Build:
  1. 0
2025-12-08 16:16.48: New job: test melange.6.0.1-52, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29001/head (874518b80fe25606a3e33aa700981f720b90c02f)
                              on centos-9-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29001/head" && git reset --hard 874518b8
git fetch origin master
git merge --no-edit 95f7875db7c621d309c559d9c2ba6781e43a8bb9
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-9-ocaml-5.4@sha256:5948224f8f1b327f9d50c1e7b416bb2beeb6dbbe06f2b53b9f1a50b2dfef2c28
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn melange.6.0.1-52 6.0.1-52
RUN opam reinstall melange.6.0.1-52; \
    res=$?; \
    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 "$pkg" != 'melange.6.0.1-52' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test melange.6.0.1-52) || true
RUN opam reinstall --with-test --verbose melange.6.0.1-52; \
    res=$?; \
    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 "$pkg" != 'melange.6.0.1-52' && partial_fails="$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 .

2025-12-08 16:16.48: Using cache hint "ocaml/opam:centos-9-ocaml-5.4@sha256:5948224f8f1b327f9d50c1e7b416bb2beeb6dbbe06f2b53b9f1a50b2dfef2c28-melange.6.0.1-52-874518b80fe25606a3e33aa700981f720b90c02f"
2025-12-08 16:16.48: Using OBuilder spec:
((from ocaml/opam:centos-9-ocaml-5.4@sha256:5948224f8f1b327f9d50c1e7b416bb2beeb6dbbe06f2b53b9f1a50b2dfef2c28)
 (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 melange.6.0.1-52 6.0.1-52"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall melange.6.0.1-52;\
             \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 \"$pkg\" != 'melange.6.0.1-52' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test melange.6.0.1-52) || true"))
 (run (shell  "opam reinstall --with-test --verbose melange.6.0.1-52;\
             \n        res=$?;\
             \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 \"$pkg\" != 'melange.6.0.1-52' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-12-08 16:16.48: Waiting for resource in pool OCluster
2025-12-08 16:33.17: Waiting for worker…
2025-12-08 16:37.48: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
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Updating files: 100% (18989/18989), done.
HEAD is now at 95f7875db7 Merge pull request #29036 from MisterDA/windows-ci
Merge made by the 'ort' strategy.
 packages/melange-webapi/melange-webapi.0.21.0/opam |  2 +-
 packages/melange/melange.6.0.1-414/opam            | 42 ++++++++++++++++++++++
 packages/melange/melange.6.0.1-51/opam             | 42 ++++++++++++++++++++++
 packages/melange/melange.6.0.1-52/opam             | 42 ++++++++++++++++++++++
 packages/melange/melange.6.0.1-53/opam             | 42 ++++++++++++++++++++++
 packages/melange/melange.6.0.1-54/opam             | 42 ++++++++++++++++++++++
 .../reason-react-ppx/reason-react-ppx.0.13.0/opam  |  2 +-
 .../server-reason-react.0.2.0/opam                 |  2 +-
 .../server-reason-react.0.3.0/opam                 |  2 +-
 .../server-reason-react.0.3.1/opam                 |  4 +--
 10 files changed, 216 insertions(+), 6 deletions(-)
 create mode 100644 packages/melange/melange.6.0.1-414/opam
 create mode 100644 packages/melange/melange.6.0.1-51/opam
 create mode 100644 packages/melange/melange.6.0.1-52/opam
 create mode 100644 packages/melange/melange.6.0.1-53/opam
 create mode 100644 packages/melange/melange.6.0.1-54/opam

(from ocaml/opam:centos-9-ocaml-5.4@sha256:5948224f8f1b327f9d50c1e7b416bb2beeb6dbbe06f2b53b9f1a50b2dfef2c28)
2025-12-08 16:44.43 ---> using "42fb1f2076253dcd574b9a6ebdc0b2874de146ceef944a4df593f94daff4319a" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-12-08 16:44.43 ---> using "c0d44514d4dc98fe974b9a6087d67e793898cd2e8729f3b0b8993e178b557e00" from cache

/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
2025-12-08 16:44.43 ---> using "ee247a454cce61756a31bfca76a597343ef86e370973c1959b6608b812eaf2fb" from cache

/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
2025-12-08 16:44.43 ---> using "c2a9a15943ee59bcb44be949a5829013e35a3c966fc4ba9079a71ba3aa3d86f9" from cache

/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/"))
2025-12-08 16:44.43 ---> using "39c208c4fe0a889ce873fdfd088550e096656d519bb2239141811e4a8ca11a39" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-08 16:44.44 ---> using "d012aeb9056c1ca6acdc63583d44252374a2c97d11ffde24f0fce597951f0929" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-12-08 16:44.44 ---> using "eec4ccc82dc77e7e4e4f45e633a5112aaaee3f18b8c9a9aab25ae4b5423873f0" from cache

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 9 - BaseOS                        104 kB/s |  15 kB     00:00    
- CentOS Stream 9 - BaseOS                        518 kB/s | 8.8 MB     00:17    
- CentOS Stream 9 - AppStream                     105 kB/s |  15 kB     00:00    
- CentOS Stream 9 - AppStream                     1.0 MB/s |  26 MB     00:24    
- CentOS Stream 9 - CRB                           103 kB/s |  14 kB     00:00    
- CentOS Stream 9 - CRB                           685 kB/s | 7.4 MB     00:10    
- CentOS Stream 9 - Extras packages               129 kB/s |  17 kB     00:00    
- Metadata cache created.
2025-12-08 16:45.30 ---> saved as "216f8a26a408721ce80a68dbefc39cb1535bc3cc1177136949279b101d03af55"

/home/opam: (run (shell "opam pin add -k version -yn melange.6.0.1-52 6.0.1-52"))
melange is now pinned to version 6.0.1-52
2025-12-08 16:45.31 ---> saved as "27c478054b86f4bdcb7c62ef3b750bafa53d6f1025f52b9e2704a37766ade0aa"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall melange.6.0.1-52;\
                        \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 \"$pkg\" != 'melange.6.0.1-52' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
melange.6.0.1-52 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler >= 5.4.0
    - melange = 6.0.1-52 -> ocaml < 5.3 -> dkml-base-compiler
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler >= 5.4.0
    - melange = 6.0.1-52 -> ocaml < 5.3 -> ocaml-variants (< 4.05.2~ | >= 4.06.0)
  * Missing dependency:
    - melange = 6.0.1-52 -> ocaml < 5.3 -> ocaml-base-compiler (<= 3.07+1 | = 3.07+2 | = 3.08.0 | = 3.08.1 | = 3.08.2 | = 3.08.3 | = 3.08.4 | = 3.09.0) | ocaml-system (<= 3.07+1 | = 3.07+2 | >= 3.08.0) | ocaml-variants < 3.09.1~
    not available because the package is pinned to version 5.4.0
    unmet availability conditions, e.g. 'sys-ocaml-version = "5.4.0" & (os != "win32" | sys-ocaml-libc = "msvc")'
    no matching version
  * Missing dependency:
    - melange = 6.0.1-52 -> ocaml < 5.3 -> ocaml-variants >= 4.06.0 -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - melange = 6.0.1-52 -> ocaml < 5.3 -> ocaml-variants >= 4.06.0 -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall melange.6.0.1-52;
        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 "$pkg" != 'melange.6.0.1-52' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-12-08 16:45.56: Job failed: Failed: Build failed
2025-12-08 16:45.56: Log analysis:
2025-12-08 16:45.56: >>> 
No solution found, exiting
 (score = 100)
2025-12-08 16:45.56: [SKIP] Package not available