(not at the head of any monitored branch or PR)
2026-03-23 00:44.01: New job: build ocaml-compiler.5.5.0~alpha1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29582/head (9346fc968dbf5116a1b2dd2b5e0143bc06e9fa98)
                              on centos-9-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29582/head" && git reset --hard 9346fc96
git fetch origin master
git merge --no-edit 76bf2ed9443fdee37e6f046c6295d358be3f8598
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-9-ocaml-4.14@sha256:0900beacae8621f323ae8f23cb0c84d34819b86679df1d8c964e158a4d4bde88
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ocaml-compiler.5.5.0~alpha1 5.5.0~alpha1
RUN opam reinstall --update-invariant ocaml-compiler.5.5.0~alpha1; \
    res=$?; \
    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 "$pkg" != 'ocaml-compiler.5.5.0~alpha1' && partial_fails="$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 .

2026-03-23 00:44.01: Using cache hint "ocaml/opam:centos-9-ocaml-4.14@sha256:0900beacae8621f323ae8f23cb0c84d34819b86679df1d8c964e158a4d4bde88-ocaml-compiler.5.5.0~alpha1-9346fc968dbf5116a1b2dd2b5e0143bc06e9fa98"
2026-03-23 00:44.01: Using OBuilder spec:
((from ocaml/opam:centos-9-ocaml-4.14@sha256:0900beacae8621f323ae8f23cb0c84d34819b86679df1d8c964e158a4d4bde88)
 (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.5.5.0~alpha1 5.5.0~alpha1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall --update-invariant ocaml-compiler.5.5.0~alpha1;\
             \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 \"$pkg\" != 'ocaml-compiler.5.5.0~alpha1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-23 00:44.01: Waiting for resource in pool OCluster
2026-03-23 01:09.35: Waiting for worker…
2026-03-23 01:13.53: Got resource from pool OCluster
Building on clete
All commits already cached
Updating files:  69% (12855/18510)
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Updating files: 100% (18510/18510), done.
HEAD is now at 76bf2ed944 Merge pull request #29572 from hannesm/release-letsencrypt-v2.0.0
Updating 76bf2ed944..9346fc968d
Fast-forward
 packages/ocaml-compiler/ocaml-compiler.5.3.0/opam           |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.3/opam             |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.4.0/opam           |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.4.0~alpha1/opam    |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.4.0~beta1/opam     |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.4.0~beta2/opam     |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.4.0~rc1/opam       |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.4.1/opam           |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.4/opam             |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.5.0~alpha1/opam    |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.5/opam             |  2 ++
 packages/ocaml-compiler/ocaml-compiler.5.6/opam             |  2 ++
 packages/ocaml-option-clang-cl/ocaml-option-clang-cl.1/opam | 13 +++++++++++++
 packages/ocaml-options-vanilla/ocaml-options-vanilla.1/opam |  1 +
 packages/ocaml-variants/ocaml-variants.5.2.0+msvc/opam      |  2 ++
 15 files changed, 40 insertions(+)
 create mode 100644 packages/ocaml-option-clang-cl/ocaml-option-clang-cl.1/opam

(from ocaml/opam:centos-9-ocaml-4.14@sha256:0900beacae8621f323ae8f23cb0c84d34819b86679df1d8c964e158a4d4bde88)
2026-03-23 01:14.31 ---> saved as "dac63719edf1fb21abdbd4be411809fd1fc4ba1e61f121a32295e1441c2ad5f6"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-23 01:14.31 ---> saved as "71dbb97d71e6460b05ec32d11b70da123019d56301d3bf840b8da494222830b7"

/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
2026-03-23 01:15.14 ---> saved as "cc7810378f1cc4ff5018728cd84c3f8d59184450cb20ac13dae814bdf947e85d"

/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
2026-03-23 01:15.16 ---> saved as "8ae7199532a3bd978c316c7676fa3a4e0e477331048be7cf0634cf98fb60228a"

/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/"))
2026-03-23 01:15.36 ---> saved as "ec3c59830e7a9d178c0cd7d8c55035b3d6e78426eda3fc9454ced8a7aa5a7b3e"

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-23 01:15.48 ---> saved as "11b28146c95bfef45a6a99eafca720ba74cd98eb2af93e7c0f25b0096dd980ee"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-23 01:16.17 ---> saved as "caf3e66eb3e840930166dcc7b300fcaa561be8c363192afc5bd5be44d9b7beed"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 9 - BaseOS                         66 kB/s |  15 kB     00:00    
- CentOS Stream 9 - BaseOS                         14 MB/s | 8.9 MB     00:00    
- CentOS Stream 9 - AppStream                     117 kB/s |  16 kB     00:00    
- CentOS Stream 9 - AppStream                      14 MB/s |  27 MB     00:01    
- CentOS Stream 9 - CRB                           113 kB/s |  15 kB     00:00    
- CentOS Stream 9 - CRB                            10 MB/s | 8.0 MB     00:00    
- CentOS Stream 9 - Extras packages               128 kB/s |  17 kB     00:00    
- Metadata cache created.
2026-03-23 01:16.39 ---> saved as "0b0b8c69cdf3640fb1f70b539d551032a636762382f56c3d008e626babe6473d"

/home/opam: (run (shell "opam pin add -k version -yn ocaml-compiler.5.5.0~alpha1 5.5.0~alpha1"))
ocaml-compiler is now pinned to version 5.5.0~alpha1
2026-03-23 01:16.41 ---> saved as "4fb5bba726c4c163b36c515910902d586a3270a1f30e18e5f00b3355e96a36fe"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall --update-invariant ocaml-compiler.5.5.0~alpha1;\
                        \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 \"$pkg\" != 'ocaml-compiler.5.5.0~alpha1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
ocaml-compiler.5.5.0~alpha1 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 2 packages
  - recompile ocaml-config        2                     [uses ocaml-variants]
  - recompile opam-depext         1.2.3                 [uses ocaml]
=== upgrade 1 package
  - upgrade   ocaml               4.14.2 to 5.5.0
=== install 6 packages
  - install   base-domains        base
  - install   base-effects        base
  - install   base-nnp            base
  - install   compiler-cloning    enabled               [required by ocaml-compiler]
  - install   ocaml-compiler      5.5.0~alpha1 (pinned)
  - install   ocaml-variants      5.5.0~alpha1+options  [required by ocaml]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved ocaml.5.5.0  (cached)
-> installed compiler-cloning.enabled
-> retrieved ocaml-compiler.5.5.0~alpha1  (cached)
-> retrieved ocaml-config.2  (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.5.5.0~alpha1
-> installed ocaml-variants.5.5.0~alpha1+options
-> installed ocaml-config.2
-> installed ocaml.5.5.0
-> 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" {= "5.5.0~alpha1+options"}]
       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

<><> ocaml-compiler.5.5.0~alpha1 installed successfully <><><><><><><><><><><><>
=> This switch had to be compiled from sources, but future switches with the 🐌
   same compiler version and configuration should assemble instantly.
# To update the current shell environment, run: eval $(opam env)
2026-03-23 01:21.12 ---> saved as "888ad2da37022e97ea96772a6da3036d685dad270c59476b8508eb50ca35d57a"
Job succeeded
2026-03-23 01:21.20: Job succeeded