(not at the head of any monitored branch or PR)
2026-04-08 03:59.27: New job: build stdcompat.18, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29667/head (3ff349ae2cd8702ef7a5124f6b5cdbaaf3350d51)
                              on debian-13-ocaml-5.4/s390x

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29667/head" && git reset --hard 3ff349ae
git fetch origin master
git merge --no-edit 67472cd54293d750a62d6d4423024d55f77268b0
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:71abdbb2737cf7511872fc835ed2bb56ae643155123dad367d7a0ed846867fbd
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn stdcompat.18 18
RUN opam reinstall stdcompat.18; \
    res=$?; \
    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 "$pkg" != 'stdcompat.18' && partial_fails="$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 .

2026-04-08 03:59.27: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:71abdbb2737cf7511872fc835ed2bb56ae643155123dad367d7a0ed846867fbd-stdcompat.18-3ff349ae2cd8702ef7a5124f6b5cdbaaf3350d51"
2026-04-08 03:59.27: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:71abdbb2737cf7511872fc835ed2bb56ae643155123dad367d7a0ed846867fbd)
 (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 stdcompat.18 18"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall stdcompat.18;\
             \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 \"$pkg\" != 'stdcompat.18' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-04-08 03:59.27: Waiting for resource in pool OCluster
2026-04-08 03:59.31: Waiting for worker…
2026-04-08 04:24.17: Got resource from pool OCluster
Building on s390x-worker-01.marist.ci.dev
All commits already cached
HEAD is now at 67472cd542 Merge pull request #29652 from RyanGibb/master
Updating 67472cd542..3ff349ae2c
Fast-forward
 packages/stdcompat/stdcompat.0/opam    | 2 +-
 packages/stdcompat/stdcompat.1/opam    | 2 +-
 packages/stdcompat/stdcompat.15/opam   | 2 +-
 packages/stdcompat/stdcompat.16/opam   | 2 +-
 packages/stdcompat/stdcompat.17/opam   | 2 +-
 packages/stdcompat/stdcompat.18/opam   | 2 +-
 packages/stdcompat/stdcompat.19/opam   | 2 +-
 packages/stdcompat/stdcompat.20.0/opam | 2 +-
 packages/stdcompat/stdcompat.20.1/opam | 2 +-
 packages/stdcompat/stdcompat.21.0/opam | 2 +-
 packages/stdcompat/stdcompat.21.1/opam | 2 +-
 11 files changed, 11 insertions(+), 11 deletions(-)

(from ocaml/opam:debian-13-ocaml-5.4@sha256:71abdbb2737cf7511872fc835ed2bb56ae643155123dad367d7a0ed846867fbd)
Unable to find image 'ocaml/opam:debian-13-ocaml-5.4@sha256:71abdbb2737cf7511872fc835ed2bb56ae643155123dad367d7a0ed846867fbd' locally
docker.io/ocaml/opam@sha256:71abdbb2737cf7511872fc835ed2bb56ae643155123dad367d7a0ed846867fbd: Pulling from ocaml/opam
7bc76783a615: Already exists
8dbcd3a4e722: Pulling fs layer
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cf83fa403235: Waiting
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ab2a9e5f86ae: Waiting
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5e46081967ba: Download complete
8dbcd3a4e722: Verifying Checksum
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cf83fa403235: Verifying Checksum
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Digest: sha256:71abdbb2737cf7511872fc835ed2bb56ae643155123dad367d7a0ed846867fbd
Status: Downloaded newer image for ocaml/opam@sha256:71abdbb2737cf7511872fc835ed2bb56ae643155123dad367d7a0ed846867fbd
2026-04-08 04:24.19 ---> using "c7da1d637bdea3d5702632657cc051b516a9e858045093b83141e185996d5b65" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-04-08 04:24.19 ---> using "9fb1b858723bf20508eec14f738193fe7d63d4d77698bd9fe4789fabaf60cfe4" 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.

Continue? [Y/n] y
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.

Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-04-08 04:24.19 ---> using "af0ef33e55139d77af0e7859c3b265d08fa02d245294a695a4648ac8d271e4f4" 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         2.5.0
# self-upgrade         no
# system               arch=s390x 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                 3
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       5.4
# invariant            ["ocaml-base-compiler" {= "5.4.1"}]
# compiler-packages    ocaml-base-compiler.5.4.1, ocaml-compiler.5.4.1, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.4/lib/ocaml/stublibs:/home/opam/.opam/5.4/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.1
2026-04-08 04:24.19 ---> using "64e5ad8761a87f2f0628558698e5221c7b03e2a4280631492d0e06817525f0cc" 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/"))
2026-04-08 04:24.19 ---> using "934b7fc7b7c056e5dcea33f937d8de1e809e69becfbdba124fa213a96e5129bf" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-04-08 04:24.19 ---> using "6b398d1d165a15a375d514f12286de3cd5f3f14ae052ee75cfaca585b49584f9" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-04-08 04:24.19 ---> using "2e285c37743bcd17af1d64fedc166ecd0071fe8acdca327a9e65bc6b91295169" from cache

/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 s390x Packages [112 kB]
- Fetched 203 kB in 0s (1198 kB/s)
- Reading package lists...
2026-04-08 04:24.19 ---> using "e4c68639e21b4da9bb522015b967bc8618c573955eedc8bc2503bc72350c660f" from cache

/home/opam: (run (shell "opam pin add -k version -yn stdcompat.18 18"))
stdcompat is now pinned to version 18
2026-04-08 04:24.26 ---> saved as "2e4483e3ecded747bb71f186f58d56842dc4029646c53b09ac8bf06b9bb62994"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall stdcompat.18;\
                        \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 \"$pkg\" != 'stdcompat.18' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
stdcompat.18 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 5.4.1
    - stdcompat = 18 -> ocaml < 5.0 -> ocaml-variants
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - stdcompat = 18 -> ocaml < 5.0 -> ocaml-base-compiler (<= 3.07+1 | = 3.07+2 | = 3.08.0 | = 3.08.1 | = 3.08.2 | = 3.08.3 | = 3.08.4 | = 3.09.0) | ocaml-system (<= 3.07+1 | = 3.07+2 | >= 3.08.0) | ocaml-variants < 3.09.1~
    not available because the package is pinned to version 5.4.1
    unmet availability conditions, e.g. 'sys-ocaml-version = "5.4.1" & (os != "win32" | sys-ocaml-libc = "msvc")'
    no matching version
  * Missing dependency:
    - stdcompat = 18 -> ocaml < 5.0 -> ocaml-variants -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - stdcompat = 18 -> ocaml < 5.0 -> ocaml-variants -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall stdcompat.18;
        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 "$pkg" != 'stdcompat.18' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-04-08 04:24.39: Job failed: Failed: Build failed
2026-04-08 04:24.39: Log analysis:
2026-04-08 04:24.39: >>> 
No solution found, exiting
 (score = 100)
2026-04-08 04:24.39: [SKIP] Package not available