(for PR #29582)

2026-03-25 08:40.00: New job: build ocaml-compiler.5.3, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29582/head (fa5fb3a6a806e832e4c7791145889a6bbe8b64ef)
                              on centos-9-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29582/head" && git reset --hard fa5fb3a6
git fetch origin master
git merge --no-edit 7216d2e0eb5d8d116434228a0b19a267b98e8510
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-9-ocaml-4.14@sha256:bfecbee3ea5ee8eb2a58569da4b0d492889cf8dac348061f522157428cae5bf2
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ocaml-compiler.5.3 5.3
RUN opam reinstall --update-invariant ocaml-compiler.5.3; \
    res=$?; \
    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 "\"centos-9\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'ocaml-compiler.5.3' && partial_fails="$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 .

2026-03-25 08:40.00: Using cache hint "ocaml/opam:centos-9-ocaml-4.14@sha256:bfecbee3ea5ee8eb2a58569da4b0d492889cf8dac348061f522157428cae5bf2-ocaml-compiler.5.3-fa5fb3a6a806e832e4c7791145889a6bbe8b64ef"
2026-03-25 08:40.00: Using OBuilder spec:
((from ocaml/opam:centos-9-ocaml-4.14@sha256:bfecbee3ea5ee8eb2a58569da4b0d492889cf8dac348061f522157428cae5bf2)
 (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 ocaml-compiler.5.3 5.3"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall --update-invariant ocaml-compiler.5.3;\
             \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 \"\\\"centos-9\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'ocaml-compiler.5.3' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-25 08:40.00: Waiting for resource in pool OCluster
2026-03-25 09:04.20: Waiting for worker…
2026-03-25 09:08.05: Got resource from pool OCluster
Building on eumache.caelum.ci.dev
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HEAD is now at 7216d2e0eb Merge pull request #29593 from arvidj/aj/avoid-passage-0-3-2-3
Merge made by the 'ort' strategy.
 packages/ocaml-compiler/ocaml-compiler.5.3.0/opam      |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.3/opam        |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.4.0/opam      |  5 ++++-
 .../ocaml-compiler/ocaml-compiler.5.4.0~alpha1/opam    |  5 ++++-
 .../ocaml-compiler/ocaml-compiler.5.4.0~beta1/opam     |  5 ++++-
 .../ocaml-compiler/ocaml-compiler.5.4.0~beta2/opam     |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.4.0~rc1/opam  |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.4.1/opam      |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.4/opam        |  5 ++++-
 .../ocaml-compiler/ocaml-compiler.5.5.0~alpha1/opam    |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.5/opam        |  5 ++++-
 packages/ocaml-compiler/ocaml-compiler.5.6/opam        |  5 ++++-
 packages/ocaml-option-llvm/ocaml-option-llvm.1/opam    | 18 ++++++++++++++++++
 .../ocaml-options-vanilla/ocaml-options-vanilla.1/opam |  1 +
 packages/ocaml-variants/ocaml-variants.5.2.0+msvc/opam |  2 ++
 15 files changed, 69 insertions(+), 12 deletions(-)
 create mode 100644 packages/ocaml-option-llvm/ocaml-option-llvm.1/opam

(from ocaml/opam:centos-9-ocaml-4.14@sha256:bfecbee3ea5ee8eb2a58569da4b0d492889cf8dac348061f522157428cae5bf2)
Unable to find image 'ocaml/opam:centos-9-ocaml-4.14@sha256:bfecbee3ea5ee8eb2a58569da4b0d492889cf8dac348061f522157428cae5bf2' locally
docker.io/ocaml/opam@sha256:bfecbee3ea5ee8eb2a58569da4b0d492889cf8dac348061f522157428cae5bf2: Pulling from ocaml/opam
c9a190a2c78b: Already exists
34973f5c8dd0: Already exists
8931bcc76d25: Already exists
21ff7586ef62: Already exists
8244c7261d2e: Already exists
Digest: sha256:bfecbee3ea5ee8eb2a58569da4b0d492889cf8dac348061f522157428cae5bf2
Status: Downloaded newer image for ocaml/opam@sha256:bfecbee3ea5ee8eb2a58569da4b0d492889cf8dac348061f522157428cae5bf2
2026-03-25 09:08.08 ---> using "39c8d5146964bf75fba29a1191d510792f3a665d312a584e6df2163d81c4454d" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-25 09:08.08 ---> using "5b5359ba29bf733e45d9cb0b7689f141a2ca5518f65321e1865619afc033eb4f" 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
2026-03-25 09:08.08 ---> using "133e6fc09511851ba3e1b3493a6e4b4859a080ed7162786c566cdd853d631434" 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=linux os-distribution=centos os-version=9
# 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
2026-03-25 09:08.08 ---> using "97d2442bbef07468879548e5f81417937b697182b939c6ebd7de6b112dca7f98" 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/"))
2026-03-25 09:08.08 ---> using "69c09fa5e0480cd353204ac6380452c097df1d501a5e612bde97619ad88d137f" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-25 09:08.09 ---> using "ec88b5590798db19171d343a87f77753721515bd5647e250f04a54eaf67e7b27" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-25 09:08.26 ---> saved as "dc09a97228ae610faf1b096ada4cdfb53d8072694c47a5e9471ee38dc731852a"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 9 - BaseOS                         90 kB/s |  14 kB     00:00    
- CentOS Stream 9 - BaseOS                         14 MB/s | 8.9 MB     00:00    
- CentOS Stream 9 - AppStream                     114 kB/s |  15 kB     00:00    
- CentOS Stream 9 - AppStream                      13 MB/s |  27 MB     00:02    
- CentOS Stream 9 - CRB                            63 kB/s |  14 kB     00:00    
- CentOS Stream 9 - CRB                           3.4 MB/s | 8.0 MB     00:02    
- CentOS Stream 9 - Extras packages                75 kB/s |  15 kB     00:00    
- CentOS Stream 9 - Extras packages               101 kB/s |  21 kB     00:00    
- Metadata cache created.
2026-03-25 09:08.50 ---> saved as "0320551ccd450ce7518082981694bae765bf42ab8e22f22ddf86c59b4126f72d"

/home/opam: (run (shell "opam pin add -k version -yn ocaml-compiler.5.3 5.3"))
ocaml-compiler is now pinned to version 5.3
2026-03-25 09:08.52 ---> saved as "ee67241323c0130a1f887fad0d69f28e8379ca17f5739e564886c7d04f86d9c6"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall --update-invariant ocaml-compiler.5.3;\
                        \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 \"\\\"centos-9\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'ocaml-compiler.5.3' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))

<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>

ocaml-compiler.5.3 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== remove 1 package
  - remove    ocaml-base-compiler 4.14.2 (pinned) [conflicts with ocaml-variants]
=== recompile 1 package
  - recompile opam-depext         1.2.3           [uses ocaml]
=== upgrade 2 packages
  - upgrade   ocaml               4.14.2 to 5.3.1 [uses ocaml-config]
  - upgrade   ocaml-config        2 to 3
=== install 7 packages
  - install   base-domains        base
  - install   base-effects        base
  - install   base-nnp            base
  - install   host-arch-x86_64    1
  - install   host-system-other   1
  - install   ocaml-compiler      5.3 (pinned)
  - install   ocaml-variants      5.3.1+trunk     [required by ocaml-config]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed host-arch-x86_64.1
-> installed host-system-other.1
-> retrieved ocaml-compiler.5.3  (https://github.com/ocaml/ocaml/archive/5.3.tar.gz)
-> retrieved ocaml-config.3  (cached)
-> retrieved opam-depext.1.2.3  (cached)
-> removed   opam-depext.1.2.3
-> removed   ocaml.4.14.2
-> removed   ocaml-config.2
-> removed   ocaml-base-compiler.4.14.2
-> installed ocaml-compiler.5.3
-> installed ocaml-variants.5.3.1+trunk
-> installed ocaml-config.3
-> installed ocaml.5.3.1
-> installed base-domains.base
-> installed base-effects.base
-> installed base-nnp.base
-> installed opam-depext.1.2.3
[NOTE] Switch invariant was updated to ["ocaml-variants" {= "5.3.1+trunk"}]
       Use `opam switch set-invariant' to change it.
Done.

<><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><>
=> opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
# To update the current shell environment, run: eval $(opam env)
2026-03-25 09:11.44 ---> saved as "f1e146f5b4342c6804a2f065b250155571512273a60f365cc95e6cfca1522a83"
Job succeeded
2026-03-25 09:11.50: Job succeeded