(for PR #29260)

2026-01-21 13:35.31: New job: build camels.1.0.0, using opam 2.1
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29260/head (d2d2eaffa072ea1090da943d36c8a776012a0b42)
                              on debian-13-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29260/head" && git reset --hard d2d2eaff
git fetch origin master
git merge --no-edit 10a02a697b08f6d78a6c4c2cb9a76136afc7776d
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:9f4103f7d94b5db36adc57e1243e7aafbc77118b03f3c64c9d783f6875957bd3
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn camels.1.0.0 1.0.0
RUN opam reinstall camels.1.0.0; \
    res=$?; \
    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 "\"debian-13\""; 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:debian-13-ocaml-5.4@sha256:9f4103f7d94b5db36adc57e1243e7aafbc77118b03f3c64c9d783f6875957bd3-camels.1.0.0-d2d2eaffa072ea1090da943d36c8a776012a0b42"
2026-01-21 13:35.31: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:9f4103f7d94b5db36adc57e1243e7aafbc77118b03f3c64c9d783f6875957bd3)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.1 /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 \"\\\"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 \"$pkg\" != 'camels.1.0.0' && partial_fails=\"$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 13:40.39: Waiting for worker…
2026-01-21 13:50.39: 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:debian-13-ocaml-5.4@sha256:9f4103f7d94b5db36adc57e1243e7aafbc77118b03f3c64c9d783f6875957bd3)
2026-01-21 13:50.41 ---> using "85f72cf1fe4e2d7307f2dbfaf295ab13f00915a95088b79c0422ecbd77383032" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam"))
2026-01-21 13:50.41 ---> using "fc28193d412a87e5f09559b4b50947264f9dad904fa48082b58f897b37a2c661" 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 2.1, 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 13:50.41 ---> using "04e2bcda1d73f097cd6cae7b6ee5b46743c7a7cc0903efb104f2b40c41da2ad4" 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         2.1.6 (263921263e1f745613e2882745114b7b08f3608b) 
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     
# upgrade-criteria     
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       5.4
# 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 13:50.41 ---> using "958e5263edd0a594e754e4445b5dcc981a24c85be6bb8185bb20ede6e117274e" 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/"))
2026-01-21 13:50.41 ---> using "66862963fe3ec4d7e43628945eb7b00fcb1a44818a8f1c3002ccd175ddd405e1" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-21 13:50.48 ---> saved as "f0a7b3c936d2dc3c58108e2ec5b2614aef16df7a416f82d572355a5859f743b3"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-21 13:50.58 ---> saved as "605e004128745cf4321f905d1d0ff9c6112d7225ffbe08141b488522b2aea3e9"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian trixie InRelease [140 kB]
- 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 trixie/main amd64 Packages [9670 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [96.3 kB]
- Fetched 9998 kB in 1s (11.0 MB/s)
- Reading package lists...
- 
2026-01-21 13:51.00 ---> saved as "842873159ea9663c48b4d254c35372c152035a5606b79a178947c56445c03390"

/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 13:51.01 ---> saved as "d4d79c1a8f299906b4d340556469da597fa62a60d00b4f5f021d806a0ec73e1f"

/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 \"\\\"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 \"$pkg\" != 'camels.1.0.0' && partial_fails=\"$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'
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-base-compiler < 3.07+1 | ocaml-system < 3.07+1 | ocaml-variants < 3.8~
    not available because the package is pinned to version 5.4.0
    unmet availability conditions: 'sys-ocaml-version = "3.07"'
    no matching version
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-base-compiler = 3.07+1 | ocaml-system = 3.07+1 | ocaml-variants < 3.8~
    not available because the package is pinned to version 5.4.0
    unmet availability conditions: 'sys-ocaml-version = "3.07+1"'
    no matching version
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-base-compiler = 3.07+2 | ocaml-system = 3.07+2 | ocaml-variants < 3.8~
    not available because the package is pinned to version 5.4.0
    unmet availability conditions: 'sys-ocaml-version = "3.07+2"'
    no matching version
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-base-compiler = 3.08.0 | ocaml-system >= 3.08.0 | ocaml-variants < 3.08.1~
    not available because the package is pinned to version 5.4.0
    unmet availability conditions, e.g. 'sys-ocaml-version = "3.08.0"'
    no matching version
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-base-compiler = 3.08.1 | ocaml-system >= 3.08.1 | ocaml-variants < 3.08.2~
    not available because the package is pinned to version 5.4.0
    unmet availability conditions, e.g. 'sys-ocaml-version = "3.08.1"'
    no matching version
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-base-compiler = 3.08.2 | ocaml-system >= 3.08.2 | ocaml-variants < 3.08.3~
    not available because the package is pinned to version 5.4.0
    unmet availability conditions, e.g. 'sys-ocaml-version = "3.08.2"'
    no matching version
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-base-compiler = 3.08.3 | ocaml-system >= 3.08.3 | ocaml-variants < 3.08.4~
    not available because the package is pinned to version 5.4.0
    unmet availability conditions, e.g. 'sys-ocaml-version = "3.08.3"'
    no matching version
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-base-compiler = 3.08.4 | ocaml-system >= 3.08.4 | ocaml-variants < 3.08.5~
    not available because the package is pinned to version 5.4.0
    unmet availability conditions, e.g. 'sys-ocaml-version = "3.08.4"'
    no matching version
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-base-compiler = 3.09.0 | ocaml-system >= 3.09.0 | 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 = "3.09.0"'
    no matching version
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-variants >= 4.02.4 -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - camels >= 1.0.0 -> notty -> ocaml < 4.14 -> ocaml-variants >= 4.02.4 -> 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 "\"debian-13\""; 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 13:51.14: Job failed: Failed: Build failed
2026-01-21 13:51.14: Log analysis:
2026-01-21 13:51.14: >>> 
No solution found, exiting
 (score = 100)
2026-01-21 13:51.14: [SKIP] Package not available