(not at the head of any monitored branch or PR)
2026-03-23 00:44.00: New job: build ocaml-compiler.5.6, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29582/head (9346fc968dbf5116a1b2dd2b5e0143bc06e9fa98)
                              on centos-9-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29582/head" && git reset --hard 9346fc96
git fetch origin master
git merge --no-edit 76bf2ed9443fdee37e6f046c6295d358be3f8598
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-9-ocaml-5.4@sha256:4aa844f3e0fcf82e7150a5346c293d808e7d7d667a9afd9a2b5e32b3078970cd
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ocaml-compiler.5.6 5.6
RUN opam reinstall --update-invariant ocaml-compiler.5.6; \
    res=$?; \
    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 "$pkg" != 'ocaml-compiler.5.6' && partial_fails="$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 00:44.00: Using cache hint "ocaml/opam:centos-9-ocaml-5.4@sha256:4aa844f3e0fcf82e7150a5346c293d808e7d7d667a9afd9a2b5e32b3078970cd-ocaml-compiler.5.6-9346fc968dbf5116a1b2dd2b5e0143bc06e9fa98"
2026-03-23 00:44.00: Using OBuilder spec:
((from ocaml/opam:centos-9-ocaml-5.4@sha256:4aa844f3e0fcf82e7150a5346c293d808e7d7d667a9afd9a2b5e32b3078970cd)
 (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.5.6 5.6"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall --update-invariant ocaml-compiler.5.6;\
             \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 \"$pkg\" != 'ocaml-compiler.5.6' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-23 00:44.00: Waiting for resource in pool OCluster
2026-03-23 00:58.28: Waiting for worker…
2026-03-23 01:02.47: Got resource from pool OCluster
Building on eumache
All commits already cached
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-5.4@sha256:4aa844f3e0fcf82e7150a5346c293d808e7d7d667a9afd9a2b5e32b3078970cd)
Unable to find image 'ocaml/opam:centos-9-ocaml-5.4@sha256:4aa844f3e0fcf82e7150a5346c293d808e7d7d667a9afd9a2b5e32b3078970cd' locally
docker.io/ocaml/opam@sha256:4aa844f3e0fcf82e7150a5346c293d808e7d7d667a9afd9a2b5e32b3078970cd: Pulling from ocaml/opam
b9c40dbae0c2: Already exists
4e0053673730: Already exists
37eaa45a1927: Already exists
c3614bf777be: Already exists
41a84cd00caf: Already exists
f86964614aeb: Already exists
4fdd860b1f10: Already exists
06b09f62348c: Already exists
2ec9bd0a30c7: Already exists
ebcb7255c70e: Already exists
a6fb6795e056: Already exists
3bda528a9109: Already exists
9cb4b67410d1: Already exists
1abcda2e7051: Already exists
b31df34f84bf: Already exists
2f5ef707aefe: Already exists
7cf6f9ab57b4: Already exists
29aa2ff6ad44: Already exists
29aa2ff6ad44: Already exists
9cdea3f532fd: Already exists
03bfd84eb3b2: Already exists
4e9bc0cbdad4: Already exists
7401bc4402e3: Already exists
4f4fb700ef54: Already exists
bfb5f1285eb4: Already exists
7c948d5d19ef: Already exists
96d104bca8af: Already exists
d3a98e577a6a: Already exists
c7b98c8cf365: Already exists
d4b3a3da19c1: Already exists
089b5149e170: Already exists
681a3e2ab234: Already exists
77119b4ff1fe: Already exists
e8e580686694: Already exists
b7fca56d5d5f: Already exists
14d282133814: Already exists
78acfe8ef117: Already exists
9909aea11be5: Already exists
8d8544ffe639: Already exists
854704def7be: Already exists
34e75ad85bc3: Already exists
cb99d3e2de27: Already exists
2d174a36a5fb: Already exists
54c2d4ca61e2: Already exists
62097b7a5153: Already exists
e3f17ffa4d3c: Already exists
9c33869ac8ab: Already exists
Digest: sha256:4aa844f3e0fcf82e7150a5346c293d808e7d7d667a9afd9a2b5e32b3078970cd
Status: Downloaded newer image for ocaml/opam@sha256:4aa844f3e0fcf82e7150a5346c293d808e7d7d667a9afd9a2b5e32b3078970cd
2026-03-23 01:03.38 ---> saved as "0e7e56f63340dc297b4fb11a5934361b3e78854b8ddde6f0f1f7157f70706e63"

/: (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 01:03.40 ---> saved as "55e830bab986365cd29692a64f776700643ff81244472a9b8f9217f41a1fd79b"

/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 01:04.14 ---> saved as "0da06b537cdccb2fa4c5074db691eb9229490349e6d7a77fd50474275ca3c357"

/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       5.4
# invariant            ["ocaml-base-compiler" {= "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       /home/opam/.opam/5.4/lib/ocaml/stublibs:/home/opam/.opam/5.4/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.0
2026-03-23 01:04.16 ---> saved as "8c66e02ad0de47b3f6679d7b052c6244fefd4ea1838533dd95b13ece61f41869"

/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 01:04.28 ---> saved as "38f9681f07c57f4eda5c80903f6564607721ae16d33473bfc6484b94e7d97ac1"

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-23 01:04.35 ---> saved as "5dc528d42e6adb312b169b25af057c01a73bcdf249a399a009d67ff3fdf2bffc"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-23 01:04.59 ---> saved as "3b0d71cd79607f79dd3c4600c87976b144c6e32a80bbbb97b762f7a95a1c44b5"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 9 - BaseOS                         92 kB/s |  15 kB     00:00    
- CentOS Stream 9 - BaseOS                        1.7 MB/s | 8.9 MB     00:05    
- CentOS Stream 9 - AppStream                      59 kB/s |  16 kB     00:00    
- CentOS Stream 9 - AppStream                     3.5 MB/s |  27 MB     00:07    
- CentOS Stream 9 - CRB                           102 kB/s |  15 kB     00:00    
- CentOS Stream 9 - CRB                            10 MB/s | 8.0 MB     00:00    
- CentOS Stream 9 - Extras packages               110 kB/s |  17 kB     00:00    
- Metadata cache created.
2026-03-23 01:05.31 ---> saved as "4de0c09bb90cc36f4306b4e05680d7860c57cb19c7282ccf395e67ea091bd370"

/home/opam: (run (shell "opam pin add -k version -yn ocaml-compiler.5.6 5.6"))
ocaml-compiler is now pinned to version 5.6
2026-03-23 01:05.33 ---> saved as "17d162a4357ccfddc47e3f2072e8418a4f57786e1d33f328156f295151c19bdc"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall --update-invariant ocaml-compiler.5.6;\
                        \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 \"$pkg\" != 'ocaml-compiler.5.6' && partial_fails=\"$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.5.6 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== remove 1 package
  - remove    ocaml-base-compiler 5.4.0 (pinned)        [conflicts with ocaml-compiler]
=== recompile 5 packages
  - recompile base-domains        base                  [uses ocaml]
  - recompile base-effects        base                  [uses ocaml]
  - recompile base-nnp            base                  [uses base-domains]
  - recompile ocaml-config        3                     [uses ocaml-base-compiler]
  - recompile opam-depext         1.2.3                 [uses ocaml]
=== upgrade 2 packages
  - upgrade   ocaml               5.4.0 to 5.6.0        [uses ocaml-variants]
  - upgrade   ocaml-compiler      5.4.0 to 5.6 (pinned)
=== install 3 packages
  - install   host-arch-x86_64    1
  - install   host-system-other   1
  - install   ocaml-variants      5.6.0+trunk           [required by ocaml-config]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved ocaml.5.6.0  (cached)
-> installed host-arch-x86_64.1
-> installed host-system-other.1
-> retrieved ocaml-compiler.5.6  (https://github.com/ocaml/ocaml/archive/trunk.tar.gz)
-> retrieved ocaml-config.3  (cached)
-> retrieved opam-depext.1.2.3  (cached)
-> removed   base-effects.base
-> removed   base-nnp.base
-> removed   base-domains.base
-> removed   opam-depext.1.2.3
-> removed   ocaml.5.4.0
-> removed   ocaml-config.3
-> removed   ocaml-base-compiler.5.4.0
-> removed   ocaml-compiler.5.4.0
-> installed ocaml-compiler.5.6
-> installed ocaml-variants.5.6.0+trunk
-> installed ocaml-config.3
-> installed ocaml.5.6.0
-> 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" {= "5.6.0+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)
2026-03-23 01:10.22 ---> saved as "d35f59af8fa67281ce9d95d2a1f17a1aacda4b026a4d45189c7d49ef2725f211"
Job succeeded
2026-03-23 01:10.38: Job succeeded