(not at the head of any monitored branch or PR)
2026-06-12 13:53.20: New job: build async_websocket.v0.13.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/30041/head (fc54a99a4794766e0c2fd870be0b573e39e12eb2)
                              on debian-13-ocaml-5.4-no-flat-float-array/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/30041/head" && git reset --hard fc54a99a
git fetch origin master
git merge --no-edit 41657ef82daca3cc2f3c76fd0c9978b7950071ce
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:e96010174c98855f2bc134bed214be65dcf8b2d20500b875b4cc6f1cc19f73b4
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn async_websocket.v0.13.0 v0.13.0
RUN opam reinstall async_websocket.v0.13.0; \
    res=$?; \
    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 "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'async_websocket.v0.13.0' && partial_fails="$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 .

2026-06-12 13:53.20: Using cache hint "ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:e96010174c98855f2bc134bed214be65dcf8b2d20500b875b4cc6f1cc19f73b4-async_websocket.v0.13.0-fc54a99a4794766e0c2fd870be0b573e39e12eb2"
2026-06-12 13:53.20: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:e96010174c98855f2bc134bed214be65dcf8b2d20500b875b4cc6f1cc19f73b4)
 (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 async_websocket.v0.13.0 v0.13.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall async_websocket.v0.13.0;\
             \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 \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'async_websocket.v0.13.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-06-12 13:53.20: Waiting for resource in pool OCluster
2026-06-12 19:05.50: Waiting for worker…
2026-06-12 19:09.03: Got resource from pool OCluster
Building on toxis.caelum.ci.dev
All commits already cached
Updating files:  77% (13941/18072)
Updating files:  78% (14097/18072)
Updating files:  79% (14277/18072)
Updating files:  80% (14458/18072)
Updating files:  81% (14639/18072)
Updating files:  82% (14820/18072)
Updating files:  83% (15000/18072)
Updating files:  84% (15181/18072)
Updating files:  85% (15362/18072)
Updating files:  86% (15542/18072)
Updating files:  87% (15723/18072)
Updating files:  88% (15904/18072)
Updating files:  89% (16085/18072)
Updating files:  90% (16265/18072)
Updating files:  91% (16446/18072)
Updating files:  92% (16627/18072)
Updating files:  93% (16807/18072)
Updating files:  94% (16988/18072)
Updating files:  95% (17169/18072)
Updating files:  96% (17350/18072)
Updating files:  97% (17530/18072)
Updating files:  98% (17711/18072)
Updating files:  99% (17892/18072)
Updating files: 100% (18072/18072)
Updating files: 100% (18072/18072), done.
HEAD is now at 41657ef82d Merge pull request #30025 from dinosaure/release-mcrunch-v0.0.3
Merge made by the 'ort' strategy.
 packages/async_websocket/async_websocket.v0.13.0/opam | 4 ++++
 1 file changed, 4 insertions(+)

(from ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:e96010174c98855f2bc134bed214be65dcf8b2d20500b875b4cc6f1cc19f73b4)
2026-06-12 19:09.11 ---> using "bd27699ed4bdef9cf65a86d28c45a68d36d289d5305f8152a59f8c5b446c4228" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-06-12 19:09.11 ---> using "21ecc761a8f01369da893830f4228c97d8fb6f2f1c767de72cff3b1efcb6507b" 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 2.1 to version 2.2, which can't be reverted.
You may want to back it up before going further.

[NOTE] The 'jobs' option was reset, its value was 1 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=1 --global
Continue? [Y/n] y
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes from git+file:///home/opam/opam-repository
2026-06-12 19:09.11 ---> using "d6d050b422c2b4287905ce5bd3eca07a684f25c6090f66c9f026429929b3934c" 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         2.5.1
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=13
# 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-variants" {= "5.4.1+options"}
  "ocaml-options-only-no-flat-float-array"
]
# compiler-packages    ocaml-compiler.5.4.1, ocaml-option-no-flat-float-array.1, ocaml-options-only-no-flat-float-array.1, ocaml-variants.5.4.1+options
# 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       5.4.1+options+no-flat-float-array
2026-06-12 19:09.11 ---> using "8ec965c36a0c4e42607de29cf7045dc304b301c94a1bd4978f5f88e95e0bcd9a" 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/"))
2026-06-12 19:09.11 ---> using "eb0b41498dbed806b1bf4ce2a4d742e2c762b8eae066481e02f15465699af854" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-06-12 19:09.22 ---> saved as "2e6c9a41fbefbce364af936da00091d59f4aa32644b3501171f92432671d95f8"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-06-12 19:09.37 ---> saved as "8238740260fab22355907429bfb496c04e0ff1aea8d8840d3fdddf992f7dbe01"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian trixie InRelease [140 kB]
- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]
- Get:4 http://deb.debian.org/debian trixie/main amd64 Packages [9671 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [216 kB]
- Fetched 10.1 MB in 2s (5940 kB/s)
- Reading package lists...
- 
2026-06-12 19:09.40 ---> saved as "a469376b8cf0e4421f9e4bad213fc50f4b65edd3e7156373aa745b43442df210"

/home/opam: (run (shell "opam pin add -k version -yn async_websocket.v0.13.0 v0.13.0"))
async_websocket is now pinned to version v0.13.0
2026-06-12 19:09.41 ---> saved as "3be4de3b5e03cf35622b2aae6f7fb4e11effc67df63a61fe80ad6d2cbef242f7"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall async_websocket.v0.13.0;\
                        \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 \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'async_websocket.v0.13.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
async_websocket.v0.13.0 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-variants = 5.4.1+options
    - async_websocket < v0.13.1 -> core_kernel < v0.14 -> ocaml < 4.12.0 -> ocaml-base-compiler (<= 4.11.1 | = 4.11.2)
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - async_websocket < v0.13.1 -> core_kernel < v0.14 -> ocaml < 4.12.0 -> ocaml-base-compiler (< 4.11.0 | = 4.11.3) | ocaml-system (<= 3.07+1 | = 3.07+2 | >= 3.08.0) | ocaml-variants < 4.11.4~
    no matching version
    unmet availability conditions, e.g. 'sys-ocaml-version = "5.4.1" & (os != "win32" | sys-ocaml-libc = "msvc")'
    not available because the package is pinned to version 5.4.1+options

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall async_websocket.v0.13.0;
        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 "\"debian-13\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'async_websocket.v0.13.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-06-12 19:10.06: Job failed: Failed: Build failed
2026-06-12 19:10.06: Log analysis:
2026-06-12 19:10.06: >>> 
No solution found, exiting
 (score = 100)
2026-06-12 19:10.06: [SKIP] Package not available