(for PR #29030)

2025-12-07 04:58.04: New job: build melange-testing-library.0.2.0, using opam 2.0
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29030/head (4ef7835fadf0f40eb424e189c0eb87126d2e5d9c)
                              on debian-13-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29030/head" && git reset --hard 4ef7835f
git fetch origin master
git merge --no-edit 2ab7464b16d46be89975bea0595240dd3fccf608
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:08ea1ae277f20c88280199a79d0eb38d0ce9ac4f0e6708b737375fbc9477b1b9
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.0 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam depext -u || true
RUN opam pin add -k version -yn melange-testing-library.0.2.0 0.2.0
RUN opam depext melange-testing-library.0.2.0 && opam reinstall melange-testing-library.0.2.0; \
    res=$?; \
    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 04:58.04: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:08ea1ae277f20c88280199a79d0eb38d0ce9ac4f0e6708b737375fbc9477b1b9-melange-testing-library.0.2.0-4ef7835fadf0f40eb424e189c0eb87126d2e5d9c"
2025-12-07 04:58.04: 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-2.0 /usr/bin/opam"))
 (run (network host)
      (shell "opam init --reinit --config .opamrc-sandbox -ni"))
 (run (shell "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 depext -u || 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 depext melange-testing-library.0.2.0 && 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 04:58.04: Waiting for resource in pool OCluster
2025-12-07 04:58.05: Waiting for worker…
2025-12-07 04:58.10: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
Updating files:  78% (14960/18981)
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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 04:59.03 ---> using "f1efaca4efe78a0f1c0c577ac466822c09dc6f46f3a7d5f2a65ad8e72e69d5b6" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.0 /usr/bin/opam"))
2025-12-07 04:59.04 ---> saved as "e2163f8bef1d6127ab4fb4dde6361dcd8e2ac54f06decad22a8813d7c1f71a57"

/home/opam: (run (network host)
                 (shell "opam init --reinit --config .opamrc-sandbox -ni"))
[NOTE] Will configure 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.

[WARNING] Recommended dependencies -- most packages rely on these:
  - m4

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
default (at git+file:///home/opam/opam-repository): 
    [INFO] opam 2.1 and 2.2 include many performance and security improvements over 2.0; please consider upgrading (https://opam.ocaml.org/doc/Install.html)

2025-12-07 05:00.12 ---> saved as "138d2f3414841c2e7513e136b0e3bdd5c6547feb7e0b4b9c2ef2cca51c88008e"

/home/opam: (run (shell "opam config report"))
# opam config report
# opam-version      2.0.10 (adc1e1829a2bef5b240746df80341b508290fe3b) 
# self-upgrade      no
# system            arch=x86_64 os=linux os-distribution=debian os-version=13
# solver            builtin-mccs+glpk
# install-criteria  -removed,-count[version-lag,request],-count[version-lag,changed],-changed
# upgrade-criteria  -removed,-count[version-lag,solution],-new
# jobs              71
# repositories      1 (version-controlled)
# pinned            1 (version)
# current-switch    5.4
2025-12-07 05:00.14 ---> saved as "2ec0dd656338d58056534159a57fe0d9fd166ef685f655c2b1314ec0f1d173a3"

/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 05:00.24 ---> saved as "434d4e63ada51ff9fa4a59b85e7f467e72ec22b2e065159878473b976345158a"

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-07 05:00.55 ---> saved as "0690fd1598522f19afbe631226f33513d17a996a8b4f2f35cc3a6d51b7ec7476"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
default (at file:///home/opam/opam-repository): 
    [INFO] opam 2.1 and 2.2 include many performance and security improvements over 2.0; please consider upgrading (https://opam.ocaml.org/doc/Install.html)

2025-12-07 05:01.08 ---> saved as "1d556bd44d07b804eaa5bea9ed51494cae21646d59c8d2ffd501a655a4620319"

/home/opam: (run (network host)
                 (shell "opam depext -u || true"))
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
# No extra OS packages requirements found.
# All required OS packages found.
The following command needs to be run through "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 (1510 kB/s)
Reading package lists...
# OS package update successful
2025-12-07 05:01.10 ---> saved as "9c5973008c6cfea20215e8ebb6a09c4948ab38e8f5f5efc17d5b4a0e37720689"

/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 05:01.11 ---> saved as "0d1609fcaf7f3aaf70bf179a2a17126e52a30b1cd166a599fb7af20c4ab33a30"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam depext melange-testing-library.0.2.0 && 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"))
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
[ERROR] No solution for melange-testing-library.0.2.0: The following dependencies couldn't be met:
          - melange-testing-library -> melange >= 5.0.0 -> ppxlib < 0.36.0 -> ocaml < 5.4.0
              base of this switch (use `--unlock-base' to force)
          - melange-testing-library -> melange >= 5.0.0 -> ppxlib < 0.36.0 -> ocaml-migrate-parsetree >= 1.3.1
              conflict with the base packages of this switch
          - melange-testing-library -> melange >= 5.0.0 -> ocaml < 5.4
              base of this switch (use `--unlock-base' to force)


Command failed: opam list --readonly --external '--resolve=melange-testing-library.0.2.0' --color=never returned 20
"/usr/bin/env" "bash" "-c" "opam depext melange-testing-library.0.2.0 && 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 05:01.23: Job failed: Failed: Build failed
2025-12-07 05:01.23: Log analysis:
2025-12-07 05:01.23: >>> 
[ERROR] No solution for melange-testing-library.0.2.0: The following dependencies couldn't be met:
 (score = 100)
2025-12-07 05:01.23: [SKIP] Package not available