(for PR #27965)

2025-06-12 09:18.38: New job: build ancient.0.10.0, using opam 2.0
                              from https://github.com/ocaml/opam-repository.git#refs/pull/27965/head (e8b423fa48aadb0160c2cb6c31b7ae6bb2b33f02)
                              on debian-12-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/27965/head" && git reset --hard e8b423fa
git fetch origin master
git merge --no-edit 391f82e9da01a13ff4ca7414df22df13c440bd0e
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-12-ocaml-4.14@sha256:483ad21d779c01615f15084a5f82173baaa47820587729faca9fb7ad645f50be
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.0 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam depext -u || true
RUN opam pin add -k version -yn ancient.0.10.0 0.10.0
RUN opam depext ancient.0.10.0 && opam reinstall ancient.0.10.0; \
    res=$?; \
    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-12\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'ancient.0.10.0' && partial_fails="$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 .

2025-06-12 09:18.38: Using cache hint "ocaml/opam:debian-12-ocaml-4.14@sha256:483ad21d779c01615f15084a5f82173baaa47820587729faca9fb7ad645f50be-ancient.0.10.0-e8b423fa48aadb0160c2cb6c31b7ae6bb2b33f02"
2025-06-12 09:18.38: Using OBuilder spec:
((from ocaml/opam:debian-12-ocaml-4.14@sha256:483ad21d779c01615f15084a5f82173baaa47820587729faca9fb7ad645f50be)
 (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 ancient.0.10.0 0.10.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam depext ancient.0.10.0 && opam reinstall ancient.0.10.0;\
             \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-12\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'ancient.0.10.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-06-12 09:18.38: Waiting for resource in pool OCluster
2025-06-12 10:07.25: Waiting for worker…
2025-06-12 10:10.33: Got resource from pool OCluster
Building on doris.caelum.ci.dev
All commits already cached
Updating files:  94% (21978/23250)
Updating files:  95% (22088/23250)
Updating files:  96% (22320/23250)
Updating files:  97% (22553/23250)
Updating files:  98% (22785/23250)
Updating files:  99% (23018/23250)
Updating files: 100% (23250/23250)
Updating files: 100% (23250/23250), done.
HEAD is now at 391f82e9da Merge pull request #28013 from mbarbin/opam-publish-volgo.0.0.18
Merge made by the 'ort' strategy.
Auto packing the repository in background for optimum performance.
See "git help gc" for manual housekeeping.
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

 packages/ancient/ancient.0.10.0/opam | 52 ++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 packages/ancient/ancient.0.10.0/opam

(from ocaml/opam:debian-12-ocaml-4.14@sha256:483ad21d779c01615f15084a5f82173baaa47820587729faca9fb7ad645f50be)
2025-06-12 10:11.12 ---> using "d2a5d53d37f66f6f5c7aad091614b30735c874c67d8308d229ed194879752021" 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"))
2025-06-12 10:11.12 ---> using "c3c0d81c19945c1047b2424c57d3c02c4bc47791c57edb793b1e6ef5dc91a51a" from cache

/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)

2025-06-12 10:11.12 ---> using "96de4a078dbf9f89de54aa3eda14e48ba4ccbcaf430452a36282226b87a7ac8e" from cache

/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=12
# 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    4.14
2025-06-12 10:11.12 ---> using "29ac547002922ab77eb9a2d5bd10a65f85fb8a0380ee59066e4bb23fcfa640fa" 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/"))
2025-06-12 10:11.12 ---> using "cb2aa1228c7b2ffa3a55c182b2e928ed1de572fe38306d00fdf2279cea0f2fa0" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-06-12 10:11.32 ---> saved as "64329b0598fd1d50a175440f15717cfc6ca9e7ed078638b4dfdcd6bc0fbc7c0e"

/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)

2025-06-12 10:11.49 ---> saved as "758955db84ab9a11d9f013c070c3ff519a72054deb353e6489662e37404d41c9"

/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 bookworm InRelease
Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]
Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
Get:4 http://deb.debian.org/debian-security bookworm-security/main amd64 Packages [266 kB]
Fetched 369 kB in 0s (1096 kB/s)
Reading package lists...
# OS package update successful
2025-06-12 10:11.50 ---> saved as "f135908d3b868ac10d681dd78fe2c163e7832a1ea62ab44610ec9dfb64801275"

/home/opam: (run (shell "opam pin add -k version -yn ancient.0.10.0 0.10.0"))
ancient is now pinned to version 0.10.0
2025-06-12 10:11.52 ---> saved as "ddcd3695681e0330158523200da9d2bf90aed697b3e0f358509f063a8c0dc5e7"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam depext ancient.0.10.0 && opam reinstall ancient.0.10.0;\
                        \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-12\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'ancient.0.10.0' && partial_fails=\"$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 ancient.0.10.0: The following dependencies couldn't be met:
          - ancient -> ocaml >= 5
              base of this switch (use `--unlock-base' to force)
          - ancient -> ocaml-option-nnp
              conflict with the base packages of this switch


Command failed: opam list --readonly --external '--resolve=ancient.0.10.0' --color=never returned 20
"/usr/bin/env" "bash" "-c" "opam depext ancient.0.10.0 && opam reinstall ancient.0.10.0;
        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-12\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'ancient.0.10.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-06-12 10:12.21: Job failed: Failed: Build failed
2025-06-12 10:12.21: Log analysis:
2025-06-12 10:12.21: >>> 
[ERROR] No solution for ancient.0.10.0: The following dependencies couldn't be met:
 (score = 100)
2025-06-12 10:12.21: [SKIP] Package not available