(not at the head of any monitored branch or PR)
2026-04-08 03:59.26: New job: build stdcompat.20.1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29667/head (3ff349ae2cd8702ef7a5124f6b5cdbaaf3350d51)
                              on centos-9-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29667/head" && git reset --hard 3ff349ae
git fetch origin master
git merge --no-edit 67472cd54293d750a62d6d4423024d55f77268b0
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-9-ocaml-4.14@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn stdcompat.20.1 20.1
RUN opam reinstall stdcompat.20.1; \
    res=$?; \
    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 "\"centos-9\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'stdcompat.20.1' && partial_fails="$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 .

2026-04-08 03:59.26: Using cache hint "ocaml/opam:centos-9-ocaml-4.14@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d-stdcompat.20.1-3ff349ae2cd8702ef7a5124f6b5cdbaaf3350d51"
2026-04-08 03:59.26: Using OBuilder spec:
((from ocaml/opam:centos-9-ocaml-4.14@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d)
 (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.20.1 20.1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall stdcompat.20.1;\
             \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 \"\\\"centos-9\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'stdcompat.20.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-04-08 03:59.26: Waiting for resource in pool OCluster
2026-04-08 04:15.30: Waiting for worker…
2026-04-08 04:17.05: Got resource from pool OCluster
Building on eumache.caelum.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:centos-9-ocaml-4.14@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d)
Unable to find image 'ocaml/opam:centos-9-ocaml-4.14@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d' locally
docker.io/ocaml/opam@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d: Pulling from ocaml/opam
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Digest: sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d
Status: Downloaded newer image for ocaml/opam@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d
2026-04-08 04:17.29 ---> using "c12e2683b1b7ccfd4c3fbeab718f9187e348fe216065f1494d2140dffddc01a2" 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 04:17.29 ---> using "65280ae944a3d789bae6518b368f1a8da0d261ce83bde3bd2773b24ed5890349" 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 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
2026-04-08 04:17.29 ---> using "007fe2a6ea8fcb5134e6a455038f453f7754a6e2eff6e9c589467dbeb25d6310" 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=x86_64 os=linux os-distribution=centos os-version=9
# 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       4.14
# invariant            ["ocaml-base-compiler" {= "4.14.3"}]
# compiler-packages    ocaml-base-compiler.4.14.3, 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       4.14.3
2026-04-08 04:17.29 ---> using "6ea348567818f3efd15ff5914a3401c33c88366492ac7386bd5ac8f5a9d132b4" 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 04:17.29 ---> using "0876e5deec9e4a9f153239abfebbb2b346abbfef9264a5b4b6f414be496cc668" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-04-08 04:17.31 ---> saved as "e0425e01513654908030b7e7459b61a347ec44b8d3872939466f8e250dfa3208"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-04-08 04:17.49 ---> saved as "32161ab3fa973b4463752d8fc574f0dbfc34d969186ce11cb34fa81e07cda8dc"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 9 - BaseOS                         68 kB/s | 9.5 kB     00:00    
- CentOS Stream 9 - BaseOS                         13 MB/s | 8.9 MB     00:00    
- CentOS Stream 9 - AppStream                      74 kB/s |  10 kB     00:00    
- CentOS Stream 9 - AppStream                      15 MB/s |  27 MB     00:01    
- CentOS Stream 9 - CRB                            72 kB/s | 9.3 kB     00:00    
- CentOS Stream 9 - CRB                            10 MB/s | 8.0 MB     00:00    
- CentOS Stream 9 - Extras packages               117 kB/s |  16 kB     00:00    
- Metadata cache created.
2026-04-08 04:18.06 ---> saved as "8c185f6ece310f417a81766f02acb0fe4ff9a82267f79ec06851b177df4ebf33"

/home/opam: (run (shell "opam pin add -k version -yn stdcompat.20.1 20.1"))
stdcompat is now pinned to version 20.1
2026-04-08 04:18.06 ---> saved as "090a7c717b9ec97cfbe271d711181bc84096026f10a571ee3cb323d576fb6e9f"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall stdcompat.20.1;\
                        \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 \"\\\"centos-9\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'stdcompat.20.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
stdcompat.20.1 is not installed. Install it? [Y/n] y
  * No agreement on the version of ocaml:
    - (invariant) -> ocaml-base-compiler = 4.14.3 -> ocaml = 4.14.3
    - stdcompat = 20.1 -> ocaml != 4.14.3
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.3
    - stdcompat = 20.1 -> ocaml != 4.14.3 -> ocaml-variants (< 4.05.2~ | >= 4.06.1)
  * Missing dependency:
    - stdcompat = 20.1 -> ocaml != 4.14.3 -> 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 4.14.3
    unmet availability conditions, e.g. 'sys-ocaml-version = "5.4.1" & (os != "win32" | sys-ocaml-libc = "msvc")'
    no matching version
  * Missing dependency:
    - stdcompat = 20.1 -> ocaml != 4.14.3 -> ocaml-variants >= 4.06.1 -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - stdcompat = 20.1 -> ocaml != 4.14.3 -> ocaml-variants >= 4.06.1 -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall stdcompat.20.1;
        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 "\"centos-9\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'stdcompat.20.1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-04-08 04:18.24: Job failed: Failed: Build failed
2026-04-08 04:18.24: Log analysis:
2026-04-08 04:18.24: >>> 
No solution found, exiting
 (score = 100)
2026-04-08 04:18.24: [SKIP] Package not available