(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-testing-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/27814/head" && git reset --hard ff55db32
git fetch origin master
git merge --no-edit 8106bcf57fc33218275bbf0d02e725f4e9fcd0f6
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-testing-ocaml-4.14@sha256:44de1b3f4c8691ff1b2792c89d47bd728039c861a9c704b5152fe2f7623572c4
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn core_unix.v0.17.1 v0.17.1
RUN opam reinstall core_unix.v0.17.1; \
    res=$?; \
    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-testing\""; 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-testing-ocaml-4.14@sha256:44de1b3f4c8691ff1b2792c89d47bd728039c861a9c704b5152fe2f7623572c4-core_unix.v0.17.1-ff55db326db9c2958d536c00557c75e835658f3e"
2025-04-24 14:19.29: Using OBuilder spec:
((from ocaml/opam:debian-testing-ocaml-4.14@sha256:44de1b3f4c8691ff1b2792c89d47bd728039c861a9c704b5152fe2f7623572c4)
 (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-testing\\\"\"; 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 doris.caelum.ci.dev
All commits already cached
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-testing-ocaml-4.14@sha256:44de1b3f4c8691ff1b2792c89d47bd728039c861a9c704b5152fe2f7623572c4)
2025-04-24 14:20.06 ---> saved as "73645d3ae6a61086d1266a6c07f05810e1cc17b489170a30d2de8661ea944054"

/: (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 14:20.06 ---> saved as "45e1d44fd53b6a5f7ab0d2102959f1d3042a3326349ce118a2cbf33b7499dcb4"

/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 14:20.34 ---> saved as "e22d8c235649539fa3a01963d722ee34eead568311052621531ea6a277051918"

/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=unknown
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 255
# 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 14:20.35 ---> saved as "f7fe5e391df83a10d177b2bdfa5a8b22ab5ad69173310bcae4afd76ebd2bdbd3"

/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 14:20.43 ---> saved as "3a364f76cf43b1f938085e85664179e271bcc27408fbfec18883c91af7da9b6d"

/home/opam: (copy (src .) (dst opam-repository/))
2025-04-24 14:20.55 ---> saved as "19783695ec933e5987acb25990a0e46bebad5e4ce3bf3567e8bddd218f028577"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-04-24 14:21.17 ---> saved as "75f57b340d2c5a5dafaf566c5d0b6942a7376f56bcabdaa73cc06559bb852353"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian testing InRelease [175 kB]
- Get:2 http://deb.debian.org/debian testing-updates InRelease [49.6 kB]
- Get:3 http://deb.debian.org/debian-security testing-security InRelease [48.0 kB]
- Get:4 http://deb.debian.org/debian testing/main amd64 Packages.diff/Index [27.9 kB]
- Get:5 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-20-1405.07.pdiff [10.8 kB]
- Get:6 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-21-0204.26.pdiff [29.9 kB]
- Get:7 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-21-2008.04.pdiff [33 B]
- Get:8 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-22-0206.36.pdiff [24.2 kB]
- Get:9 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-22-1408.18.pdiff [224 B]
- Get:10 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-22-2005.55.pdiff [1512 B]
- Get:11 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-23-0840.47.pdiff [48.3 kB]
- Get:12 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-23-1406.22.pdiff [355 B]
- Get:13 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-23-2014.20.pdiff [4211 B]
- Get:14 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-24-0213.11.pdiff [24.3 kB]
- Get:14 http://deb.debian.org/debian testing/main amd64 Packages 2025-04-24-0213.11.pdiff [24.3 kB]
- Fetched 445 kB in 1s (623 kB/s)
- Reading package lists...
- 
2025-04-24 14:21.19 ---> saved as "2b31cb0c2430b654d05e74dc160207603316e71d54f4393fcb6c0a5820e413ae"

/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 14:21.20 ---> saved as "71cc20ad74bd1c8d5a891d95dffbd46cf1d94b1e5eb655b959b2605383f707a5"

/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-testing\\\"\"; 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 >= 5.1.0~
  * Missing dependency:
    - core_unix >= v0.17.1 -> ocaml >= 5.1.0 -> ocaml-variants >= 5.1.0~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

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-testing\""; 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 14:21.33: Job failed: Failed: Build failed
2025-04-24 14:21.33: Log analysis:
2025-04-24 14:21.33: >>> 
No solution found, exiting
 (score = 100)
2025-04-24 14:21.33: [SKIP] Package not available