(for PR #28849)

2025-11-10 11:01.03: New job: build mlcuddidl.3.0.8, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28849/head (a71973e0b450bf4d9b7b3078e52c1a6c0c4486ac)
                              on macos-homebrew-ocaml-5.4/arm64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28849/head" && git reset --hard a71973e0
git fetch origin master
git merge --no-edit 21f97b2e6d7c617fc0a79cc8e59b2e10690960e1
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM macos-homebrew-ocaml-5.4
USER 1000:1000
RUN ln -f ~/local/bin/opam-dev ~/local/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url -k local --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn mlcuddidl.3.0.8 3.0.8
RUN opam reinstall mlcuddidl.3.0.8; \
    res=$?; \
    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 "\"macos-homebrew\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'mlcuddidl.3.0.8' && partial_fails="$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 .

2025-11-10 11:01.03: Using cache hint "macos-homebrew-ocaml-5.4-mlcuddidl.3.0.8-a71973e0b450bf4d9b7b3078e52c1a6c0c4486ac"
2025-11-10 11:01.03: Using OBuilder spec:
((from macos-homebrew-ocaml-5.4)
 (user (uid 1000) (gid 1000))
 (run (shell "ln -f ~/local/bin/opam-dev ~/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 -k local --strict default opam-repository/"))
 (run (network host)
      (shell "opam update --depexts || true"))
 (run (shell "opam pin add -k version -yn mlcuddidl.3.0.8 3.0.8"))
 (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))
      (network host)
      (shell  "opam reinstall mlcuddidl.3.0.8;\
             \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 \"\\\"macos-homebrew\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'mlcuddidl.3.0.8' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-11-10 11:01.03: Waiting for resource in pool OCluster
2025-11-10 11:01.03: Waiting for worker…
2025-11-10 11:13.55: Got resource from pool OCluster
Building on m1-worker-02
All commits already cached
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HEAD is now at 21f97b2e6d Merge pull request #28836 from dbuenzli/b0-publish-bytesrw.0.3.0
Merge made by the 'ort' strategy.
 .../mlcuddidl.3.0.8/files/compilation_ocaml5.diff  | 98 ++++++++++++++++++++++
 .../mlcuddidl.3.0.8/files/exn_init_val_unit.diff   | 15 ++++
 packages/mlcuddidl/mlcuddidl.3.0.8/opam            | 18 +++-
 3 files changed, 130 insertions(+), 1 deletion(-)
 create mode 100644 packages/mlcuddidl/mlcuddidl.3.0.8/files/compilation_ocaml5.diff
 create mode 100644 packages/mlcuddidl/mlcuddidl.3.0.8/files/exn_init_val_unit.diff

(from macos-homebrew-ocaml-5.4)
2025-11-10 11:13.57 ---> using "338135fbf1889e924a607b47198b8b308c32a925cc9436066d65a9bdc402cad5" from cache

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

/: (run (shell "ln -f ~/local/bin/opam-dev ~/local/bin/opam"))
2025-11-10 11:13.58 ---> using "7aa34524ca0a69b4a488c30909f7495a04a243f9066091b1dfe73b446b0dfcd3" from cache

/: (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 /Users/mac1000/.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:///Users/mac1000/opam-repository
2025-11-10 11:13.58 ---> using "91dcaa513ca3161d91620d0583acdea5310cd52ccab1dfbdd183600da37afdb2" from cache

/: (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         2.4.1
# self-upgrade         no
# system               arch=arm64 os=macos os-distribution=homebrew os-version=15.5
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 7
# 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       /Users/mac1000/.opam/5.4.0/lib/ocaml/stublibs:/Users/mac1000/.opam/5.4.0/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.0
2025-11-10 11:13.58 ---> using "cea1bfc0b1cda73d964aa2fc69cc828a6e6d8edd86f991754707e8b004a3cb09" from cache

/: (env OPAMDOWNLOADJOBS 1)

/: (env OPAMERRLOGLEN 0)

/: (env OPAMPRECISETRACKING 1)

/: (env CI true)

/: (env OPAM_REPO_CI true)

/: (run (shell "rm -rf opam-repository/"))
2025-11-10 11:13.58 ---> using "e3eba35b672d86e69268bbb9214f23a1f9d1fb0787b4d803840af8d45829b222" from cache

/: (copy (src .) (dst opam-repository/))
2025-11-10 11:13.59 ---> using "a0a90631e20a73be2f819d35d648e00377a58c575dd33b75c0ac146023e12384" from cache

/: (run (shell "opam repository set-url -k local --strict default opam-repository/"))
[default] Initialised
2025-11-10 11:13.59 ---> using "08b3fb80b14c66b3487562ba99a99144d063546ceaba283b2e4b865a9f338e2f" from cache

/: (run (network host)
        (shell "opam update --depexts || true"))
+ /opt/homebrew/bin/brew "update"
- ==> Updating Homebrew...
- ==> Homebrew collects anonymous analytics.
- Read the analytics documentation (and how to opt-out) here:
-   https://docs.brew.sh/Analytics
- No analytics have been recorded yet (nor will be during this `brew` run).
- 
- ==> Homebrew is run entirely by unpaid volunteers. Please consider donating:
-   https://github.com/Homebrew/brew#donations
- 
- Already up-to-date.
2025-11-10 11:13.59 ---> using "64bfa35424ea34354bdceb154c088965272b3f4903fc5554742faa352f973ff4" from cache

/: (run (shell "opam pin add -k version -yn mlcuddidl.3.0.8 3.0.8"))
mlcuddidl is now pinned to version 3.0.8
2025-11-10 11:14.00 ---> using "52df1f06a9c80cdecf268ba6e4a4d4a741023954c51083b55c7bb97f9e2c9071" from cache

/: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))
        (network host)
        (shell  "opam reinstall mlcuddidl.3.0.8;\
               \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 \"\\\"macos-homebrew\\\"\"; then\
               \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
               \n          fi;\
               \n          test \"$pkg\" != 'mlcuddidl.3.0.8' && partial_fails=\"$partial_fails $pkg\";\
               \n        done;\
               \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
               \n        exit 1"))
mlcuddidl.3.0.8 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 5 packages
  - install camlidl    1.13           [required by mlcuddidl]
  - install conf-m4    1              [required by mlcuddidl]
  - install mlcuddidl  3.0.8 (pinned)
  - install ocamlbuild 0.16.1         [required by mlcuddidl]
  - install ocamlfind  1.9.8          [required by mlcuddidl]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved camlidl.1.13  (https://github.com/xavierleroy/camlidl/archive/camlidl113.tar.gz)
-> installed conf-m4.1
-> installed camlidl.1.13
-> retrieved mlcuddidl.3.0.8  (https://framagit.org/nberth/mlcuddidl/-/archive/3.0.8/mlcuddidl-3.0.8.tar.gz)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> installed ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> installed mlcuddidl.3.0.8
Done.

<><> mlcuddidl.3.0.8 installed successfully <><><><><><><><><><><><><><><><><><>
=> For supporting ocaml 5 some modules are removed compared to the release
# To update the current shell environment, run: eval $(opam env)
2025-11-10 11:14.00 ---> using "14fbe82091a18473d6352215d8d1db677839a64bfc136235f2b78469fc633ced" from cache
Job succeeded
2025-11-10 11:14.08: Job succeeded