(for PR #28866)

2025-11-13 23:39.37: New job: build melange.6.0.0-53, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28866/head (780331e30462ca6bc8d8e82d472fe1019e01770d)
                              on centos-10-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28866/head" && git reset --hard 780331e3
git fetch origin master
git merge --no-edit 48c9f6e789883c3dbb4ff03be0529c4936e40316
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-10-ocaml-4.14@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn melange.6.0.0-53 6.0.0-53
RUN opam reinstall melange.6.0.0-53; \
    res=$?; \
    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-10\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'melange.6.0.0-53' && partial_fails="$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 .

2025-11-13 23:39.37: Using cache hint "ocaml/opam:centos-10-ocaml-4.14@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee-melange.6.0.0-53-780331e30462ca6bc8d8e82d472fe1019e01770d"
2025-11-13 23:39.37: Using OBuilder spec:
((from ocaml/opam:centos-10-ocaml-4.14@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee)
 (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 melange.6.0.0-53 6.0.0-53"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall melange.6.0.0-53;\
             \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-10\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'melange.6.0.0-53' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-11-13 23:39.37: Waiting for resource in pool OCluster
2025-11-13 23:39.37: Waiting for worker…
2025-11-13 23:39.37: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at 48c9f6e789 Merge pull request #28889 from jserot/opam-publish-rfsm.2.2
Merge made by the 'ort' strategy.
 packages/melange/melange.6.0.0-414/opam | 41 +++++++++++++++++++++++++++++++++
 packages/melange/melange.6.0.0-51/opam  | 41 +++++++++++++++++++++++++++++++++
 packages/melange/melange.6.0.0-52/opam  | 41 +++++++++++++++++++++++++++++++++
 packages/melange/melange.6.0.0-53/opam  | 41 +++++++++++++++++++++++++++++++++
 packages/melange/melange.6.0.0-54/opam  | 41 +++++++++++++++++++++++++++++++++
 5 files changed, 205 insertions(+)
 create mode 100644 packages/melange/melange.6.0.0-414/opam
 create mode 100644 packages/melange/melange.6.0.0-51/opam
 create mode 100644 packages/melange/melange.6.0.0-52/opam
 create mode 100644 packages/melange/melange.6.0.0-53/opam
 create mode 100644 packages/melange/melange.6.0.0-54/opam

(from ocaml/opam:centos-10-ocaml-4.14@sha256:fbd3acc40df623aa04dc83f78636b758424838e33c013f55a0091d21c5ccabee)
2025-11-13 23:40.33 ---> using "678d307669327213b6763ac40b1491a2e7a9cc6da26aa808af111b437f4523f5" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-11-13 23:40.33 ---> using "8bb645a837c0d3f0550ae1ace6d146fe6111dfb1b58164879ab7b107f0c8c6e5" 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.

[NOTE] The 'jobs' option was reset, its value was 71 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:
           opam option jobs=71 --global
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2025-11-13 23:40.33 ---> using "ed80958a0904ff4b783a1724d1854b9c783c42b9df12bf5ce77cf7bdbfcf3e83" 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~alpha1
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=centos os-version=10
# 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
2025-11-13 23:40.33 ---> using "83ce7712ec013bdbb6c67926ff90ed73113d64066faaf67e126818b0f5f688dc" 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/"))
2025-11-13 23:40.33 ---> using "18e737f6f42a4acfe29bc8b92802b570f517f99552e813a8e7eab21c1e3da971" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-11-13 23:40.36 ---> saved as "5198bc072290aafe7257ba6134ce0227f4ed82a459559197fb25ee304f5d3b5d"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-11-13 23:40.55 ---> saved as "77de9839a4cd58dc001b8cf5c190b55c87005acd689dfff07f4c0458a4fa4338"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 10 - BaseOS                        38 kB/s |  14 kB     00:00    
- CentOS Stream 10 - BaseOS                        12 MB/s | 6.8 MB     00:00    
- CentOS Stream 10 - AppStream                    143 kB/s |  15 kB     00:00    
- CentOS Stream 10 - AppStream                    4.2 MB/s | 3.4 MB     00:00    
- CentOS Stream 10 - CRB                          146 kB/s |  14 kB     00:00    
- CentOS Stream 10 - CRB                          2.3 MB/s | 761 kB     00:00    
- CentOS Stream 10 - Extras packages              174 kB/s |  16 kB     00:00    
- Metadata cache created.
2025-11-13 23:41.01 ---> saved as "4639d8d838c80c0fff919f69cab3f62efc52be9c7094a156280757e1be59d38a"

/home/opam: (run (shell "opam pin add -k version -yn melange.6.0.0-53 6.0.0-53"))
melange is now pinned to version 6.0.0-53
2025-11-13 23:41.04 ---> saved as "595e9f689870e05f98e1227b3bcc5ffbfb104b2601848269862b616161dd0063"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall melange.6.0.0-53;\
                        \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-10\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'melange.6.0.0-53' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
melange.6.0.0-53 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
    - melange = 6.0.0-53 -> ocaml >= 5.3
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - melange = 6.0.0-53 -> ocaml >= 5.3 -> ocaml-variants >= 5.5.0~

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall melange.6.0.0-53;
        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-10\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'melange.6.0.0-53' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-11-13 23:41.50: Job failed: Failed: Build failed
2025-11-13 23:41.50: Log analysis:
2025-11-13 23:41.50: >>> 
No solution found, exiting
 (score = 100)
2025-11-13 23:41.50: [SKIP] Package not available