(for PR #27816)

2025-04-24 14:25.38: New job: build core_unix.v0.15.2, using opam 2.3
                              from https://github.com/ocaml/opam-repository.git#refs/pull/27816/head (c45383e45327f17c44cd719eb47697ec7fbff368)
                              on debian-12-ocaml-4.14/s390x

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/27816/head" && git reset --hard c45383e4
git fetch origin master
git merge --no-edit 8106bcf57fc33218275bbf0d02e725f4e9fcd0f6
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-12-ocaml-4.14@sha256:9ed862d496160f59977158932c4175a8fa2143f006b67c539ecaf11253907680
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn core_unix.v0.15.2 v0.15.2
RUN opam reinstall core_unix.v0.15.2; \
    res=$?; \
    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-12\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'core_unix.v0.15.2' && partial_fails="$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 14:25.38: Using cache hint "ocaml/opam:debian-12-ocaml-4.14@sha256:9ed862d496160f59977158932c4175a8fa2143f006b67c539ecaf11253907680-core_unix.v0.15.2-c45383e45327f17c44cd719eb47697ec7fbff368"
2025-04-24 14:25.38: Using OBuilder spec:
((from ocaml/opam:debian-12-ocaml-4.14@sha256:9ed862d496160f59977158932c4175a8fa2143f006b67c539ecaf11253907680)
 (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.v0.15.2 v0.15.2"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall core_unix.v0.15.2;\
             \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-12\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'core_unix.v0.15.2' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-04-24 14:25.38: Waiting for resource in pool OCluster
2025-04-24 14:25.38: Waiting for worker…
2025-04-24 15:28.54: Got resource from pool OCluster
Building on s390x-worker-01.marist.ci.dev
All commits already cached
Updating files:  65% (15008/22939)
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Updating files: 100% (22939/22939), done.
HEAD is now at 8106bcf57f Merge pull request #27808 from Octachron/Ocaml_5.4.0_branching
Updating 8106bcf57f..c45383e453
Fast-forward
 packages/core_unix/core_unix.v0.15.2/opam | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(from ocaml/opam:debian-12-ocaml-4.14@sha256:9ed862d496160f59977158932c4175a8fa2143f006b67c539ecaf11253907680)
Unable to find image 'ocaml/opam:debian-12-ocaml-4.14@sha256:9ed862d496160f59977158932c4175a8fa2143f006b67c539ecaf11253907680' locally
docker.io/ocaml/opam@sha256:9ed862d496160f59977158932c4175a8fa2143f006b67c539ecaf11253907680: Pulling from ocaml/opam
Digest: sha256:9ed862d496160f59977158932c4175a8fa2143f006b67c539ecaf11253907680
Status: Downloaded newer image for ocaml/opam@sha256:9ed862d496160f59977158932c4175a8fa2143f006b67c539ecaf11253907680
2025-04-24 15:29.00 ---> using "97a8a8034700a6fa86587a6fbc95e73d4306bcd28832e7d62d9a3c6c473f2e25" 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 15:29.00 ---> using "354fb5fedc46cd01e65989817d24edd75e23131c80804c6244d341ca000051f3" 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 15:29.00 ---> using "a398a9a3edf44b1c5db1796c6515f8e79fe1fd63553fdc64dd0209135b22d794" 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=s390x os=linux os-distribution=debian os-version=12
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 3
# 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 15:29.00 ---> using "792317481bd2b1ce3b35a2d730178f149d3e9badd9481028fb8a48ed3b8ad111" 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 15:29.00 ---> using "6cceed0269c27a29b1609491d40f2219ce441b8cd200b108c489ab9aebb08c37" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-04-24 15:30.47 ---> saved as "1ed5f638c7f53a20d16b0b7280c1e4958c98bda6d5ba370efb713d2eb3eee9b4"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-04-24 15:32.31 ---> saved as "6376300127fb11cda13d4fe5d940212a1d26a931e556ddb68ee791c152f94311"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian bookworm InRelease
- Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]
- Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
- Fetched 103 kB in 1s (177 kB/s)
- Reading package lists...
- 
2025-04-24 15:32.38 ---> saved as "26f8b83a453a4497cad3cdc19aa7aea6cd27756bd4d96d6f28fd53f67bd0cd8d"

/home/opam: (run (shell "opam pin add -k version -yn core_unix.v0.15.2 v0.15.2"))
core_unix is now pinned to version v0.15.2
2025-04-24 15:32.45 ---> saved as "7ca1265259c6bf6699dfbab02184d5835cb18802f4d67efda6c7b5012d2f2692"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall core_unix.v0.15.2;\
                        \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-12\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'core_unix.v0.15.2' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
core_unix.v0.15.2 is not installed. Install it? [y/n] y
  * Missing dependency:
    - core_unix = v0.15.2 -> ocaml_intrinsics
    unmet availability conditions, e.g. 'arch = "x86_64" & os != "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall core_unix.v0.15.2;
        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-12\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'core_unix.v0.15.2' && partial_fails="$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 15:34.53: Job failed: Failed: Build failed
2025-04-24 15:34.53: Log analysis:
2025-04-24 15:34.53: >>> 
No solution found, exiting
 (score = 100)
2025-04-24 15:34.53: [SKIP] Package not available