgrade cppo                    1.8.0 to 1.6.1            [required by lwt]
  - downgrade dune                    3.20.2 to 2.9.3           [required by canary]
  - downgrade dune-configurator       3.20.2 to 2.5.1           [uses dune]
  - downgrade fmt                     0.11.0 to 0.8.5           [upstream or system changes]
  - downgrade ipaddr                  5.6.1 to 2.8.0            [upstream or system changes]
  - downgrade logs                    0.8.0 to 0.7.0            [upstream or system changes]
  - downgrade lwt                     5.9.2 to 4.2.0            [required by canary]
  - downgrade lwt_ppx                 5.9.1 to 1.0.0            [required by canary]
  - downgrade magic-mime              1.3.1 to 1.0.0            [uses ocamlbuild]
  - downgrade num                     1.6 to 1.5                [required by sexplib]
  - downgrade ocaml-compiler-libs     v0.12.4 to v0.11.0        [uses jbuilder]
  - downgrade ocamlbuild              0.16.1 to 0.14.0          [required by base64, jsonm]
  - downgrade ocamlfind               1.9.8 to 1.8.1            [required by base64, jsonm]
  - downgrade parsexp                 v0.15.0 to v0.13.0        [uses dune]
  - downgrade ppx_derivers            1.2.1 to 1.0              [uses jbuilder]
  - downgrade ppx_deriving            6.0.3 to 4.4.1            [uses dune]
  - downgrade ppx_deriving_yojson     3.9.1 to 3.5.2            [required by canary]
  - downgrade ppx_sexp_conv           v0.15.1 to v0.13.0        [required by cohttp]
  - downgrade ppxlib                  0.35.0 to 0.12.0          [required by ppx_fields_conv]
  - downgrade ptime                   1.2.0 to 0.8.5            [required by canary]
  - downgrade re                      1.11.0 to 1.3.0           [required by cohttp]
  - downgrade seq                     base to 0.3               [uses dune]
  - downgrade sexplib                 v0.15.1 to v0.13.0        [required by cohttp]
  - downgrade sexplib0                v0.15.1 to v0.13.0        [uses dune]
  - downgrade stringext               1.6.0 to 1.4.0            [required by cohttp]
  - downgrade topkg                   1.1.1 to 1.0.8            [required by jsonm]
  - downgrade uri                     4.4.0 to 1.9.6            [required by cohttp]
  - downgrade yojson                  3.0.0 to 1.6.0            [required by canary]
=== recompile 2 packages
  - recompile base-bytes              base                      [uses ocamlfind]
  - recompile canary                  0.0.4 (pinned)
=== install 18 packages
  - install   biniou                  1.2.0                     [required by yojson]
  - install   conf-m4                 1                         [required by ocamlfind]
  - install   conf-which              1                         [required by biniou]
  - install   dune-private-libs       2.5.1                     [required by dune-configurator]
  - install   easy-format             1.0.1                     [required by yojson]
  - install   fieldslib               v0.13.0                   [required by cohttp]
  - install   jbuilder                1.0+beta20.1 (deprecated) [required by cohttp]
  - install   jsonm                   1.0.2                     [required by cohttp]
  - install   mmap                    1.0.2                     [required by lwt]
  - install   ocaml-migrate-parsetree 1.5.0 (deprecated)        [required by ipaddr]
  - install   ppx_fields_conv         v0.13.0                   [required by cohttp]
  - install   ppx_tools               6.1+4.10.0                [required by ppx_deriving]
  - install   ppx_tools_versioned     5.2.2                     [required by lwt_ppx]
  - install   ppxfind                 1.1                       [required by ppx_deriving]
  - install   result                  1.5                       [required by fmt]
  - install   stdio                   v0.13.0                   [required by ppxlib]
  - install   uchar                   0.0.2                     [required by fmt]
  - install   uutf                    1.0.3                     [required by jsonm]

The following system packages will first need to be installed:
    m4

<><> 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" "m4"
- Selecting previously unselected package m4.
- (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 20681 files and directories currently installed.)
- Preparing to unpack .../archives/m4_1.4.19-8_amd64.deb ...
- Unpacking m4 (1.4.19-8) ...
- Setting up m4 (1.4.19-8) ...

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved astring.0.8.3  (cached)
-> retrieved base.v0.13.1  (cached)
-> retrieved base64.2.0.0  (https://opam.ocaml.org/cache)
-> retrieved biniou.1.2.0  (cached)
-> retrieved cmdliner.1.0.4  (cached)
-> retrieved cohttp.1.0.0  (https://opam.ocaml.org/cache)
-> retrieved cohttp-lwt.2.1.3, cohttp-lwt-unix.2.1.3  (cached)
-> retrieved conduit.1.3.0, conduit-lwt.1.3.0, conduit-lwt-unix.1.3.0  (cached)
-> retrieved containers.2.8  (cached)
-> installed conf-m4.1
-> installed conf-which.1
-> retrieved cppo.1.6.1  (cached)
-> retrieved dune.2.9.3  (cached)
-> retrieved dune-configurator.2.5.1, dune-private-libs.2.5.1  (cached)
-> retrieved easy-format.1.0.1  (cached)
-> retrieved fieldslib.v0.13.0  (https://opam.ocaml.org/cache)
-> retrieved fmt.0.8.5  (https://opam.ocaml.org/cache)
-> retrieved ipaddr.2.8.0  (https://opam.ocaml.org/cache)
-> retrieved jbuilder.1.0+beta20.1  (cached)
-> retrieved jsonm.1.0.2  (cached)
-> retrieved logs.0.7.0  (cached)
-> retrieved lwt.4.2.0  (cached)
-> retrieved lwt_ppx.1.0.0  (cached)
-> retrieved magic-mime.1.0.0  (cached)
-> retrieved mmap.1.0.2  (cached)
-> retrieved num.1.5  (cached)
-> retrieved ocaml-compiler-libs.v0.11.0  (cached)
-> retrieved ocaml-migrate-parsetree.1.5.0  (https://opam.ocaml.org/cache)
-> retrieved ocamlbuild.0.14.0  (cached)
-> retrieved ocamlfind.1.8.1  (cached)
-> retrieved parsexp.v0.13.0  (cached)
-> retrieved ppx_derivers.1.0  (cached)
-> retrieved ppx_deriving.4.4.1  (https://opam.ocaml.org/cache)
-> retrieved ppx_deriving_yojson.3.5.2  (https://opam.ocaml.org/cache)
-> retrieved ppx_fields_conv.v0.13.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_sexp_conv.v0.13.0  (cached)
-> retrieved ppx_tools.6.1+4.10.0  (https://opam.ocaml.org/cache)
-> retrieved ppx_tools_versioned.5.2.2  (https://opam.ocaml.org/cache)
-> retrieved ppxfind.1.1  (https://opam.ocaml.org/cache)
-> retrieved ppxlib.0.12.0  (cached)
-> retrieved ptime.0.8.5  (cached)
-> retrieved re.1.3.0  (cached)
-> retrieved result.1.5  (cached)
-> retrieved seq.0.3  (cached)
-> retrieved sexplib.v0.13.0  (cached)
-> retrieved sexplib0.v0.13.0  (cached)
-> retrieved stdio.v0.13.0  (cached)
-> retrieved stringext.1.4.0  (cached)
-> retrieved topkg.1.0.8  (cached)
-> retrieved uchar.0.0.2  (cached)
-> retrieved uri.1.9.6  (cached)
-> retrieved uutf.1.0.3  (cached)
-> retrieved yojson.1.6.0  (cached)
-> installed jbuilder.1.0+beta20.1
-> removed   canary.0.0.4
-> removed   cohttp-lwt-unix.6.0.0
-> removed   cohttp-lwt.6.0.0
-> removed   cohttp.6.0.0
-> removed   conduit-lwt-unix.6.2.3
-> removed   ca-certs.0.2.3
-> removed   bos.0.2.1
-> removed   conduit-lwt.6.2.3
-> removed   conduit.6.2.3
-> removed   containers.3.16
-> removed   either.1.0.0
-> removed   fpath.0.7.3
-> removed   astring.0.8.5
-> removed   http.6.0.0
-> removed   ipaddr-sexp.5.6.1
-> removed   lwt_ppx.5.9.1
-> removed   magic-mime.1.3.1
-> removed   ppx_deriving_yojson.3.9.1
-> removed   ppx_deriving.6.0.3
-> removed   re.1.11.0
-> removed   rresult.0.7.0
-> removed   seq.base
-> removed   sexplib.v0.15.1
-> removed   num.1.6
-> removed   parsexp.v0.15.0
-> removed   uri-sexp.4.4.0
-> removed   ppx_sexp_conv.v0.15.1
-> removed   base.v0.15.1
-> removed   ppxlib.0.35.0
-> removed   ocaml-compiler-libs.v0.12.4
-> removed   ppx_derivers.1.2.1
-> removed   stdlib-shims.0.3.0
-> removed   uri.4.4.0
-> removed   angstrom.0.16.1
-> removed   bigstringaf.0.10.0
-> removed   ocaml-syntax-shims.1.0.0
-> removed   stringext.1.6.0
-> removed   x509.0.16.5
-> removed   asn1-combinators.0.2.6
-> removed   base64.3.5.2
-> removed   gmap.0.3.0
-> removed   ipaddr.5.6.1
-> removed   domain-name.0.5.0
-> removed   macaddr.5.6.1
-> removed   mirage-crypto-ec.0.11.3
-> removed   mirage-crypto-pk.0.11.3
-> removed   conf-gmp-powm-sec.4
-> removed   mirage-crypto-rng.0.11.3
-> removed   duration.0.2.1
-> removed   logs.0.8.0
-> removed   lwt.5.9.2
-> removed   ocplib-endian.1.2
-> removed   base-bytes.base
-> removed   cppo.1.8.0
-> removed   pbkdf.1.2.0
-> removed   mirage-crypto.0.11.3
-> removed   dune-configurator.3.20.2
-> removed   csexp.1.5.2
-> removed   eqaf.0.9
-> removed   cstruct.6.2.0
-> removed   fmt.0.11.0
-> removed   cmdliner.2.1.0
-> removed   ptime.1.2.0
-> removed   sexplib0.v0.15.1
-> removed   topkg.1.1.1
-> removed   ocamlbuild.0.16.1
-> removed   yojson.3.0.0
-> removed   dune.3.20.2
-> removed   zarith.1.14
-> removed   conf-gmp.5
-> removed   conf-pkg-config.4
-> removed   ocamlfind.1.9.8
-> installed dune.2.9.3
-> installed num.1.5
-> installed ocaml-compiler-libs.v0.11.0
-> installed ocamlbuild.0.14.0
-> installed ocamlfind.1.8.1
-> installed base-bytes.base
-> installed mmap.1.0.2
-> installed ppx_derivers.1.0
-> installed result.1.5
-> installed seq.0.3
-> installed sexplib0.v0.13.0
-> installed uchar.0.0.2
-> installed cmdliner.1.0.4
-> installed easy-format.1.0.1
-> installed cppo.1.6.1
-> installed biniou.1.2.0
-> installed ppx_tools.6.1+4.10.0
-> installed dune-private-libs.2.5.1
-> installed yojson.1.6.0
-> installed dune-configurator.2.5.1
-> installed lwt.4.2.0
-> installed topkg.1.0.8
-> installed base64.2.0.0
-> installed astring.0.8.3
-> installed containers.2.8
-> installed fmt.0.8.5
-> installed magic-mime.1.0.0
-> installed logs.0.7.0
-> installed ocaml-migrate-parsetree.1.5.0
-> installed ptime.0.8.5
-> installed re.1.3.0
-> installed base.v0.13.1
-> installed ppxfind.1.1
-> installed stringext.1.4.0
-> installed fieldslib.v0.13.0
-> installed parsexp.v0.13.0
-> installed ppx_deriving.4.4.1
-> installed ppx_tools_versioned.5.2.2
-> installed stdio.v0.13.0
-> installed uutf.1.0.3
-> installed sexplib.v0.13.0
-> installed ppx_deriving_yojson.3.5.2
-> installed jsonm.1.0.2
-> installed lwt_ppx.1.0.0
-> installed ppxlib.0.12.0
-> installed ppx_fields_conv.v0.13.0
-> installed ppx_sexp_conv.v0.13.0
-> installed ipaddr.2.8.0
-> installed uri.1.9.6
-> installed cohttp.1.0.0
-> installed conduit.1.3.0
-> installed conduit-lwt.1.3.0
-> installed cohttp-lwt.2.1.3
-> installed conduit-lwt-unix.1.3.0
-> installed cohttp-lwt-unix.2.1.3
[ERROR] The compilation of canary.0.0.4 failed at "dune build -p canary -j 71 --promote-install-files=false @install".

#=== ERROR while compiling canary.0.0.4 =======================================#
# context              2.5.0 | linux/x86_64 | ocaml-base-compiler.4.10.2 | pinned(https://github.com/uzh/canary/archive/refs/tags/0.0.4.tar.gz)
# path                 ~/.opam/4.10/.opam-switch/build/canary.0.0.4
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p canary -j 71 --promote-install-files=false @install
# exit-code            1
# env-file             ~/.opam/log/canary-7-4f5029.env
# output-file          ~/.opam/log/canary-7-4f5029.out
### output ###
# File "/home/opam/.opam/4.10/lib/cohttp/cohttp.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
# File "/home/opam/.opam/4.10/lib/uri/uri.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
# File "/home/opam/.opam/4.10/lib/uri/services/uri.services.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
# File "/home/opam/.opam/4.10/lib/uri/services_full/uri.services_full.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
# File "/home/opam/.opam/4.10/lib/uri/top/uri.top.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
# File "/home/opam/.opam/4.10/lib/ipaddr/ipaddr.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
# File "/home/opam/.opam/4.10/lib/ipaddr/top/ipaddr.top.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
# File "/home/opam/.opam/4.10/lib/ipaddr/unix/ipaddr.unix.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
# File "/home/opam/.opam/4.10/lib/biniou/biniou.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
# File "/home/opam/.opam/4.10/lib/ppx_derivers/ppx_derivers.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
# File "/home/opam/.opam/4.10/lib/lwt_ppx/lwt_ppx.dune", line 1, characters 0-0:
# Warning: .dune files are ignored since 2.0. Reinstall the library with dune
# >= 2.0 to get rid of this warning and enable support for the subsystem this
# library provides.
#          ppx lib/canary.pp.ml (exit 2)
# (cd _build/default && .ppx/69fa5e69d58d8aed1fe049a2e4d0d5c9/ppx.exe --cookie 'library-name="canary"' -o lib/canary.pp.ml --impl lib/canary.ml --dump-ast)
# Fatal error: exception File "lib/canary.ml", line 158, characters 6-10: let operators are not supported before OCaml 4.08
# File "lib/dune", line 16, characters 3-10:
# 16 |    lwt_ppx
#         ^^^^^^^
# Error: Ppx dependency on a non-ppx library "lwt_ppx". If "lwt_ppx" is in fact
# a ppx rewriter library, it should have (kind ppx_rewriter) in its dune file.



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build canary 0.0.4
+- 
+- The following changes have been performed
| - remove    angstrom                0.16.1
| - remove    asn1-combinators        0.2.6
| - remove    bigstringaf             0.10.0
| - remove    bos                     0.2.1
| - remove    ca-certs                0.2.3
| - remove    canary                  0.0.4
| - remove    conf-gmp                5
| - remove    conf-gmp-powm-sec       4
| - remove    conf-pkg-config         4
| - remove    csexp                   1.5.2
| - remove    cstruct                 6.2.0
| - remove    domain-name             0.5.0
| - remove    duration                0.2.1
| - remove    either                  1.0.0
| - remove    eqaf                    0.9
| - remove    fpath                   0.7.3
| - remove    gmap                    0.3.0
| - remove    http                    6.0.0
| - remove    ipaddr-sexp             5.6.1
| - remove    macaddr                 5.6.1
| - remove    mirage-crypto           0.11.3
| - remove    mirage-crypto-ec        0.11.3
| - remove    mirage-crypto-pk        0.11.3
| - remove    mirage-crypto-rng       0.11.3
| - remove    ocaml-syntax-shims      1.0.0
| - remove    ocplib-endian           1.2
| - remove    pbkdf                   1.2.0
| - remove    rresult                 0.7.0
| - remove    stdlib-shims            0.3.0
| - remove    uri-sexp                4.4.0
| - remove    x509                    0.16.5
| - remove    zarith                  1.14
| - downgrade astring                 0.8.5 to 0.8.3
| - downgrade base                    v0.15.1 to v0.13.1
| - downgrade base64                  3.5.2 to 2.0.0
| - downgrade cmdliner                2.1.0 to 1.0.4
| - downgrade cohttp                  6.0.0 to 1.0.0
| - downgrade cohttp-lwt              6.0.0 to 2.1.3
| - downgrade cohttp-lwt-unix         6.0.0 to 2.1.3
| - downgrade conduit                 6.2.3 to 1.3.0
| - downgrade conduit-lwt             6.2.3 to 1.3.0
| - downgrade conduit-lwt-unix        6.2.3 to 1.3.0
| - downgrade containers              3.16 to 2.8
| - downgrade cppo                    1.8.0 to 1.6.1
| - downgrade dune                    3.20.2 to 2.9.3
| - downgrade dune-configurator       3.20.2 to 2.5.1
| - downgrade fmt                     0.11.0 to 0.8.5
| - downgrade ipaddr                  5.6.1 to 2.8.0
| - downgrade logs                    0.8.0 to 0.7.0
| - downgrade lwt                     5.9.2 to 4.2.0
| - downgrade lwt_ppx                 5.9.1 to 1.0.0
| - downgrade magic-mime              1.3.1 to 1.0.0
| - downgrade num                     1.6 to 1.5
| - downgrade ocaml-compiler-libs     v0.12.4 to v0.11.0
| - downgrade ocamlbuild              0.16.1 to 0.14.0
| - downgrade ocamlfind               1.9.8 to 1.8.1
| - downgrade parsexp                 v0.15.0 to v0.13.0
| - downgrade ppx_derivers            1.2.1 to 1.0
| - downgrade ppx_deriving            6.0.3 to 4.4.1
| - downgrade ppx_deriving_yojson     3.9.1 to 3.5.2
| - downgrade ppx_sexp_conv           v0.15.1 to v0.13.0
| - downgrade ppxlib                  0.35.0 to 0.12.0
| - downgrade ptime                   1.2.0 to 0.8.5
| - downgrade re                      1.11.0 to 1.3.0
| - downgrade seq                     base to 0.3
| - downgrade sexplib                 v0.15.1 to v0.13.0
| - downgrade sexplib0                v0.15.1 to v0.13.0
| - downgrade stringext               1.6.0 to 1.4.0
| - downgrade topkg                   1.1.1 to 1.0.8
| - downgrade uri                     4.4.0 to 1.9.6
| - downgrade yojson                  3.0.0 to 1.6.0
| - recompile base-bytes              base
| - install   biniou                  1.2.0
| - install   conf-m4                 1
| - install   conf-which              1
| - install   dune-private-libs       2.5.1
| - install   easy-format             1.0.1
| - install   fieldslib               v0.13.0
| - install   jbuilder                1.0+beta20.1
| - install   jsonm                   1.0.2
| - install   mmap                    1.0.2
| - install   ocaml-migrate-parsetree 1.5.0
| - install   ppx_fields_conv         v0.13.0
| - install   ppx_tools               6.1+4.10.0
| - install   ppx_tools_versioned     5.2.2
| - install   ppxfind                 1.1
| - install   result                  1.5
| - install   stdio                   v0.13.0
| - install   uchar                   0.0.2
| - install   uutf                    1.0.3
+- 

<><> ocaml-migrate-parsetree.1.5.0 installed successfully <><><><><><><><><><><>
=> Note: This package is deprecated.

<><> jbuilder.1.0+beta20.1 installed successfully <><><><><><><><><><><><><><><>
=> Note: This package is deprecated.
# To update the current shell environment, run: eval $(opam env)

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/4.10/.opam-switch/backup/state-20260108105001.export"
Or you can retry to install your package selection with:
    /usr/bin/opam install --restore
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
"/usr/bin/env" "bash" "-c" "opam reinstall canary.0.0.4;
        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 "$pkg" != 'canary.0.0.4' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 1
2026-01-08 10:51.33: Job failed: Failed: Build failed
2026-01-08 10:51.33: Log analysis:
2026-01-08 10:51.33: >>> 
[ERROR] The compilation of canary.0.0.4 failed at "dune build -p canary -j 71 --promote-install-files=false @install".
 (score = 20)
2026-01-08 10:51.33: >>> 
# Fatal error: exception File "lib/canary.ml", line 158, characters 6-10: let operators are not supported before OCaml 4.08
 (score = 35)
2026-01-08 10:51.33: >>> 
# Error: Ppx dependency on a non-ppx library "lwt_ppx". If "lwt_ppx" is in fact
 (score = 48)
2026-01-08 10:51.33: Ppx dependency on a non-ppx library "lwt_ppx". If "lwt_ppx" is in fact