(not at the head of any monitored branch or PR)
2025-11-30 20:45.57: New job: build melange.6.0.1-53, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29001/head (f552a18f416e36738eee28c6bf79045fd1a926dd)
                              on centos-9-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29001/head" && git reset --hard f552a18f
git fetch origin master
git merge --no-edit 1808b67a60cee484a3c5ff1a64046c0e5f0406a5
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-9-ocaml-4.14@sha256:654e1bf5553b693f6fb59c9054643d526ff47a133c135d6257e29ac728545e1a
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn melange.6.0.1-53 6.0.1-53
RUN opam reinstall melange.6.0.1-53; \
    res=$?; \
    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 "$pkg" != 'melange.6.0.1-53' && partial_fails="$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 .

2025-11-30 20:45.57: Using cache hint "ocaml/opam:centos-9-ocaml-4.14@sha256:654e1bf5553b693f6fb59c9054643d526ff47a133c135d6257e29ac728545e1a-melange.6.0.1-53-f552a18f416e36738eee28c6bf79045fd1a926dd"
2025-11-30 20:45.57: Using OBuilder spec:
((from ocaml/opam:centos-9-ocaml-4.14@sha256:654e1bf5553b693f6fb59c9054643d526ff47a133c135d6257e29ac728545e1a)
 (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.6.0.1-53 6.0.1-53"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall melange.6.0.1-53;\
             \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 \"$pkg\" != 'melange.6.0.1-53' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-11-30 20:45.57: Waiting for resource in pool OCluster
2025-11-30 20:47.18: Waiting for worker…
2025-11-30 20:49.35: Got resource from pool OCluster
Building on toxis.caelum.ci.dev
All commits already cached
HEAD is now at 1808b67a60 Merge pull request #28997 from dinosaure/release-hxd-v0.3.6
Updating 1808b67a60..f552a18f41
Fast-forward
 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 +++++++++++++++++++++++++++++++++
 5 files changed, 210 insertions(+)
 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-4.14@sha256:654e1bf5553b693f6fb59c9054643d526ff47a133c135d6257e29ac728545e1a)
Unable to find image 'ocaml/opam:centos-9-ocaml-4.14@sha256:654e1bf5553b693f6fb59c9054643d526ff47a133c135d6257e29ac728545e1a' locally
docker.io/ocaml/opam@sha256:654e1bf5553b693f6fb59c9054643d526ff47a133c135d6257e29ac728545e1a: Pulling from ocaml/opam
28851411228a: Pulling fs layer
d370cef3d672: Pulling fs layer
48d15e502fee: Pulling fs layer
ff9cd254be97: Pulling fs layer
96e234b00abe: Pulling fs layer
6e6ac2ccdda5: Pulling fs layer
1dc2164692aa: Pulling fs layer
09038ce5636a: Pulling fs layer
1f36d3d7576f: Pulling fs layer
f3823339a3a5: Pulling fs layer
7188cc384432: Pulling fs layer
d6202385aaeb: Pulling fs layer
78963874183b: Pulling fs layer
fd0ae34173f3: Pulling fs layer
e50db6904ce8: Pulling fs layer
09038ce5636a: Waiting
8372966e7946: Pulling fs layer
c0dee74de042: Pulling fs layer
1f36d3d7576f: Waiting
7b7de09deb26: Pulling fs layer
7e19a441edb7: Pulling fs layer
ff9cd254be97: Waiting
ae8aa7e2b6e0: Pulling fs layer
6e6ac2ccdda5: Waiting
96e234b00abe: Waiting
ba69e9fce6de: Pulling fs layer
4f4fb700ef54: Pulling fs layer
7b7de09deb26: Waiting
8372966e7946: Waiting
f3823339a3a5: Waiting
7e19a441edb7: Waiting
36c0d68113b5: Pulling fs layer
94aadb00cfa4: Pulling fs layer
7188cc384432: Waiting
45c229644f3d: Pulling fs layer
c0dee74de042: Waiting
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fd0ae34173f3: Waiting
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d6202385aaeb: Waiting
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36c0d68113b5: Waiting
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688f6ed18258: Pulling fs layer
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94aadb00cfa4: Waiting
aa390048feb0: Pulling fs layer
a0a5139946b7: Waiting
9678b69c2f53: Waiting
5da45c19895f: Pulling fs layer
c3e4ddfa2bd1: Pulling fs layer
942e9ef57dd4: Waiting
5da45c19895f: Waiting
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328488b541ef: Pulling fs layer
79321414ac07: Waiting
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30c5556c8ae0: Pulling fs layer
ee4084b37387: Pulling fs layer
158ab6e94c0b: Waiting
328488b541ef: Waiting
767a3ac0d347: Pulling fs layer
f32a5c5d3f5e: Pulling fs layer
ee4084b37387: Waiting
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a94763cec5bd: Pulling fs layer
f32a5c5d3f5e: Waiting
860f0c4f1237: Pulling fs layer
a94763cec5bd: Waiting
d370cef3d672: Verifying Checksum
d370cef3d672: Download complete
28851411228a: Verifying Checksum
28851411228a: Download complete
96e234b00abe: Verifying Checksum
96e234b00abe: Download complete
6e6ac2ccdda5: Verifying Checksum
6e6ac2ccdda5: Download complete
28851411228a: Pull complete
d370cef3d672: Pull complete
48d15e502fee: Verifying Checksum
48d15e502fee: Download complete
1dc2164692aa: Verifying Checksum
1dc2164692aa: Download complete
1f36d3d7576f: Verifying Checksum
1f36d3d7576f: Download complete
ff9cd254be97: Verifying Checksum
ff9cd254be97: Download complete
09038ce5636a: Verifying Checksum
09038ce5636a: Download complete
f3823339a3a5: Verifying Checksum
f3823339a3a5: Download complete
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d6202385aaeb: Verifying Checksum
d6202385aaeb: Download complete
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78963874183b: Download complete
e50db6904ce8: Download complete
8372966e7946: Verifying Checksum
8372966e7946: Download complete
48d15e502fee: Pull complete
c0dee74de042: Verifying Checksum
c0dee74de042: Download complete
7b7de09deb26: Verifying Checksum
7b7de09deb26: Download complete
fd0ae34173f3: Verifying Checksum
fd0ae34173f3: Download complete
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ae8aa7e2b6e0: Verifying Checksum
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94aadb00cfa4: Download complete
36c0d68113b5: Download complete
45c229644f3d: Verifying Checksum
45c229644f3d: Download complete
34a3ec108ec7: Verifying Checksum
34a3ec108ec7: Download complete
9678b69c2f53: Verifying Checksum
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ad0b9a014a16: Verifying Checksum
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a0a5139946b7: Download complete
688f6ed18258: Verifying Checksum
688f6ed18258: Download complete
942e9ef57dd4: Verifying Checksum
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30c5556c8ae0: Verifying Checksum
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767a3ac0d347: Verifying Checksum
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f32a5c5d3f5e: Verifying Checksum
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860f0c4f1237: Pull complete
Digest: sha256:654e1bf5553b693f6fb59c9054643d526ff47a133c135d6257e29ac728545e1a
Status: Downloaded newer image for ocaml/opam@sha256:654e1bf5553b693f6fb59c9054643d526ff47a133c135d6257e29ac728545e1a
2025-11-30 20:49.46 ---> using "5a0b839b191faf2fc0b25659dfcb4ad39a41561326d046cf3c8cdf0ceb33b5f5" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-11-30 20:49.46 ---> using "ac3323d0fe67053232adde86f68f168cb84cd3e6296dd9a58830be9c08949118" 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
2025-11-30 20:49.46 ---> using "827081967e26930ff7da9009238425666f96b8a98b84123f2f8655bb467a00a3" 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~rc1
# 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       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
2025-11-30 20:49.46 ---> using "68351081306b2bb4c465dde0f30f0ff557195f06c182d61b8ee1a27f6e25cb3b" 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/"))
2025-11-30 20:49.46 ---> using "63f09e52018791fea649a084649ab9f6e26ad1506ccbae9368708a3b4cd61281" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-11-30 20:50.00 ---> saved as "3a34b79a01cd6c65b06ce2680367fb883e384ed1663cdbd5c8e917e668135db3"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-11-30 20:50.19 ---> saved as "4af049d44a2d926f480d01ec3e5528016fe77a48e3a5e5dba6d95ac68d61e631"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 9 - BaseOS                        106 kB/s |  15 kB     00:00    
- CentOS Stream 9 - BaseOS                         13 MB/s | 8.8 MB     00:00    
- CentOS Stream 9 - AppStream                     114 kB/s |  15 kB     00:00    
- CentOS Stream 9 - AppStream                      12 MB/s |  25 MB     00:02    
- CentOS Stream 9 - CRB                           105 kB/s |  15 kB     00:00    
- CentOS Stream 9 - CRB                           7.8 MB/s | 7.3 MB     00:00    
- CentOS Stream 9 - Extras packages               107 kB/s |  17 kB     00:00    
- Metadata cache created.
2025-11-30 20:50.36 ---> saved as "d111c518a7392c1008137163fcbfabd6734ec9ade4c45b2db386cb9461592b79"

/home/opam: (run (shell "opam pin add -k version -yn melange.6.0.1-53 6.0.1-53"))
melange is now pinned to version 6.0.1-53
2025-11-30 20:50.37 ---> saved as "9dd85520a3114ec477462c66899e64e7197b13e3e2b5de186c6c58ebd53af144"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall melange.6.0.1-53;\
                        \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 \"$pkg\" != 'melange.6.0.1-53' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
melange.6.0.1-53 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.2
    - melange = 6.0.1-53 -> ocaml >= 5.3 -> ocaml-variants < 5.5.1~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - melange = 6.0.1-53 -> ocaml >= 5.3 -> ocaml-variants < 5.3.1~ -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - melange = 6.0.1-53 -> ocaml >= 5.3 -> ocaml-variants < 5.3.1~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall melange.6.0.1-53;
        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 "$pkg" != 'melange.6.0.1-53' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-11-30 20:51.23: Job failed: Failed: Build failed
2025-11-30 20:51.23: Log analysis:
2025-11-30 20:51.23: >>> 
No solution found, exiting
 (score = 100)
2025-11-30 20:51.23: [SKIP] Package not available