(for PR #29030)

2025-12-07 04:58.05: New job: build melange-testing-library.0.2.0, using opam 2.4
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29030/head (4ef7835fadf0f40eb424e189c0eb87126d2e5d9c)
                              on debian-13-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29030/head" && git reset --hard 4ef7835f
git fetch origin master
git merge --no-edit 2ab7464b16d46be89975bea0595240dd3fccf608
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:08ea1ae277f20c88280199a79d0eb38d0ce9ac4f0e6708b737375fbc9477b1b9
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.4 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn melange-testing-library.0.2.0 0.2.0
RUN opam reinstall melange-testing-library.0.2.0; \
    res=$?; \
    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 "$pkg" != 'melange-testing-library.0.2.0' && partial_fails="$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 .

2025-12-07 04:58.05: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:08ea1ae277f20c88280199a79d0eb38d0ce9ac4f0e6708b737375fbc9477b1b9-melange-testing-library.0.2.0-4ef7835fadf0f40eb424e189c0eb87126d2e5d9c"
2025-12-07 04:58.05: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:08ea1ae277f20c88280199a79d0eb38d0ce9ac4f0e6708b737375fbc9477b1b9)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.4 /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-testing-library.0.2.0 0.2.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall melange-testing-library.0.2.0;\
             \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 \"$pkg\" != 'melange-testing-library.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-12-07 04:58.05: Waiting for resource in pool OCluster
2025-12-07 04:58.05: Waiting for worker…
2025-12-07 04:59.33: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
Updating files:  81% (15547/18981)
Updating files:  82% (15565/18981)
Updating files:  83% (15755/18981)
Updating files:  84% (15945/18981)
Updating files:  85% (16134/18981)
Updating files:  86% (16324/18981)
Updating files:  87% (16514/18981)
Updating files:  88% (16704/18981)
Updating files:  89% (16894/18981)
Updating files:  90% (17083/18981)
Updating files:  91% (17273/18981)
Updating files:  92% (17463/18981)
Updating files:  93% (17653/18981)
Updating files:  94% (17843/18981)
Updating files:  95% (18032/18981)
Updating files:  96% (18222/18981)
Updating files:  97% (18412/18981)
Updating files:  98% (18602/18981)
Updating files:  99% (18792/18981)
Updating files: 100% (18981/18981)
Updating files: 100% (18981/18981), done.
HEAD is now at 2ab7464b16 Merge pull request #29022 from thatportugueseguy/release-passage-0.3.1
Updating 2ab7464b16..4ef7835fad
Fast-forward
 .../melange-testing-library.0.2.0/opam             | 51 ++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 packages/melange-testing-library/melange-testing-library.0.2.0/opam

(from ocaml/opam:debian-13-ocaml-5.4@sha256:08ea1ae277f20c88280199a79d0eb38d0ce9ac4f0e6708b737375fbc9477b1b9)
2025-12-07 04:59.36 ---> using "f1efaca4efe78a0f1c0c577ac466822c09dc6f46f3a7d5f2a65ad8e72e69d5b6" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.4 /usr/bin/opam"))
2025-12-07 04:59.36 ---> saved as "550ba468b46822d5c5268827d9061fb74d38e140cc31970a106bcbd65cfd26fb"

/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
2025-12-07 05:00.09 ---> saved as "7c6b55d49e389b06d94e8ea2d5ed1a984137483500331c8662e9868912dee596"

/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         2.4.1
# self-upgrade         no
# system               arch=x86_64 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                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       5.4
# invariant            ["ocaml-base-compiler" {>= "5.4.0"}]
# compiler-packages    ocaml-base-compiler.5.4.0, ocaml-compiler.5.4.0, 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       5.4.0
2025-12-07 05:00.10 ---> saved as "cee545aac82fac86c848bfe02ff04a9702884a43001db6235b689ccad7bd426f"

/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/"))
2025-12-07 05:00.21 ---> saved as "080ad8d00166b21e84e858d2a15bf46112042ed07377921f0159f47fbc8da84d"

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-07 05:00.55 ---> saved as "857b89f7898efe0cce2ec9cfe89c2e766a4de515c7cb48ee99ddbdfccdfc643b"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-12-07 05:01.17 ---> saved as "d2c6aa3b79b4062352a62f9d4295f37e73eb298d938f4d2c3d28d15931fc0e65"

/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 amd64 Packages [81.6 kB]
- Fetched 172 kB in 0s (1077 kB/s)
- Reading package lists...
- 
2025-12-07 05:01.19 ---> saved as "0a1476e5e1be8a0f82582cc0796f44b508a1d6bb06ce54e6fd4f67a0622d7f97"

/home/opam: (run (shell "opam pin add -k version -yn melange-testing-library.0.2.0 0.2.0"))
melange-testing-library is now pinned to version 0.2.0
2025-12-07 05:01.20 ---> saved as "9d16e497b38452ef0447295d20af5d29af053b55a88e7398ae5442abdf82b3aa"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall melange-testing-library.0.2.0;\
                        \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 \"$pkg\" != 'melange-testing-library.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
melange-testing-library.0.2.0 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler >= 5.4.0
    - melange-testing-library >= 0.2.0 -> melange >= 5.0.0 -> ocaml < 5.2 -> dkml-base-compiler
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler >= 5.4.0
    - melange-testing-library >= 0.2.0 -> melange >= 5.0.0 -> ocaml < 5.2 -> ocaml-variants
  * Missing dependency:
    - melange-testing-library >= 0.2.0 -> melange >= 5.0.0 -> ocaml < 5.2 -> 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 5.4.0
    unmet availability conditions, e.g. 'sys-ocaml-version = "5.4.0" & (os != "win32" | sys-ocaml-libc = "msvc")'
    no matching version
  * Missing dependency:
    - melange-testing-library >= 0.2.0 -> melange >= 5.0.0 -> ocaml < 5.2 -> ocaml-variants -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - melange-testing-library >= 0.2.0 -> melange >= 5.0.0 -> ocaml < 5.2 -> ocaml-variants -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall melange-testing-library.0.2.0;
        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 "$pkg" != 'melange-testing-library.0.2.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-12-07 05:01.46: Job failed: Failed: Build failed
2025-12-07 05:01.46: Log analysis:
2025-12-07 05:01.46: >>> 
No solution found, exiting
 (score = 100)
2025-12-07 05:01.46: [SKIP] Package not available