(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 fedora-42-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28849/head" && git reset --hard a71973e0
git fetch origin master
git merge --no-edit 21f97b2e6d7c617fc0a79cc8e59b2e10690960e1
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:fedora-42-ocaml-4.14@sha256:d6344a03c7dd73cf1f8acd87060e455ef56dd7e025c8a03e1073f1795f459313
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn mlcuddidl.3.0.8 3.0.8
RUN opam reinstall mlcuddidl.3.0.8; \
    res=$?; \
    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 "\"fedora-42\""; 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 "ocaml/opam:fedora-42-ocaml-4.14@sha256:d6344a03c7dd73cf1f8acd87060e455ef56dd7e025c8a03e1073f1795f459313-mlcuddidl.3.0.8-a71973e0b450bf4d9b7b3078e52c1a6c0c4486ac"
2025-11-10 11:01.03: Using OBuilder spec:
((from ocaml/opam:fedora-42-ocaml-4.14@sha256:d6344a03c7dd73cf1f8acd87060e455ef56dd7e025c8a03e1073f1795f459313)
 (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 mlcuddidl.3.0.8 3.0.8"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (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 \"\\\"fedora-42\\\"\"; 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 11:48.03: Waiting for worker…
2025-11-10 11:51.42: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
Updating files:  81% (15305/18704)
Updating files:  82% (15338/18704)
Updating files:  83% (15525/18704)
Updating files:  84% (15712/18704)
Updating files:  85% (15899/18704)
Updating files:  86% (16086/18704)
Updating files:  87% (16273/18704)
Updating files:  88% (16460/18704)
Updating files:  89% (16647/18704)
Updating files:  90% (16834/18704)
Updating files:  91% (17021/18704)
Updating files:  92% (17208/18704)
Updating files:  93% (17395/18704)
Updating files:  94% (17582/18704)
Updating files:  95% (17769/18704)
Updating files:  96% (17956/18704)
Updating files:  97% (18143/18704)
Updating files:  98% (18330/18704)
Updating files:  99% (18517/18704)
Updating files: 100% (18704/18704)
Updating files: 100% (18704/18704), done.
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 ocaml/opam:fedora-42-ocaml-4.14@sha256:d6344a03c7dd73cf1f8acd87060e455ef56dd7e025c8a03e1073f1795f459313)
Unable to find image 'ocaml/opam:fedora-42-ocaml-4.14@sha256:d6344a03c7dd73cf1f8acd87060e455ef56dd7e025c8a03e1073f1795f459313' locally
docker.io/ocaml/opam@sha256:d6344a03c7dd73cf1f8acd87060e455ef56dd7e025c8a03e1073f1795f459313: Pulling from ocaml/opam
a534787e6fcf: Pulling fs layer
a534787e6fcf: Verifying Checksum
a534787e6fcf: Download complete
a534787e6fcf: Pull complete
Digest: sha256:d6344a03c7dd73cf1f8acd87060e455ef56dd7e025c8a03e1073f1795f459313
Status: Downloaded newer image for ocaml/opam@sha256:d6344a03c7dd73cf1f8acd87060e455ef56dd7e025c8a03e1073f1795f459313
2025-11-10 11:51.45 ---> using "b0b7f9f0e97c317448cfec36dd0c4fa6e5a90602f94003ee98ef677446a93a41" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-11-10 11:51.45 ---> using "9e3d4d6e84a133d60c37d9656abc1e9965285e436dd8f6845e767b076261f977" 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
2025-11-10 11:51.45 ---> using "3c0939f81de8cc60382675c57086f2de7b337c035651824439944b3632f5c3cb" 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~alpha1
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=fedora os-version=42
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.14
# invariant            ["ocaml-base-compiler" {= "4.14.2"}]
# compiler-packages    ocaml-base-compiler.4.14.2, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.14/lib/ocaml/stublibs:/home/opam/.opam/4.14/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.14.2
2025-11-10 11:51.45 ---> using "a5f6bcc12f6d9aa36d5d0bd41ea6cee8cf2ad858bdb749fa277098a1854428b6" 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/"))
2025-11-10 11:51.45 ---> using "befc24de06d3f9eb27955e2cbfba6dfdde9059cb4c4386f98e2a974f3e2fa03a" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-11-10 11:51.56 ---> saved as "c3bc165f08dafcd14f0ef9c74062fd229e54fe3de9355a0cd0ad65e4bab36ea9"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-11-10 11:52.18 ---> saved as "75eb15d4713ec5dd9cc27abaee82de9405b28e36db31b88ecf9dc2c4bb17bc2d"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/sbin/sudo "yum" "makecache"
- Updating and loading repositories:
-  Fedora 42 - x86_64 - Updates           100% | 149.9 KiB/s |  19.3 KiB |  00m00s
- Repositories loaded.
- Metadata cache created.
2025-11-10 11:52.23 ---> saved as "2f889113776fbd0b7b163e272e637ba9c2c1ef9a177f1e11156a3d485f4cdbd9"

/home/opam: (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 11:52.25 ---> saved as "056d91bd99cdc64b53a7242492299a25a1b101cc0820a413e23d28967cf4ea54"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (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 \"\\\"fedora-42\\\"\"; 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  (cached)
-> retrieved mlcuddidl.3.0.8  (cached)
-> installed conf-m4.1
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> installed camlidl.1.13
-> installed ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> installed mlcuddidl.3.0.8
Done.
# To update the current shell environment, run: eval $(opam env)
2025-11-10 11:52.58 ---> saved as "6966ddbc995a91e731f95b6fe6ee958a3370fb75b81e748782aafc149d4ae184"
Job succeeded
2025-11-10 11:53.23: Job succeeded