(for PR #29929)

2026-05-20 11:19.40: New job: build embedded_ocaml_templates.0.8.1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29929/head (9002fdb7d59fe104e77fb515ef69be1381d12a14)
                              on centos-10-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29929/head" && git reset --hard 9002fdb7
git fetch origin master
git merge --no-edit 64a847a29e96527a72f3e45822610f25e7ad0a40
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-10-ocaml-5.4@sha256:6129d3efd221cc59eed393e8f9ffee9691b80628eb826293a7c47bc34832ed59
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn embedded_ocaml_templates.0.8.1 0.8.1
RUN opam reinstall embedded_ocaml_templates.0.8.1; \
    res=$?; \
    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-10\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'embedded_ocaml_templates.0.8.1' && partial_fails="$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 .

2026-05-20 11:19.40: Using cache hint "ocaml/opam:centos-10-ocaml-5.4@sha256:6129d3efd221cc59eed393e8f9ffee9691b80628eb826293a7c47bc34832ed59-embedded_ocaml_templates.0.8.1-9002fdb7d59fe104e77fb515ef69be1381d12a14"
2026-05-20 11:19.40: Using OBuilder spec:
((from ocaml/opam:centos-10-ocaml-5.4@sha256:6129d3efd221cc59eed393e8f9ffee9691b80628eb826293a7c47bc34832ed59)
 (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 embedded_ocaml_templates.0.8.1 0.8.1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall embedded_ocaml_templates.0.8.1;\
             \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-10\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'embedded_ocaml_templates.0.8.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-05-20 11:19.40: Waiting for resource in pool OCluster
2026-05-20 11:19.42: Waiting for worker…
2026-05-20 11:19.42: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at 64a847a29e Merge pull request #29924 from jmid/add-dune-3.23.0-ocaml-bound
Updating 64a847a29e..9002fdb7d5
Fast-forward
 .../embedded_ocaml_templates.0.8.1/opam            | 49 ++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 packages/embedded_ocaml_templates/embedded_ocaml_templates.0.8.1/opam

(from ocaml/opam:centos-10-ocaml-5.4@sha256:6129d3efd221cc59eed393e8f9ffee9691b80628eb826293a7c47bc34832ed59)
Unable to find image 'ocaml/opam:centos-10-ocaml-5.4@sha256:6129d3efd221cc59eed393e8f9ffee9691b80628eb826293a7c47bc34832ed59' locally
docker.io/ocaml/opam@sha256:6129d3efd221cc59eed393e8f9ffee9691b80628eb826293a7c47bc34832ed59: Pulling from ocaml/opam
fd8e0b0eefd7: Already exists
db8861ce9493: Already exists
50a2d95a38ed: Already exists
31460203772c: Already exists
6d183a4d8cb8: Already exists
8a40fa767f7d: Already exists
f6946abca931: Already exists
0afd7ea846ca: Already exists
9eedfa159b6c: Already exists
60d233553a71: Already exists
6a73bd7d349c: Already exists
413542ed97af: Already exists
9533f26799d5: Already exists
7198f65fde0c: Already exists
e94def20e9fe: Already exists
753a93dc1978: Already exists
a45513c1d034: Already exists
a45513c1d034: Already exists
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ff69d9bd12a0: Already exists
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3375901daef5: Already exists
efbe2cac90af: Already exists
82a4c0c166a3: Already exists
9ba826da2507: Already exists
4f4fb700ef54: Already exists
ffc9f33c8781: Already exists
87990e1e6594: Pulling fs layer
c4b7cdfade0e: Pulling fs layer
b1e36a6b484d: Pulling fs layer
8db11aca5ba5: Pulling fs layer
53017eddbf5a: Pulling fs layer
8db11aca5ba5: Waiting
53017eddbf5a: Waiting
87990e1e6594: Verifying Checksum
87990e1e6594: Download complete
b1e36a6b484d: Download complete
87990e1e6594: Pull complete
8db11aca5ba5: Download complete
c4b7cdfade0e: Verifying Checksum
c4b7cdfade0e: Download complete
53017eddbf5a: Verifying Checksum
53017eddbf5a: Download complete
c4b7cdfade0e: Pull complete
b1e36a6b484d: Pull complete
8db11aca5ba5: Pull complete
53017eddbf5a: Pull complete
Digest: sha256:6129d3efd221cc59eed393e8f9ffee9691b80628eb826293a7c47bc34832ed59
Status: Downloaded newer image for ocaml/opam@sha256:6129d3efd221cc59eed393e8f9ffee9691b80628eb826293a7c47bc34832ed59
2026-05-20 11:20.55 ---> saved as "0ac1e0c26c748004c1c1d16d31e4555f6db15fdf42d922e651734c9a410d70a5"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-05-20 11:20.56 ---> saved as "49cd5e9e21712f6b5a487c4acaaeae5b180e50cecaaa9ce0d71918cb9ddaaa8a"

/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 2.1 to version 2.2, which can't be reverted.
You may want to back it up before going further.

[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
Continue? [Y/n] y
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes from git+file:///home/opam/opam-repository
2026-05-20 11:21.06 ---> saved as "e1e26248408cac0a43ddc244ba9e28c751c7c9230fc6c60d02ae9d5db6c9e2d3"

/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         2.5.1
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=centos os-version=10
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 255
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       5.4
# invariant            ["ocaml-base-compiler" {= "5.4.1"}]
# compiler-packages    ocaml-base-compiler.5.4.1, ocaml-compiler.5.4.1, 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       5.4.1
2026-05-20 11:21.06 ---> saved as "9f946a90ebd5c715a8f8b5584301e42079d7699e7118b2b09e0a0907ec8d30e0"

/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/"))
2026-05-20 11:21.16 ---> saved as "966c262249320636ca0125fa95d1871d230f1d7825e8f3b1bb8e665b4e199dcc"

/home/opam: (copy (src .) (dst opam-repository/))
2026-05-20 11:21.20 ---> saved as "8f6697f558f7e353750f7abc4629c6a971c96c940d8b96a0a13595beaca452c1"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-05-20 11:21.30 ---> saved as "6dfd072d6263068a6c02b03bc00a1d8766ef2762a681e5a6e096c9c54cbd7e89"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 10 - BaseOS                       7.5 kB/s |  14 kB     00:01    
- CentOS Stream 10 - BaseOS                        10 MB/s | 7.0 MB     00:00    
- CentOS Stream 10 - AppStream                    113 kB/s |  14 kB     00:00    
- CentOS Stream 10 - AppStream                    7.5 MB/s | 3.6 MB     00:00    
- CentOS Stream 10 - CRB                           62 kB/s |  14 kB     00:00    
- CentOS Stream 10 - CRB                          3.5 MB/s | 839 kB     00:00    
- CentOS Stream 10 - Extras packages              134 kB/s |  16 kB     00:00    
- Metadata cache created.
2026-05-20 11:21.36 ---> saved as "b119befe7e49d77aa3765e2b380be0137d7e5a09e4cc7f9ff04e7dcc66890ec3"

/home/opam: (run (shell "opam pin add -k version -yn embedded_ocaml_templates.0.8.1 0.8.1"))
embedded_ocaml_templates is now pinned to version 0.8.1
2026-05-20 11:21.37 ---> saved as "9a360481b23c13228ca1457bc6e7dd62de0a169f94020d33b4854b8c0003f02a"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall embedded_ocaml_templates.0.8.1;\
                        \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-10\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'embedded_ocaml_templates.0.8.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
embedded_ocaml_templates.0.8.1 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 19 packages
  - install containers               3.18           [required by embedded_ocaml_templates]
  - install csexp                    1.5.2          [required by dune-configurator]
  - install dune                     3.23.1         [required by embedded_ocaml_templates]
  - install dune-configurator        3.23.1         [required by containers]
  - install either                   1.0.0          [required by containers]
  - install embedded_ocaml_templates 0.8.1 (pinned)
  - install gen                      1.1            [required by sedlex]
  - install ocaml-compiler-libs      v0.17.0        [required by ppxlib]
  - install ocamlbuild               0.16.1         [required by uutf]
  - install ocamlfind                1.9.8          [required by uutf]
  - install pprint                   20230830       [required by embedded_ocaml_templates]
  - install ppx_derivers             1.2.1          [required by ppxlib]
  - install ppxlib                   0.38.0         [required by embedded_ocaml_templates]
  - install sedlex                   3.7            [required by embedded_ocaml_templates]
  - install seq                      base           [required by gen]
  - install sexplib0                 v0.17.0        [required by ppxlib]
  - install stdlib-shims             0.3.0          [required by ppxlib]
  - install topkg                    1.1.1          [required by uutf]
  - install uutf                     1.0.4          [required by embedded_ocaml_templates]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved containers.3.18  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved dune.3.23.1, dune-configurator.3.23.1  (cached)
-> retrieved either.1.0.0  (cached)
-> retrieved embedded_ocaml_templates.0.8.1  (cached)
-> retrieved gen.1.1  (cached)
-> retrieved ocaml-compiler-libs.v0.17.0  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved pprint.20230830  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppxlib.0.38.0  (cached)
-> retrieved sedlex.3.7  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved uutf.1.0.4  (cached)
-> installed ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed uutf.1.0.4
-> installed dune.3.23.1
-> installed csexp.1.5.2
-> installed either.1.0.0
-> installed gen.1.1
-> installed ocaml-compiler-libs.v0.17.0
-> installed pprint.20230830
-> installed ppx_derivers.1.2.1
-> installed sexplib0.v0.17.0
-> installed stdlib-shims.0.3.0
-> installed dune-configurator.3.23.1
-> installed containers.3.18
-> installed ppxlib.0.38.0
-> installed sedlex.3.7
-> installed embedded_ocaml_templates.0.8.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-05-20 11:22.31 ---> saved as "b300582304a1d89c48821a4f8c5de396d9b44996631fec7d7ef061c784c9a9ce"
Job succeeded
2026-05-20 11:22.38: Job succeeded