(for PR #29312)

2026-01-30 20:43.29: New job: build matrix.0.1.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29312/head (4219a994291bbd7606c64e62833ff523b0ca72c2)
                              on debian-13-ocaml-5.4/arm32v7

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29312/head" && git reset --hard 4219a994
git fetch origin master
git merge --no-edit 0758d335cb8d1367e501844fb86be0b07e4918ac
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:ff1aba44f37283361bc57169690ccfbdbfda89574dff3e1e37e356b248a97ea6
SHELL [ "/usr/bin/linux32", "/bin/sh", "-c" ]
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn matrix.0.1.0 0.1.0
RUN opam reinstall matrix.0.1.0; \
    res=$?; \
    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 "\"debian-13\""; 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 20:43.29: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:ff1aba44f37283361bc57169690ccfbdbfda89574dff3e1e37e356b248a97ea6-matrix.0.1.0-4219a994291bbd7606c64e62833ff523b0ca72c2"
2026-01-30 20:43.29: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:ff1aba44f37283361bc57169690ccfbdbfda89574dff3e1e37e356b248a97ea6)
 (shell /usr/bin/linux32 /bin/sh -c)
 (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 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 \"\\\"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 \"$pkg\" != 'matrix.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-30 20:43.29: Waiting for resource in pool OCluster
2026-01-30 20:43.29: Waiting for worker…
2026-01-30 21:35.33: Got resource from pool OCluster
Building on ainia.caelum.ci.dev
All commits already cached
Updating files:  68% (13223/19320)
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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 ocaml/opam:debian-13-ocaml-5.4@sha256:ff1aba44f37283361bc57169690ccfbdbfda89574dff3e1e37e356b248a97ea6)
Unable to find image 'ocaml/opam:debian-13-ocaml-5.4@sha256:ff1aba44f37283361bc57169690ccfbdbfda89574dff3e1e37e356b248a97ea6' locally
docker.io/ocaml/opam@sha256:ff1aba44f37283361bc57169690ccfbdbfda89574dff3e1e37e356b248a97ea6: Pulling from ocaml/opam
0f4296a8ece8: Already exists
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Digest: sha256:ff1aba44f37283361bc57169690ccfbdbfda89574dff3e1e37e356b248a97ea6
Status: Downloaded newer image for ocaml/opam@sha256:ff1aba44f37283361bc57169690ccfbdbfda89574dff3e1e37e356b248a97ea6
2026-01-30 21:35.37 ---> using "7464764099c09615940488c2d22f3d12f2dad3c24e31fc247a287f3a1c2d173e" from cache

/: (shell /usr/bin/linux32 /bin/sh -c)

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-30 21:35.37 ---> using "205cc6ee6f3e548bab4440ffbf5aab41900520eb76e2daf0c17018acf16f75a9" 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.

Continue? [Y/n] y
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.

Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-01-30 21:35.37 ---> using "160c6c2c8778c2a660ea039cb6f1943367f6224683c503130199bc40316f1ba4" 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=arm32 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                 79
# 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-option-bytecode-only.1, ocaml-options-vanilla.1
# ocaml:native         false
# ocaml:native-tools   false
# ocaml:native-dynlink false
# 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+bytecode-only
2026-01-30 21:35.37 ---> using "23f13fa36f6d4832c86066a73e5c4f1d68eec9c8f9c4630b5a25eec9b7fc022b" 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 21:35.37 ---> using "c9eab12d9407a5aa6f0b6ecbb2f954d2e06e8154a1feffae7820ec7df31de27f" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-30 21:35.38 ---> using "c9b063ea0f6c43b3f0ba7a9756bce3aeb8f08b429d9e38447aa03964a8009777" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-30 21:35.38 ---> using "ee5705e614144a40be1584f4e2ae306e44dae87838525a440f45a1d30d9171c4" from cache

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian trixie InRelease
- 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-security trixie-security/main armhf Packages [92.4 kB]
- Fetched 183 kB in 0s (1117 kB/s)
- Reading package lists...
- 
2026-01-30 21:35.38 ---> using "989edcf9bc95d34f1304ed83570420789cb1b59ce558cbac454fffb1b3d8866b" from cache

/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 21:35.39 ---> saved as "811cf175fb903800195e07193370c2aa6653087350d0d2a5213d0facf7a3e48e"

/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 \"\\\"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 \"$pkg\" != 'matrix.0.1.0' && partial_fails=\"$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
  - install dune   3.21.0         [required by matrix]
  - install matrix 0.1.0 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved dune.3.21.0  (cached)
-> retrieved matrix.0.1.0  (cached)
-> installed dune.3.21.0
[ERROR] The compilation of matrix.0.1.0 failed at "dune build -p matrix -j 79 @install".

#=== ERROR while compiling matrix.0.1.0 =======================================#
# context              2.5.0 | linux/arm32 | 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/.opam-switch/build/matrix.0.1.0
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p matrix -j 79 @install
# exit-code            1
# env-file             ~/.opam/log/matrix-7-407d74.env
# output-file          ~/.opam/log/matrix-7-407d74.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
# (cd _build/default && /home/opam/.opam/5.4/bin/ocamlc -w -40 -g -bin-annot -bin-annot-occurrences -I matrix/lib/ansi/.ansi.objs/byte -cmi-file matrix/lib/ansi/.ansi.objs/byte/ansi__Escape.cmi -no-alias-deps -open Ansi__ -o matrix/lib/ansi/.ansi.objs/byte/ansi__Escape.cmo -c -impl matrix/lib/ansi/escape.ml)
# File "matrix/lib/ansi/escape.ml", line 71, characters 4-15:
# 71 |     10000000000;
#          ^^^^^^^^^^^
# Error: Integer literal exceeds the range of representable integers of type int



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build matrix 0.1.0
+- 
+- The following changes have been performed
| - install dune 3.21.0
+- 
# To update the current shell environment, run: eval $(opam env)

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/5.4/.opam-switch/backup/state-20260130213539.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.
"/usr/bin/linux32" "/bin/sh" "-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 "\"debian-13\""; 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 21:36.48: Job failed: Failed: Build failed
2026-01-30 21:36.48: Log analysis:
2026-01-30 21:36.48: >>> 
[ERROR] The compilation of matrix.0.1.0 failed at "dune build -p matrix -j 79 @install".
 (score = 20)
2026-01-30 21:36.48: >>> 
# Error: Library "ppx_expect" not found.
 (score = 48)
2026-01-30 21:36.48: >>> 
# Error: Integer literal exceeds the range of representable integers of type int
 (score = 48)
2026-01-30 21:36.48: Library "ppx_expect" not found.