(for PR #29568)

2026-03-23 09:19.17: New job: build ocamlformat-lib.0.26.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29568/head (353fd9234f0397ed1edb6d612e5b9da8472dea1c)
                              on debian-13-ocaml-5.4/ppc64le

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29568/head" && git reset --hard 353fd923
git fetch origin master
git merge --no-edit 63b7ba71be83567e54bb667df0f2bb374d74fb61
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:d71f2aba96eaf6783071a5e7f286f7d0814236498e03299a2ec0aa76ab909b68
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ocamlformat-lib.0.26.0 0.26.0
RUN opam reinstall ocamlformat-lib.0.26.0; \
    res=$?; \
    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 "$pkg" != 'ocamlformat-lib.0.26.0' && partial_fails="$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 .

2026-03-23 09:19.17: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:d71f2aba96eaf6783071a5e7f286f7d0814236498e03299a2ec0aa76ab909b68-ocamlformat-lib.0.26.0-353fd9234f0397ed1edb6d612e5b9da8472dea1c"
2026-03-23 09:19.17: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:d71f2aba96eaf6783071a5e7f286f7d0814236498e03299a2ec0aa76ab909b68)
 (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 ocamlformat-lib.0.26.0 0.26.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall ocamlformat-lib.0.26.0;\
             \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 \"$pkg\" != 'ocamlformat-lib.0.26.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-23 09:19.17: Waiting for resource in pool OCluster
2026-03-23 09:19.20: Waiting for worker…
2026-03-23 09:19.20: Got resource from pool OCluster
Building on scyleia.caelum.ci.dev
All commits already cached
HEAD is now at 63b7ba71be Merge pull request #29573 from davesnx/release-parseff-0.2.0
Merge made by the 'ort' strategy.
 packages/ocamlformat-lib/ocamlformat-lib.0.25.1/opam | 1 +
 packages/ocamlformat-lib/ocamlformat-lib.0.26.0/opam | 1 +
 packages/ocamlformat-lib/ocamlformat-lib.0.26.1/opam | 1 +
 packages/ocamlformat-lib/ocamlformat-lib.0.26.2/opam | 1 +
 packages/ocamlformat-lib/ocamlformat-lib.0.27.0/opam | 1 +
 packages/ocamlformat-lib/ocamlformat-lib.0.28.1/opam | 1 +
 packages/ocamlformat-lib/ocamlformat-lib.0.29.0/opam | 1 +
 packages/ocamlformat/ocamlformat.0.24.1/opam         | 1 +
 8 files changed, 8 insertions(+)

(from ocaml/opam:debian-13-ocaml-5.4@sha256:d71f2aba96eaf6783071a5e7f286f7d0814236498e03299a2ec0aa76ab909b68)
2026-03-23 09:19.38 ---> using "4a5c083f7e8824cb08c4124fed426599ecb127ed3059de4bc6df472ee9ab83fb" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-23 09:19.38 ---> using "e7c540e23b330b6dc7c3cc3e10d508b6df747fe59bfc3ae3295b89b8d9d46156" 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 ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-03-23 09:19.38 ---> using "2a9402e3199bbea3527355e577b1b610ce3488b0c2c39657ce6afaadb1fa3b82" 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=ppc64 os=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 175
# 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
2026-03-23 09:19.38 ---> using "54bef90969d9974738009ca7e58511f87af86e9495ad15cc15990f0f52267133" 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/"))
2026-03-23 09:19.38 ---> using "1792608b48939d243ede35b611be93aeca60dabc8796ef5121a3088df30854b0" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-23 09:20.19 ---> saved as "0b6521fd32362532217d5e7849d7183d96e102bb855888ce0ab3bcc4024f885b"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-23 09:20.37 ---> saved as "d8f9401e24e44aa691f5069260c8e17756cf60f5b33bc1b0804074c1db6bae69"

/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 ppc64el Packages [9509 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main ppc64el Packages [109 kB]
- Fetched 9849 kB in 12s (821 kB/s)
- Reading package lists...
2026-03-23 09:20.50 ---> saved as "cddef64cfff093c2f38945b88ece4cef8dbd43a697c235d1a5fadf8775e2cd61"

/home/opam: (run (shell "opam pin add -k version -yn ocamlformat-lib.0.26.0 0.26.0"))
ocamlformat-lib is now pinned to version 0.26.0
2026-03-23 09:20.50 ---> saved as "f5312ef2b4fc11fec738171ceeee7105683b93e8c6c310df546e8e906c333152"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall ocamlformat-lib.0.26.0;\
                        \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 \"$pkg\" != 'ocamlformat-lib.0.26.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
ocamlformat-lib.0.26.0 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 5.4.0
    - ocamlformat-lib = 0.26.0 -> ocaml < 5.2 -> ocaml-variants (< 4.00.1~ | >= 4.00.1)
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - ocamlformat-lib = 0.26.0 -> ocaml < 5.2 -> 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 = "5.4.1" & (os != "win32" | sys-ocaml-libc = "msvc")'
    no matching version
  * Missing dependency:
    - ocamlformat-lib = 0.26.0 -> ocaml < 5.2 -> ocaml-variants >= 4.00.1 -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - ocamlformat-lib = 0.26.0 -> ocaml < 5.2 -> ocaml-variants >= 4.00.1 -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall ocamlformat-lib.0.26.0;
        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 "$pkg" != 'ocamlformat-lib.0.26.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-03-23 09:21.08: Job failed: Failed: Build failed
2026-03-23 09:21.08: Log analysis:
2026-03-23 09:21.08: >>> 
No solution found, exiting
 (score = 100)
2026-03-23 09:21.08: [SKIP] Package not available