(for PR #29223)

2026-01-20 14:22.59: New job: build domainpc.0.1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29223/head (6f70752948af7fb82909b9805d4818479f054fea)
                              on fedora-43-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29223/head" && git reset --hard 6f707529
git fetch origin master
git merge --no-edit 1c997ec9e6ebc6ea699547000cb8dfa44e52efaa
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:fedora-43-ocaml-4.14@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn domainpc.0.1 0.1
RUN opam reinstall domainpc.0.1; \
    res=$?; \
    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 "\"fedora-43\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'domainpc.0.1' && partial_fails="$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 .

2026-01-20 14:22.59: Using cache hint "ocaml/opam:fedora-43-ocaml-4.14@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c-domainpc.0.1-6f70752948af7fb82909b9805d4818479f054fea"
2026-01-20 14:22.59: Using OBuilder spec:
((from ocaml/opam:fedora-43-ocaml-4.14@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c)
 (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 domainpc.0.1 0.1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall domainpc.0.1;\
             \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 \"\\\"fedora-43\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'domainpc.0.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-20 14:22.59: Waiting for resource in pool OCluster
2026-01-20 14:23.00: Waiting for worker…
2026-01-20 14:23.01: Got resource from pool OCluster
Building on odawa.caelum.ci.dev
All commits already cached
HEAD is now at 1c997ec9e6 Merge pull request #29241 from polytypic/release-multicore-magic-2.3.2
Merge made by the 'ort' strategy.
 packages/domainpc/domainpc.0.1/opam | 41 +++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 packages/domainpc/domainpc.0.1/opam

(from ocaml/opam:fedora-43-ocaml-4.14@sha256:c1f9cb6eead47028ef608b17f0db8509310b95cab84cf6696268cba32d3d7c8c)
2026-01-20 14:24.01 ---> using "5292c797405748bf076c52d923e8095c7a877970c7b7d48dc45166e5bb126aac" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-20 14:24.01 ---> using "18d2fa594130badfe1c79075d453a295259e254a7d44f09c83534c74f3b4f043" 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 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 ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[ocaml-patches-overlay] synchronised from git+https://github.com/ocurrent/opam-repository#patches
[default] Initialised
2026-01-20 14:24.01 ---> using "80dd19713060494ff869ac53a5af00a6de1b5d868be003311c87e6943349ab0c" 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
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=fedora os-version=43
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 255
# repositories         2 (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
2026-01-20 14:24.01 ---> using "ad22e3639a4900b02442a98dc10024465f3457e3a5c36bdf8d87d33efe321910" 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/"))
2026-01-20 14:24.01 ---> using "3458b8a729e7a4b21cbecb3b27b02f6ef66cf91869d5396bc163edfc279aaa76" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-20 14:24.06 ---> saved as "29450bfded38467d9d3d01998fd4a97b10654558b4bd39b701a66649f37204b8"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-20 14:24.23 ---> saved as "eef7afdd9b6d0cb87be5c87bb7a04d9981762357495e13834d047829cad99326"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/sbin/sudo "yum" "makecache"
- Updating and loading repositories:
-  Fedora 43 - x86_64 - Updates           100% |  50.8 KiB/s |  19.7 KiB |  00m00s
- Repositories loaded.
- Metadata cache created.
2026-01-20 14:24.25 ---> saved as "3b6b32cb5e8312d1f8127d3a70d28bdec42e42e4c01a7077ad5611216a4186ea"

/home/opam: (run (shell "opam pin add -k version -yn domainpc.0.1 0.1"))
domainpc is now pinned to version 0.1
2026-01-20 14:24.26 ---> saved as "e1ba11c24e21b4361e005ce9f52521066864882b4a5192e9ae354522e7732aac"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall domainpc.0.1;\
                        \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 \"\\\"fedora-43\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'domainpc.0.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
domainpc.0.1 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
    - domainpc -> ocaml >= 5.2.0
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - domainpc -> ocaml >= 5.2.0 -> ocaml-variants >= 5.2.0~
  * Missing dependency:
    - domainpc -> ocaml >= 5.2.0 -> ocaml-variants >= 5.2.0~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall domainpc.0.1;
        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 "\"fedora-43\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'domainpc.0.1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-01-20 14:24.43: Job failed: Failed: Build failed
2026-01-20 14:24.43: Log analysis:
2026-01-20 14:24.43: >>> 
No solution found, exiting
 (score = 100)
2026-01-20 14:24.43: [SKIP] Package not available