(for PR #29312)

2026-01-30 20:43.28: New job: build matrix.0.1.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29312/head (4219a994291bbd7606c64e62833ff523b0ca72c2)
                              on freebsd-14.3-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29312/head" && git reset --hard 4219a994
git fetch origin master
git merge --no-edit 0758d335cb8d1367e501844fb86be0b07e4918ac
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM freebsd-14.3-ocaml-5.4
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/local/bin/opam-dev /usr/local/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn matrix.0.1.0 0.1.0
RUN opam reinstall matrix.0.1.0; \
    res=$?; \
    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 "\"freebsd-14.3\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'matrix.0.1.0' && partial_fails="$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 .

2026-01-30 20:43.28: Using cache hint "freebsd-14.3-ocaml-5.4-matrix.0.1.0-4219a994291bbd7606c64e62833ff523b0ca72c2"
2026-01-30 20:43.28: Using OBuilder spec:
((from freebsd-14.3-ocaml-5.4)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/local/bin/opam-dev /usr/local/bin/opam"))
 (run (network host)
      (shell "opam init --reinit -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 matrix.0.1.0 0.1.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall matrix.0.1.0;\
             \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 \"\\\"freebsd-14.3\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'matrix.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-30 20:43.28: Waiting for resource in pool OCluster
2026-01-30 20:43.29: Waiting for worker…
2026-01-30 20:43.37: Got resource from pool OCluster
Building on rosemary
All commits already cached
Updating files: 100% (19320/19320), done.
HEAD is now at 0758d335cb Merge pull request #29298 from raphael-proust/opam-publish-lwt_ppx.5.9.3
Updating 0758d335cb..4219a99429
Fast-forward
 packages/matrix/matrix.0.1.0/opam | 42 +++++++++++++++++++++++++++++++++++
 packages/mosaic/mosaic.0.1.0/opam | 46 +++++++++++++++++++++++++++++++++++++++
 packages/toffee/toffee.0.1.0/opam | 41 ++++++++++++++++++++++++++++++++++
 3 files changed, 129 insertions(+)
 create mode 100644 packages/matrix/matrix.0.1.0/opam
 create mode 100644 packages/mosaic/mosaic.0.1.0/opam
 create mode 100644 packages/toffee/toffee.0.1.0/opam

(from freebsd-14.3-ocaml-5.4)
2026-01-30 20:41.04 ---> using "463e9b939b79b2568bf98b05cff00f85b3ec5717170cf88773a44ae3b08f11e7" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/local/bin/opam-dev /usr/local/bin/opam"))
2026-01-30 20:41.04 ---> using "0f4f38cca0f09ffdac905c0015fdbe56f9214c89e28a28ae3325cd6eed47fd99" from cache

/home/opam: (run (network host)
                 (shell "opam init --reinit -ni"))
No configuration file found, using 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 2.1 to version 2.2, which can't be reverted.
You may want to back it up before going further.

Continue? [Y/n] y
[NOTE] The 'jobs' option was reset, its value was 1 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:
           opam option jobs=1 --global
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes from git+file:///home/opam/opam-repository
2026-01-30 20:41.05 ---> using "430d75e95f6be08ef0776e6e6bb864bc698709d5f7d071fd7fbbf37d0a8617d5" 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=freebsd os-distribution=freebsd os-version=1403000
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 39
# repositories         1 (version-controlled)
# pinned               0
# current-switch       5.4.0
# invariant            ["ocaml-base-compiler" {= "5.4.0"} | "ocaml-system" {= "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/5.4.0/lib/ocaml/stublibs:/home/opam/.opam/5.4.0/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.0
2026-01-30 20:41.05 ---> using "8a5a57fecc1d42886ddc4a5b75b36583eef8196838ccdc1bf870bc7798f6f185" 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/"))
2026-01-30 20:41.06 ---> using "5d57b5e6a2b42d2aa72fb2cc8558fd5735263edde7f2032c7588b729f1b1565f" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-30 20:41.09 ---> using "80c112b29d67e1812babe5f85a24d7eab154093999b3b828302963cf108e8bb8" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-30 20:41.21 ---> saved as "96e32c8cf9c5b03f6260ff8f42d0c11b9bd49c0e2e39f9bbbbda0ad5dcc65297"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
[WARNING] Unknown update command for bsd, skipping system update
2026-01-30 20:41.27 ---> saved as "728962495ae3e1e590da5f603207c0846db961fc1bd51b95de8342befd35edc9"

/home/opam: (run (shell "opam pin add -k version -yn matrix.0.1.0 0.1.0"))
matrix is now pinned to version 0.1.0
2026-01-30 20:41.30 ---> saved as "753be68854e02deca924e451d8423fdf59f0f054f166acd732c63277c0737214"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall matrix.0.1.0;\
                        \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 \"\\\"freebsd-14.3\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'matrix.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
matrix.0.1.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 2 packages
  ∗ dune   3.21.0         [required by matrix]
  ∗ matrix 0.1.0 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
⬇ retrieved dune.3.21.0  (cached)
⬇ retrieved matrix.0.1.0  (https://github.com/tmattio/mosaic/releases/download/0.1.0/mosaic-0.1.0.tbz)
∗ installed dune.3.21.0
[ERROR] The compilation of matrix.0.1.0 failed at "dune build -p matrix -j 39 @install".

#=== ERROR while compiling matrix.0.1.0 =======================================#
# context              2.5.0 | freebsd/x86_64 | ocaml-base-compiler.5.4.0 | pinned(https://github.com/tmattio/mosaic/releases/download/0.1.0/mosaic-0.1.0.tbz)
# path                 ~/.opam/5.4.0/.opam-switch/build/matrix.0.1.0
# command              ~/.opam/5.4.0/bin/dune build -p matrix -j 39 @install
# exit-code            1
# env-file             ~/.opam/log/matrix-36569-64f1bf.env
# output-file          ~/.opam/log/matrix-36569-64f1bf.out
### output ###
# File "matrix/test/charts/dune", line 7, characters 7-17:
# 7 |   (pps ppx_expect)))
#            ^^^^^^^^^^
# Error: Library "ppx_expect" not found.
# -> required by library "test_charts" in _build/default/matrix/test/charts
# -> required by _build/default/META.matrix
# -> required by _build/install/default/lib/matrix/META
# -> required by _build/default/matrix.install
# -> required by alias install



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
┌─ The following actions failed
│ λ build matrix 0.1.0
└─ 
┌─ The following changes have been performed
│ ∗ install dune 3.21.0
└─ 

The former state can be restored with:
    /usr/local/bin/opam switch import "/home/opam/.opam/5.4.0/.opam-switch/backup/state-20260130204133.export"
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
jail: /usr/bin/su -l opam -c cd '/home/opam' && env OPAM_REPO_CI='true' CI='true' OPAMPRECISETRACKING='1' OPAMERRLOGLEN='0' OPAMDOWNLOADJOBS='1' '/usr/bin/env' 'bash' '-c' 'opam reinstall matrix.0.1.0;
        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 "\"freebsd-14.3\""; then
            echo "A package failed and has been disabled for CI using the '\''x-ci-accept-failures'\'' field.";
          fi;
          test "$pkg" != '\''matrix.0.1.0'\'' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1': failed
"jail" "-c" "name=obuilder_56181_87013" "mount.fstab=/tmp/obuilder-jail-1dd60d/fstab" "mount.devfs" "path=/obuilder/result/46e7a42b2e5e143e995b3c69394686ef7f95636b1c5f8e76ed9c947e3736cf25/rootfs" "host=inherit" "ip6=inherit" "ip4=inherit" "command=/usr/bin/su" "-l" "opam" "-c" "cd '/home/opam' && env OPAM_REPO_CI='true' CI='true' OPAMPRECISETRACKING='1' OPAMERRLOGLEN='0' OPAMDOWNLOADJOBS='1' '/usr/bin/env' 'bash' '-c' 'opam reinstall matrix.0.1.0;
        res=$?;
        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 "\"freebsd-14.3\""; then
            echo "A package failed and has been disabled for CI using the '\''x-ci-accept-failures'\'' field.";
          fi;
          test "$pkg" != '\''matrix.0.1.0'\'' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1'" failed with exit status 1
2026-01-30 20:46.23: Job failed: Failed: Build failed
2026-01-30 20:46.23: Log analysis:
2026-01-30 20:46.23: >>> 
[ERROR] The compilation of matrix.0.1.0 failed at "dune build -p matrix -j 39 @install".
 (score = 20)
2026-01-30 20:46.23: >>> 
# Error: Library "ppx_expect" not found.
 (score = 48)
2026-01-30 20:46.23: Library "ppx_expect" not found.