(for PR #27814)

2025-04-24 14:19.29: New job: build core_unix.v0.17.1, using opam 2.3
                              from https://github.com/ocaml/opam-repository.git#refs/pull/27814/head (ff55db326db9c2958d536c00557c75e835658f3e)
                              on debian-11-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/27814/head" && git reset --hard ff55db32
git fetch origin master
git merge --no-edit 8106bcf57fc33218275bbf0d02e725f4e9fcd0f6
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-11-ocaml-4.14@sha256:c3caa20ce3c53f9a3c70ebdbfe40e1cc479a101942defb1b43124a18a34c06cb
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn core_unix.v0.17.1 v0.17.1
RUN opam reinstall core_unix.v0.17.1; \
    res=$?; \
    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 "\"debian-11\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'core_unix.v0.17.1' && partial_fails="$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 .

2025-04-24 14:19.29: Using cache hint "ocaml/opam:debian-11-ocaml-4.14@sha256:c3caa20ce3c53f9a3c70ebdbfe40e1cc479a101942defb1b43124a18a34c06cb-core_unix.v0.17.1-ff55db326db9c2958d536c00557c75e835658f3e"
2025-04-24 14:19.29: Using OBuilder spec:
((from ocaml/opam:debian-11-ocaml-4.14@sha256:c3caa20ce3c53f9a3c70ebdbfe40e1cc479a101942defb1b43124a18a34c06cb)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.3 /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 core_unix.v0.17.1 v0.17.1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall core_unix.v0.17.1;\
             \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 \"\\\"debian-11\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'core_unix.v0.17.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-04-24 14:19.29: Waiting for resource in pool OCluster
2025-04-24 14:19.29: Waiting for worker…
2025-04-24 14:19.29: Got resource from pool OCluster
Building on x86-bm-c6.sw.ocaml.org
All commits already cached
Updating files:  76% (17610/22939)
Updating files:  77% (17664/22939)
Updating files:  78% (17893/22939)
Updating files:  79% (18122/22939)
Updating files:  80% (18352/22939)
Updating files:  81% (18581/22939)
Updating files:  82% (18810/22939)
Updating files:  83% (19040/22939)
Updating files:  84% (19269/22939)
Updating files:  85% (19499/22939)
Updating files:  86% (19728/22939)
Updating files:  87% (19957/22939)
Updating files:  88% (20187/22939)
Updating files:  89% (20416/22939)
Updating files:  90% (20646/22939)
Updating files:  91% (20875/22939)
Updating files:  92% (21104/22939)
Updating files:  93% (21334/22939)
Updating files:  94% (21563/22939)
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Updating files:  96% (22022/22939)
Updating files:  97% (22251/22939)
Updating files:  98% (22481/22939)
Updating files:  99% (22710/22939)
Updating files: 100% (22939/22939)
Updating files: 100% (22939/22939), done.
HEAD is now at 8106bcf57f Merge pull request #27808 from Octachron/Ocaml_5.4.0_branching
Updating 8106bcf57f..ff55db326d
Fast-forward
 packages/core_unix/core_unix.v0.17.1/opam | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(from ocaml/opam:debian-11-ocaml-4.14@sha256:c3caa20ce3c53f9a3c70ebdbfe40e1cc479a101942defb1b43124a18a34c06cb)
Unable to find image 'ocaml/opam:debian-11-ocaml-4.14@sha256:c3caa20ce3c53f9a3c70ebdbfe40e1cc479a101942defb1b43124a18a34c06cb' locally
docker.io/ocaml/opam@sha256:c3caa20ce3c53f9a3c70ebdbfe40e1cc479a101942defb1b43124a18a34c06cb: Pulling from ocaml/opam
37a0c3dbd30a: Pulling fs layer
37a0c3dbd30a: Verifying Checksum
37a0c3dbd30a: Download complete
37a0c3dbd30a: Pull complete
Digest: sha256:c3caa20ce3c53f9a3c70ebdbfe40e1cc479a101942defb1b43124a18a34c06cb
Status: Downloaded newer image for ocaml/opam@sha256:c3caa20ce3c53f9a3c70ebdbfe40e1cc479a101942defb1b43124a18a34c06cb
2025-04-24 14:19.55 ---> using "a0843ca41009ba9fe1f4a44dc854e7fd033b9eab95cdc657153f785c4a09d238" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
2025-04-24 14:19.55 ---> using "774481a54c4dbab778e26f33037c2568ed04a371bd01b6740c9358aa53f78d4a" 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 development 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
2025-04-24 14:19.55 ---> using "ebf4ffc6ba9a1a547ba8ae12b3e8ee57bd071afebd8dae84131746222f6d9177" 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         2.3.0 (35acd0c5abc5e66cdbd5be16ba77aa6c33a4c724)
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=11
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 31
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.14
# invariant            ["ocaml-base-compiler" {= "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       /home/opam/.opam/4.14/lib/ocaml/stublibs:/home/opam/.opam/4.14/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.14.2
2025-04-24 14:19.55 ---> using "15ad5952842b28e392ab999dd69beffcb1ae4cc7d1406ec89e0db3e38e3a894e" 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/"))
2025-04-24 14:19.55 ---> using "14296496749751e62a209b6f7d1590d3b426e555383897264fcb38d663abd48f" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-04-24 14:20.02 ---> saved as "26efe702fff73172f49ceed3967bab72eba4ea8866a591a0697a26623f289f3d"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-04-24 14:20.25 ---> saved as "71a52a611370bf76b643c90d377c7ad64019e50e720e9cc2eba976a5c0d0083e"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian bullseye InRelease
- Get:2 http://deb.debian.org/debian-security bullseye-security InRelease [27.1 kB]
- Get:3 http://deb.debian.org/debian bullseye-updates InRelease [44.1 kB]
- Get:4 http://deb.debian.org/debian-security bullseye-security/main amd64 Packages [362 kB]
- Fetched 434 kB in 0s (1163 kB/s)
- Reading package lists...
- 
2025-04-24 14:20.26 ---> saved as "04f0ccbc5d486d05ad61bd27c6cb4a587f11f67f9059c2099ae8457bdd18e35f"

/home/opam: (run (shell "opam pin add -k version -yn core_unix.v0.17.1 v0.17.1"))
core_unix is now pinned to version v0.17.1
2025-04-24 14:20.27 ---> saved as "741ac0ba089a718a685757da1db8a7aa73fe8b70884cdadf729393811120493f"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall core_unix.v0.17.1;\
                        \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 \"\\\"debian-11\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'core_unix.v0.17.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
core_unix.v0.17.1 is not installed. Install it? [y/n] y
  * No agreement on the version of ocaml:
    - (invariant) -> ocaml-base-compiler = 4.14.2 -> ocaml = 4.14.2
    - core_unix >= v0.17.1 -> ocaml >= 5.1.0
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - core_unix >= v0.17.1 -> ocaml >= 5.1.0 -> ocaml-variants >= 5.3.1~

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall core_unix.v0.17.1;
        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 "\"debian-11\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'core_unix.v0.17.1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-04-24 14:20.43: Job failed: Failed: Build failed
2025-04-24 14:20.43: Log analysis:
2025-04-24 14:20.43: >>> 
No solution found, exiting
 (score = 100)
2025-04-24 14:20.43: [SKIP] Package not available