(for PR #29260)

2026-01-21 13:35.31: New job: build camels.1.0.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29260/head (d2d2eaffa072ea1090da943d36c8a776012a0b42)
                              on fedora-43-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29260/head" && git reset --hard d2d2eaff
git fetch origin master
git merge --no-edit 10a02a697b08f6d78a6c4c2cb9a76136afc7776d
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:fedora-43-ocaml-5.4@sha256:1e157411a029dc296401a6334a17eeba0eb85cc40889b2644a1eb588b63a2ed2
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn camels.1.0.0 1.0.0
RUN opam reinstall camels.1.0.0; \
    res=$?; \
    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 "\"fedora-43\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'camels.1.0.0' && partial_fails="$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 .

2026-01-21 13:35.31: Using cache hint "ocaml/opam:fedora-43-ocaml-5.4@sha256:1e157411a029dc296401a6334a17eeba0eb85cc40889b2644a1eb588b63a2ed2-camels.1.0.0-d2d2eaffa072ea1090da943d36c8a776012a0b42"
2026-01-21 13:35.31: Using OBuilder spec:
((from ocaml/opam:fedora-43-ocaml-5.4@sha256:1e157411a029dc296401a6334a17eeba0eb85cc40889b2644a1eb588b63a2ed2)
 (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 camels.1.0.0 1.0.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall camels.1.0.0;\
             \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 \"\\\"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 \"$pkg\" != 'camels.1.0.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-21 13:35.31: Waiting for resource in pool OCluster
2026-01-21 13:38.23: Waiting for worker…
2026-01-21 13:47.51: Got resource from pool OCluster
Building on odawa.caelum.ci.dev
All commits already cached
HEAD is now at 10a02a697b Merge pull request #29249 from panglesd/release-slipshow-v0.8.0
Updating 10a02a697b..d2d2eaffa0
Fast-forward
 packages/camels/camels.1.0.0/opam | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 packages/camels/camels.1.0.0/opam

(from ocaml/opam:fedora-43-ocaml-5.4@sha256:1e157411a029dc296401a6334a17eeba0eb85cc40889b2644a1eb588b63a2ed2)
2026-01-21 14:05.07 ---> saved as "563e5d8b9f29a10b04d1d47babf031cb5cb9e45915fe6744769ea81d40437d42"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-21 14:05.07 ---> saved as "e8e94176244ec8681f2986dd72bd593f333bdbc2f88bbcb302834b35716aba50"

/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
2026-01-21 14:05.27 ---> saved as "01fc7c0691f4733dae33afed3324b756f5adae23e649af9f578ac4e1c51367cd"

/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         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
2026-01-21 14:05.28 ---> saved as "a8eace04e44e96490d98dd71c337412f44cbe32748c5747a797e5f7ebdde76ca"

/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/"))
2026-01-21 14:05.36 ---> saved as "eaeb7137240ddeb924bfa449d8aceee6856befa2e044a9e1bd9f4bcdc93f259a"

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-21 14:05.41 ---> saved as "fc25d0968465dcd071e8bdc4eb040c716712be97dba0d5301a7f7a5913a665bb"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-21 14:05.57 ---> saved as "d239650d7445d7add7b76edcb087ba9cf7bbdcf56bdadd4d2c2ccfe7846c4c10"

/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% |  15.7 KiB/s |   9.6 KiB |  00m01s
- Repositories loaded.
- Metadata cache created.
2026-01-21 14:06.00 ---> saved as "3cf7f085ef311d4b976c23cf6962a5134bc3b0c3bd48ca8057cbbe9cbacff0e1"

/home/opam: (run (shell "opam pin add -k version -yn camels.1.0.0 1.0.0"))
camels is now pinned to version 1.0.0
2026-01-21 14:06.00 ---> saved as "6a928745cf00784910901733a84fc77301ac88a13b414c8d7253c2553560f0d5"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall camels.1.0.0;\
                        \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 \"\\\"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 \"$pkg\" != 'camels.1.0.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
camels.1.0.0 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler >= 5.4.0
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> dkml-base-compiler
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler >= 5.4.0
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-variants
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> 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:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-variants -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-variants -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall camels.1.0.0;
        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 "\"fedora-43\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'camels.1.0.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-01-21 14:06.12: Job failed: Failed: Build failed
2026-01-21 14:06.12: Log analysis:
2026-01-21 14:06.12: >>> 
No solution found, exiting
 (score = 100)
2026-01-21 14:06.12: [SKIP] Package not available