(for PR #27965)

2025-06-12 09:18.38: New job: build ancient.0.10.0, using opam 2.3
                              from https://github.com/ocaml/opam-repository.git#refs/pull/27965/head (e8b423fa48aadb0160c2cb6c31b7ae6bb2b33f02)
                              on archlinux-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/27965/head" && git reset --hard e8b423fa
git fetch origin master
git merge --no-edit 391f82e9da01a13ff4ca7414df22df13c440bd0e
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:archlinux-ocaml-4.14@sha256:5a1345ad9a2c3916dedf3862f8ba31f47a0098f03c2f791f6c7a6eb2d9019cab
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ancient.0.10.0 0.10.0
RUN opam reinstall ancient.0.10.0; \
    res=$?; \
    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 "\"archlinux\""; 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:archlinux-ocaml-4.14@sha256:5a1345ad9a2c3916dedf3862f8ba31f47a0098f03c2f791f6c7a6eb2d9019cab-ancient.0.10.0-e8b423fa48aadb0160c2cb6c31b7ae6bb2b33f02"
2025-06-12 09:18.38: Using OBuilder spec:
((from ocaml/opam:archlinux-ocaml-4.14@sha256:5a1345ad9a2c3916dedf3862f8ba31f47a0098f03c2f791f6c7a6eb2d9019cab)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.3 /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 ancient.0.10.0 0.10.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "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 \"\\\"archlinux\\\"\"; 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 10:07.12: Waiting for worker…
2025-06-12 10:09.10: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
Updating files:  96% (22449/23250)
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:archlinux-ocaml-4.14@sha256:5a1345ad9a2c3916dedf3862f8ba31f47a0098f03c2f791f6c7a6eb2d9019cab)
2025-06-12 10:10.46 ---> using "d4f93cb73ced5f97eef2148ef6fffdf163c92af216e38d74e940611795e6d478" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
2025-06-12 10:10.46 ---> using "7653a430ee07a4f15350fdce228cd920febdf2fb5ff45de9c3c0315cf07d8328" 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.

This development 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
2025-06-12 10:10.46 ---> using "bb9b867d88f17294ad501a8529a31386a5dc768514b7d6ee2a4da936aa54aa22" 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         2.3.0 (35acd0c5abc5e66cdbd5be16ba77aa6c33a4c724)
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=arch os-version=20250601.0.358000
# 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
2025-06-12 10:10.46 ---> using "9cd965eb7f017e3410a1f9b15b25a6fc5153862a548967e011fca332552d037f" 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 10:10.46 ---> using "1c464f37441a557c8f34a8ecbb8230927914ac5c67b13b7f288261ad7b8bdf43" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-06-12 10:11.12 ---> saved as "2577834003d831bb97d0ad60632193b938c79f7bb038b9866b4070bfae86e9f2"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-06-12 10:11.37 ---> saved as "297dcae529b4ad043c01d26d62333baf4ef3e88376c675bf51c15a8d6c1ddcc6"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/sbin/sudo "pacman" "-Sy"
- :: Synchronizing package databases...
-  core downloading...
-  extra downloading...
2025-06-12 10:11.38 ---> saved as "ee4a46a04022362bc0ad03d19f4654039155bb1196703826aa2229641af83ac4"

/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 10:11.39 ---> saved as "0af3be5d475f4db240d86b000104f430132f678854524853e98edb4e49fdb08f"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "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 \"\\\"archlinux\\\"\"; 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"))
ancient.0.10.0 is not installed. Install it? [y/n] y
  * Incompatible packages:
    - (invariant) → ocaml-base-compiler = 4.14.2
    - ancient >= 0.10.0 → ocaml >= 5 → ocaml-variants < 5.5.1~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - ancient >= 0.10.0 → ocaml >= 5 → ocaml-variants < 5.0.1~ → xenbigarray
    unknown package
  * Missing dependency:
    - ancient >= 0.10.0 → ocaml >= 5 → ocaml-variants < 5.0.1~ → ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - ancient >= 0.10.0 → ocaml >= 5 → ocaml-variants < 5.2.1~ → system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "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 "\"archlinux\""; 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 10:12.46: Job failed: Failed: Build failed
2025-06-12 10:12.46: Log analysis:
2025-06-12 10:12.46: >>> 
No solution found, exiting
 (score = 100)
2025-06-12 10:12.46: [SKIP] Package not available