Build:
  1. 0
2026-02-26 17:31.27: New job: build matrix.0.1.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29312/head (8c083980be49cd4fc405e80bab0aa50d6cebdaac)
                              on centos-10-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29312/head" && git reset --hard 8c083980
git fetch origin master
git merge --no-edit 5119fbb0776fa3cd71b09f40a51e40f783c539bf
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-10-ocaml-4.14@sha256:2c6e3c80ca6d277150b8a95be9d238b16223027db5c6d065aafbd00b5d6c13de
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn matrix.0.1.0 0.1.0
RUN opam reinstall matrix.0.1.0; \
    res=$?; \
    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 "$pkg" != 'matrix.0.1.0' && partial_fails="$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 .

2026-02-26 17:31.27: Using cache hint "ocaml/opam:centos-10-ocaml-4.14@sha256:2c6e3c80ca6d277150b8a95be9d238b16223027db5c6d065aafbd00b5d6c13de-matrix.0.1.0-8c083980be49cd4fc405e80bab0aa50d6cebdaac"
2026-02-26 17:31.27: Using OBuilder spec:
((from ocaml/opam:centos-10-ocaml-4.14@sha256:2c6e3c80ca6d277150b8a95be9d238b16223027db5c6d065aafbd00b5d6c13de)
 (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 matrix.0.1.0 0.1.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall matrix.0.1.0;\
             \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 \"$pkg\" != 'matrix.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-02-26 17:31.27: Waiting for resource in pool OCluster
2026-02-27 02:12.37: Waiting for worker…
2026-02-27 02:14.23: Got resource from pool OCluster
Building on doris.caelum.ci.dev
All commits already cached
HEAD is now at 5119fbb077 Merge pull request #29462 from Octachron/OCaml_5.5.0_alpha1
Updating 5119fbb077..8c083980be
Fast-forward
 packages/matrix-eio/matrix-eio.0.1.0/opam   | 42 ++++++++++++++++++++++++++
 packages/matrix/matrix.0.1.0/opam           | 42 ++++++++++++++++++++++++++
 packages/mosaic/mosaic.0.1.0/opam           | 46 +++++++++++++++++++++++++++++
 packages/toffee/toffee.0.1.0/opam           | 42 ++++++++++++++++++++++++++
 packages/tree-sitter/tree-sitter.0.1.0/opam | 41 +++++++++++++++++++++++++
 5 files changed, 213 insertions(+)
 create mode 100644 packages/matrix-eio/matrix-eio.0.1.0/opam
 create mode 100644 packages/matrix/matrix.0.1.0/opam
 create mode 100644 packages/mosaic/mosaic.0.1.0/opam
 create mode 100644 packages/toffee/toffee.0.1.0/opam
 create mode 100644 packages/tree-sitter/tree-sitter.0.1.0/opam

(from ocaml/opam:centos-10-ocaml-4.14@sha256:2c6e3c80ca6d277150b8a95be9d238b16223027db5c6d065aafbd00b5d6c13de)
Unable to find image 'ocaml/opam:centos-10-ocaml-4.14@sha256:2c6e3c80ca6d277150b8a95be9d238b16223027db5c6d065aafbd00b5d6c13de' locally
docker.io/ocaml/opam@sha256:2c6e3c80ca6d277150b8a95be9d238b16223027db5c6d065aafbd00b5d6c13de: Pulling from ocaml/opam
d0b9d37f1e1e: Pulling fs layer
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Digest: sha256:2c6e3c80ca6d277150b8a95be9d238b16223027db5c6d065aafbd00b5d6c13de
Status: Downloaded newer image for ocaml/opam@sha256:2c6e3c80ca6d277150b8a95be9d238b16223027db5c6d065aafbd00b5d6c13de
2026-02-27 02:17.28 ---> saved as "6fda87f8893e46d01b54209193670411955bd1789e0593d6374f5948aa84e59e"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-02-27 02:17.28 ---> saved as "60785f715b325ea984b5b228f830fd564b2c1c8d3c561b0d2f18dcff2a25779b"

/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
2026-02-27 02:17.50 ---> saved as "24fe832f9bf416bbdf203dbd3a8af441b4d5b89ad3db38e2c41cdf85dfba9800"

/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=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       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
2026-02-27 02:17.50 ---> saved as "1e9cb3f61bdecbea6150a4dee0068590e06711aa1cbb72c0fca306df1c39a328"

/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/"))
2026-02-27 02:18.00 ---> saved as "d1d9836f7157136a428057cab9e4e85ef0b0c2761bcd19f37428e2d74d0d5dbf"

/home/opam: (copy (src .) (dst opam-repository/))
2026-02-27 02:18.12 ---> saved as "c906ca43c1028944b6ad834a8aca957f9b5110ec43c967e8b602a1272f880ebf"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-02-27 02:18.31 ---> saved as "497f3b200d38f42fce2deda4efd583b360237b773a9a38776bdf7713f6eee34a"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 10 - BaseOS                        95 kB/s |  15 kB     00:00    
- CentOS Stream 10 - BaseOS                       7.4 MB/s | 6.9 MB     00:00    
- CentOS Stream 10 - AppStream                    125 kB/s |  15 kB     00:00    
- CentOS Stream 10 - AppStream                    4.9 MB/s | 3.6 MB     00:00    
- CentOS Stream 10 - CRB                          121 kB/s |  15 kB     00:00    
- CentOS Stream 10 - CRB                          3.3 MB/s | 807 kB     00:00    
- CentOS Stream 10 - Extras packages               54 kB/s |  16 kB     00:00    
- Metadata cache created.
2026-02-27 02:18.37 ---> saved as "314c0f4fa1e6f624935db56dcf662be606153fc79a7de28b050ef68d99795306"

/home/opam: (run (shell "opam pin add -k version -yn matrix.0.1.0 0.1.0"))
matrix is now pinned to version 0.1.0
2026-02-27 02:18.37 ---> saved as "1a13c4a898ea8141953128f398a3118cdaff0ee65ef3cf2f7be27cf5060f4a09"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall matrix.0.1.0;\
                        \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 \"$pkg\" != 'matrix.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
matrix.0.1.0 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - matrix -> ocaml >= 5.4 -> ocaml-variants < 5.6.1~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - matrix -> ocaml >= 5.4 -> ocaml-variants < 5.4.1~ -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - matrix -> ocaml >= 5.4 -> ocaml-variants < 5.4.1~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall matrix.0.1.0;
        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 "$pkg" != 'matrix.0.1.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-02-27 02:19.46: Job failed: Failed: Build failed
2026-02-27 02:19.46: Log analysis:
2026-02-27 02:19.46: >>> 
No solution found, exiting
 (score = 100)
2026-02-27 02:19.46: [SKIP] Package not available