(not at the head of any monitored branch or PR)
2025-11-30 20:45.57: New job: build melange.6.0.1-54, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29001/head (f552a18f416e36738eee28c6bf79045fd1a926dd)
                              on debian-13-ocaml-4.14/s390x

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29001/head" && git reset --hard f552a18f
git fetch origin master
git merge --no-edit 1808b67a60cee484a3c5ff1a64046c0e5f0406a5
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14@sha256:66b46de7d998857f11e51effd9454f4369a12f2f1a5e54738fc247031b3d0f9e
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn melange.6.0.1-54 6.0.1-54
RUN opam reinstall melange.6.0.1-54; \
    res=$?; \
    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 "$pkg" != 'melange.6.0.1-54' && partial_fails="$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 .

2025-11-30 20:45.57: Using cache hint "ocaml/opam:debian-13-ocaml-4.14@sha256:66b46de7d998857f11e51effd9454f4369a12f2f1a5e54738fc247031b3d0f9e-melange.6.0.1-54-f552a18f416e36738eee28c6bf79045fd1a926dd"
2025-11-30 20:45.57: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14@sha256:66b46de7d998857f11e51effd9454f4369a12f2f1a5e54738fc247031b3d0f9e)
 (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.6.0.1-54 6.0.1-54"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall melange.6.0.1-54;\
             \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 \"$pkg\" != 'melange.6.0.1-54' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-11-30 20:45.57: Waiting for resource in pool OCluster
2025-11-30 20:45.58: Waiting for worker…
2025-11-30 21:07.01: Got resource from pool OCluster
Building on s390x-worker-01.marist.ci.dev
All commits already cached
Updating files:  83% (15801/18941)
Updating files:  84% (15911/18941)
Updating files:  85% (16100/18941)
Updating files:  86% (16290/18941)
Updating files:  87% (16479/18941)
Updating files:  88% (16669/18941)
Updating files:  89% (16858/18941)
Updating files:  90% (17047/18941)
Updating files:  91% (17237/18941)
Updating files:  92% (17426/18941)
Updating files:  93% (17616/18941)
Updating files:  94% (17805/18941)
Updating files:  95% (17994/18941)
Updating files:  96% (18184/18941)
Updating files:  97% (18373/18941)
Updating files:  98% (18563/18941)
Updating files:  99% (18752/18941)
Updating files: 100% (18941/18941)
Updating files: 100% (18941/18941), done.
HEAD is now at 1808b67a60 Merge pull request #28997 from dinosaure/release-hxd-v0.3.6
Updating 1808b67a60..f552a18f41
Fast-forward
 packages/melange/melange.6.0.1-414/opam | 42 +++++++++++++++++++++++++++++++++
 packages/melange/melange.6.0.1-51/opam  | 42 +++++++++++++++++++++++++++++++++
 packages/melange/melange.6.0.1-52/opam  | 42 +++++++++++++++++++++++++++++++++
 packages/melange/melange.6.0.1-53/opam  | 42 +++++++++++++++++++++++++++++++++
 packages/melange/melange.6.0.1-54/opam  | 42 +++++++++++++++++++++++++++++++++
 5 files changed, 210 insertions(+)
 create mode 100644 packages/melange/melange.6.0.1-414/opam
 create mode 100644 packages/melange/melange.6.0.1-51/opam
 create mode 100644 packages/melange/melange.6.0.1-52/opam
 create mode 100644 packages/melange/melange.6.0.1-53/opam
 create mode 100644 packages/melange/melange.6.0.1-54/opam

(from ocaml/opam:debian-13-ocaml-4.14@sha256:66b46de7d998857f11e51effd9454f4369a12f2f1a5e54738fc247031b3d0f9e)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.14@sha256:66b46de7d998857f11e51effd9454f4369a12f2f1a5e54738fc247031b3d0f9e' locally
docker.io/ocaml/opam@sha256:66b46de7d998857f11e51effd9454f4369a12f2f1a5e54738fc247031b3d0f9e: Pulling from ocaml/opam
Digest: sha256:66b46de7d998857f11e51effd9454f4369a12f2f1a5e54738fc247031b3d0f9e
Status: Downloaded newer image for ocaml/opam@sha256:66b46de7d998857f11e51effd9454f4369a12f2f1a5e54738fc247031b3d0f9e
2025-11-30 21:07.04 ---> using "49d6fe76abe5c961e0c8f5c702534656e45fcd8717383277bae6b89b3dde2218" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-11-30 21:07.04 ---> using "ea5eff990619afc594469134dcad9e052d96a6b5bfc97f850fd53042b5e64d0b" 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
2025-11-30 21:07.04 ---> using "dfee6a32d715816c2d0d1e56a5ad84bc5b8051bd546d6de65f27f036cc0b31ce" 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~beta1
# 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       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
2025-11-30 21:07.04 ---> using "78b35ed004704d02801a37eb0b7645484f938cf3bf1dba80c1ed66946a30d09a" 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/"))
2025-11-30 21:07.04 ---> using "540ffde70c6a58e432d3dae617294a4bdca37fcf2280c610258b363bd1ca5aab" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-11-30 21:07.05 ---> using "3798905c215be9093b19c33b31784b17d72b6f864bdddabd478ff1c64b80e5c4" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-11-30 21:07.05 ---> using "3d7e2bbcb366c56d2675b930dcea3b634b09fafb0cc4e66e2d19d3b23b83a4c0" from cache

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian trixie InRelease [140 kB]
- 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 trixie/main s390x Packages [9322 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main s390x Packages [70.1 kB]
- Fetched 9623 kB in 2s (5715 kB/s)
- Reading package lists...
2025-11-30 21:07.05 ---> using "71dbf7fd7137c448d347df82b0901999b9921c51a8ac663b6f2fd0d327a2ce46" from cache

/home/opam: (run (shell "opam pin add -k version -yn melange.6.0.1-54 6.0.1-54"))
melange is now pinned to version 6.0.1-54
2025-11-30 21:07.49 ---> saved as "b380bf746cf5a4b81df8f675b848f61fcc730e97dbc59bcec991903cdbc24a4d"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall melange.6.0.1-54;\
                        \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 \"$pkg\" != 'melange.6.0.1-54' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
melange.6.0.1-54 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 = 6.0.1-54 -> ocaml >= 5.4
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - melange = 6.0.1-54 -> ocaml >= 5.4 -> ocaml-variants >= 5.4.0~

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall melange.6.0.1-54;
        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 "$pkg" != 'melange.6.0.1-54' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-11-30 21:08.41: Job failed: Failed: Build failed
2025-11-30 21:08.41: Log analysis:
2025-11-30 21:08.41: >>> 
No solution found, exiting
 (score = 100)
2025-11-30 21:08.41: [SKIP] Package not available