Build:
  1. 0
2026-02-26 17:31.27: New job: test matrix-eio.0.1.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29312/head (8c083980be49cd4fc405e80bab0aa50d6cebdaac)
                              on centos-9-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29312/head" && git reset --hard 8c083980
git fetch origin master
git merge --no-edit 5119fbb0776fa3cd71b09f40a51e40f783c539bf
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-9-ocaml-4.14@sha256:8cf91e91a31650c4c8964ffbd762f09f8001a9debea91d51a5ef9ec4b7079e61
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn matrix-eio.0.1.0 0.1.0
RUN opam reinstall matrix-eio.0.1.0; \
    res=$?; \
    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-9\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'matrix-eio.0.1.0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test matrix-eio.0.1.0) || true
RUN opam reinstall --with-test --verbose matrix-eio.0.1.0; \
    res=$?; \
    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-9\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'matrix-eio.0.1.0' && partial_fails="$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-9-ocaml-4.14@sha256:8cf91e91a31650c4c8964ffbd762f09f8001a9debea91d51a5ef9ec4b7079e61-matrix-eio.0.1.0-8c083980be49cd4fc405e80bab0aa50d6cebdaac"
2026-02-26 17:31.27: Using OBuilder spec:
((from ocaml/opam:centos-9-ocaml-4.14@sha256:8cf91e91a31650c4c8964ffbd762f09f8001a9debea91d51a5ef9ec4b7079e61)
 (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-eio.0.1.0 0.1.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall matrix-eio.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-9\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'matrix-eio.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test matrix-eio.0.1.0) || true"))
 (run (shell  "opam reinstall --with-test --verbose matrix-eio.0.1.0;\
             \n        res=$?;\
             \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-9\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'matrix-eio.0.1.0' && partial_fails=\"$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 02:14.37: 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-9-ocaml-4.14@sha256:8cf91e91a31650c4c8964ffbd762f09f8001a9debea91d51a5ef9ec4b7079e61)
Unable to find image 'ocaml/opam:centos-9-ocaml-4.14@sha256:8cf91e91a31650c4c8964ffbd762f09f8001a9debea91d51a5ef9ec4b7079e61' locally
docker.io/ocaml/opam@sha256:8cf91e91a31650c4c8964ffbd762f09f8001a9debea91d51a5ef9ec4b7079e61: Pulling from ocaml/opam
55e3b0f61370: Already exists
12a9ad09ad0b: Already exists
c6dcb611bb0d: Already exists
e9d04e808392: Already exists
e568c6ed001b: Already exists
a3ad6a03a86f: Already exists
55bdb2507800: Already exists
056e0fa9d7fe: Already exists
02cc36a2ccdd: Already exists
51b1639760e7: Already exists
5055ae0204da: Already exists
9127e08d0fa9: Already exists
ebf10482819f: Already exists
3478f754a380: Already exists
d2295af6d9c9: Already exists
e64979636222: Already exists
14b4a8be42ec: Already exists
7b031bf21aa8: Already exists
7b031bf21aa8: Already exists
cfa8f5a68da6: Already exists
0cf240c3a9ad: Already exists
2cb7f127a4d4: Already exists
97558565a111: Already exists
4f4fb700ef54: Already exists
0a4f8d574e9d: Already exists
def356f1b937: Already exists
e6bb57de3737: Already exists
e751b33365d4: Already exists
10d47c71b367: Already exists
848c53ec0c08: Already exists
99700e7de304: Already exists
0dd597b12b5f: Already exists
d79885d80fc7: Already exists
7572bb5286a8: Already exists
afd31d27b128: Already exists
79e444962f95: Already exists
b58223d25a6a: Already exists
d238f36eb792: Already exists
6d2c2cd0f336: Already exists
7cacbea9044a: Already exists
17b1468f5133: Already exists
4811617af50c: Already exists
55f8f6f7fa14: Pulling fs layer
bb1c245e68c1: Pulling fs layer
eb367fd614a7: Pulling fs layer
8f116e89c095: Pulling fs layer
55f8f6f7fa14: Waiting
bb1c245e68c1: Waiting
eb367fd614a7: Waiting
8f116e89c095: Waiting
55f8f6f7fa14: Verifying Checksum
55f8f6f7fa14: Download complete
bb1c245e68c1: Download complete
eb367fd614a7: Verifying Checksum
eb367fd614a7: Download complete
8f116e89c095: Download complete
55f8f6f7fa14: Pull complete
bb1c245e68c1: Pull complete
eb367fd614a7: Pull complete
8f116e89c095: Pull complete
Digest: sha256:8cf91e91a31650c4c8964ffbd762f09f8001a9debea91d51a5ef9ec4b7079e61
Status: Downloaded newer image for ocaml/opam@sha256:8cf91e91a31650c4c8964ffbd762f09f8001a9debea91d51a5ef9ec4b7079e61
2026-02-27 02:16.19 ---> saved as "00ca9988846b77878301e6d5b0c598b11a3e950194324808f549e1f93d0b0ebc"

/: (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 02:16.19 ---> saved as "a8ced5ec3f1285b121cd476b8620e592399d109c94104b7e0aa75b0d7826c3e5"

/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
[NOTE] The 'jobs' option was reset, its value was 71 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=71 --global
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-02-27 02:16.55 ---> saved as "97bb4a95279c99b35bf903d151a3088aef7894155d75200375d243f84a0ac267"

/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                 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 02:16.56 ---> saved as "5d0b940fa76f01eb6680b39dffdc386f526c3bb1e007a4546328bcd9fa8739f3"

/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 02:17.19 ---> saved as "fccb809a15f8ad03b1ff98476ecef1550cd0c1502b58d8fe2ea21907e7efef01"

/home/opam: (copy (src .) (dst opam-repository/))
2026-02-27 02:18.00 ---> saved as "9c8fcdf0a36c17456d0dffe846c02165a13fbb5e714f5edce09cef28b563738a"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-02-27 02:18.20 ---> saved as "45c98646ebac661cfd37e45712e04b627e4599861ae2345501438d2d48fd2c70"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 9 - BaseOS                        111 kB/s |  14 kB     00:00    
- CentOS Stream 9 - BaseOS                         14 MB/s | 8.9 MB     00:00    
- CentOS Stream 9 - AppStream                     116 kB/s |  15 kB     00:00    
- CentOS Stream 9 - AppStream                      13 MB/s |  27 MB     00:02    
- CentOS Stream 9 - CRB                            49 kB/s |  14 kB     00:00    
- CentOS Stream 9 - CRB                           3.4 MB/s | 8.0 MB     00:02    
- CentOS Stream 9 - Extras packages               130 kB/s |  16 kB     00:00    
- Metadata cache created.
2026-02-27 02:18.37 ---> saved as "14e13cae4577de889066be489959aefb23f05658788c768a0beca29b0429cf6d"

/home/opam: (run (shell "opam pin add -k version -yn matrix-eio.0.1.0 0.1.0"))
matrix-eio is now pinned to version 0.1.0
2026-02-27 02:18.37 ---> saved as "04e4cedacaf87d78a85c45ba80c22055e58c6191350287a78aa2f99977b1b9f0"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall matrix-eio.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-9\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'matrix-eio.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
matrix-eio.0.1.0 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - matrix-eio -> ocaml >= 5.4 -> ocaml-variants >= 5.4.0~
    You can temporarily relax the switch invariant with `--update-invariant'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall matrix-eio.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-9\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'matrix-eio.0.1.0' && partial_fails="$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 02:19.44: Job failed: Failed: Build failed
2026-02-27 02:19.44: Log analysis:
2026-02-27 02:19.44: >>> 
No solution found, exiting
 (score = 100)
2026-02-27 02:19.44: [SKIP] Package not available