(for PR #28919)

2025-11-18 17:32.01: New job: build yocaml_syndication.2.7.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28919/head (d4ca2c8996e7b80cf11028ad8c43876c747e0880)
                              on centos-10-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28919/head" && git reset --hard d4ca2c89
git fetch origin master
git merge --no-edit 5b6623e1a6044ddcc5808644cab9ba88dfd5e8c3
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-10-ocaml-4.14@sha256:5d531be08818b220b8f4f43e2a8b8afee7ccd6bd899b4b33146dc7953241ae61
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn yocaml_syndication.2.7.0 2.7.0
RUN opam reinstall yocaml_syndication.2.7.0; \
    res=$?; \
    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 "$pkg" != 'yocaml_syndication.2.7.0' && partial_fails="$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 .

2025-11-18 17:32.01: Using cache hint "ocaml/opam:centos-10-ocaml-4.14@sha256:5d531be08818b220b8f4f43e2a8b8afee7ccd6bd899b4b33146dc7953241ae61-yocaml_syndication.2.7.0-d4ca2c8996e7b80cf11028ad8c43876c747e0880"
2025-11-18 17:32.01: Using OBuilder spec:
((from ocaml/opam:centos-10-ocaml-4.14@sha256:5d531be08818b220b8f4f43e2a8b8afee7ccd6bd899b4b33146dc7953241ae61)
 (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 yocaml_syndication.2.7.0 2.7.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall yocaml_syndication.2.7.0;\
             \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 \"$pkg\" != 'yocaml_syndication.2.7.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-11-18 17:32.01: Waiting for resource in pool OCluster
2025-11-18 17:45.00: Waiting for worker…
2025-11-18 17:46.48: Got resource from pool OCluster
Building on clete
All commits already cached
HEAD is now at 5b6623e1a6 Merge pull request #28905 from lindig/expr
Updating 5b6623e1a6..d4ca2c8996
Fast-forward
 packages/yocaml/yocaml.2.7.0/opam                  | 50 ++++++++++++++++++++++
 packages/yocaml_cmarkit/yocaml_cmarkit.2.7.0/opam  | 42 ++++++++++++++++++
 packages/yocaml_eio/yocaml_eio.2.7.0/opam          | 44 +++++++++++++++++++
 packages/yocaml_git/yocaml_git.2.7.0/opam          | 49 +++++++++++++++++++++
 packages/yocaml_jingoo/yocaml_jingoo.2.7.0/opam    | 41 ++++++++++++++++++
 packages/yocaml_liquid/yocaml_liquid.2.7.0/opam    | 41 ++++++++++++++++++
 .../yocaml_markdown/yocaml_markdown.2.7.0/opam     | 44 +++++++++++++++++++
 .../yocaml_mustache/yocaml_mustache.2.7.0/opam     | 41 ++++++++++++++++++
 packages/yocaml_omd/yocaml_omd.2.7.0/opam          | 42 ++++++++++++++++++
 packages/yocaml_otoml/yocaml_otoml.2.7.0/opam      | 41 ++++++++++++++++++
 packages/yocaml_runtime/yocaml_runtime.2.7.0/opam  | 45 +++++++++++++++++++
 .../yocaml_syndication.2.7.0/opam                  | 44 +++++++++++++++++++
 packages/yocaml_unix/yocaml_unix.2.7.0/opam        | 42 ++++++++++++++++++
 packages/yocaml_yaml/yocaml_yaml.2.7.0/opam        | 41 ++++++++++++++++++
 14 files changed, 607 insertions(+)
 create mode 100644 packages/yocaml/yocaml.2.7.0/opam
 create mode 100644 packages/yocaml_cmarkit/yocaml_cmarkit.2.7.0/opam
 create mode 100644 packages/yocaml_eio/yocaml_eio.2.7.0/opam
 create mode 100644 packages/yocaml_git/yocaml_git.2.7.0/opam
 create mode 100644 packages/yocaml_jingoo/yocaml_jingoo.2.7.0/opam
 create mode 100644 packages/yocaml_liquid/yocaml_liquid.2.7.0/opam
 create mode 100644 packages/yocaml_markdown/yocaml_markdown.2.7.0/opam
 create mode 100644 packages/yocaml_mustache/yocaml_mustache.2.7.0/opam
 create mode 100644 packages/yocaml_omd/yocaml_omd.2.7.0/opam
 create mode 100644 packages/yocaml_otoml/yocaml_otoml.2.7.0/opam
 create mode 100644 packages/yocaml_runtime/yocaml_runtime.2.7.0/opam
 create mode 100644 packages/yocaml_syndication/yocaml_syndication.2.7.0/opam
 create mode 100644 packages/yocaml_unix/yocaml_unix.2.7.0/opam
 create mode 100644 packages/yocaml_yaml/yocaml_yaml.2.7.0/opam

(from ocaml/opam:centos-10-ocaml-4.14@sha256:5d531be08818b220b8f4f43e2a8b8afee7ccd6bd899b4b33146dc7953241ae61)
2025-11-18 17:47.30 ---> saved as "06e93e5ebdb7e4eaa5afcc7e15fa75c75975ecaad6823b8caee1b45b25c6f0f2"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-11-18 17:47.31 ---> saved as "b876d43cfc609eda76bab2d516dccdbfe80e5f0012edf94bbc9276b1173d205a"

/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
2025-11-18 17:47.55 ---> saved as "0b508fc5a9acc012d40a8144df7343a9d4ffcc4f7c17bf390735fe901d1547e4"

/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~beta1
# 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                 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
2025-11-18 17:47.56 ---> saved as "8b23c051038837c71d53c18b1f3b3442f5bc19a4d78382ac2265e5c6b2caf346"

/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/"))
2025-11-18 17:48.06 ---> saved as "99fc643c4ff22cf2ab9275b138fde5ced16b486376dd9d2125290409703c3dba"

/home/opam: (copy (src .) (dst opam-repository/))
2025-11-18 17:48.21 ---> saved as "758ae0f4a411867bc34e3ef8851f55d08ef5b0c40be07a7f95ddb8587f70e294"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-11-18 17:48.40 ---> saved as "96873ea3e3730ad34ecc33f3497aff483837a08e1b2f76c6b98ff520f29c5617"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 10 - BaseOS                       103 kB/s |  14 kB     00:00    
- CentOS Stream 10 - BaseOS                        11 MB/s | 6.8 MB     00:00    
- CentOS Stream 10 - AppStream                    144 kB/s |  14 kB     00:00    
- CentOS Stream 10 - AppStream                    7.9 MB/s | 3.4 MB     00:00    
- CentOS Stream 10 - CRB                          139 kB/s |  13 kB     00:00    
- CentOS Stream 10 - CRB                          3.6 MB/s | 763 kB     00:00    
- CentOS Stream 10 - Extras packages              171 kB/s |  16 kB     00:00    
- Metadata cache created.
2025-11-18 17:48.46 ---> saved as "9c7fafc8d1a54b050e27de01b4398e8b2613c506d8a8ce71ad9e6273841bcd6b"

/home/opam: (run (shell "opam pin add -k version -yn yocaml_syndication.2.7.0 2.7.0"))
yocaml_syndication is now pinned to version 2.7.0
2025-11-18 17:48.47 ---> saved as "7b565c0daa405a63685d178ae69af301b5096151ef6428017f067f16b45094f0"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall yocaml_syndication.2.7.0;\
                        \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 \"$pkg\" != 'yocaml_syndication.2.7.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
yocaml_syndication.2.7.0 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - yocaml_syndication >= 2.7.0 -> ocaml >= 5.1.1 -> ocaml-variants < 5.5.1~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - yocaml_syndication >= 2.7.0 -> ocaml >= 5.1.1 -> ocaml-variants < 5.1.2~ -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - yocaml_syndication >= 2.7.0 -> ocaml >= 5.1.1 -> ocaml-variants < 5.2.1~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall yocaml_syndication.2.7.0;
        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 "$pkg" != 'yocaml_syndication.2.7.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-11-18 17:49.05: Job failed: Failed: Build failed
2025-11-18 17:49.05: Log analysis:
2025-11-18 17:49.05: >>> 
No solution found, exiting
 (score = 100)
2025-11-18 17:49.05: [SKIP] Package not available