(not at the head of any monitored branch or PR)
2025-12-30 15:25.40: New job: build llvm.20-shared, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29110/head (a16fbbbc4ad239dba151649395b1e98d3d337d30)
                              on debian-13-ocaml-5.4/i386

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29110/head" && git reset --hard a16fbbbc
git fetch origin master
git merge --no-edit f2d102f951a5dc2af6db218c6aef53c80186295a
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:0a28f8602b9e30ae63eb758968a0deef61abeb3418c0390364d053aa04bcd730
SHELL [ "/usr/bin/linux32", "/bin/sh", "-c" ]
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn llvm.20-shared 20-shared
RUN opam reinstall llvm.20-shared; \
    res=$?; \
    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 "$pkg" != 'llvm.20-shared' && partial_fails="$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 .

2025-12-30 15:25.40: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:0a28f8602b9e30ae63eb758968a0deef61abeb3418c0390364d053aa04bcd730-llvm.20-shared-a16fbbbc4ad239dba151649395b1e98d3d337d30"
2025-12-30 15:25.40: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:0a28f8602b9e30ae63eb758968a0deef61abeb3418c0390364d053aa04bcd730)
 (shell /usr/bin/linux32 /bin/sh -c)
 (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 llvm.20-shared 20-shared"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall llvm.20-shared;\
             \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 \"$pkg\" != 'llvm.20-shared' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-12-30 15:25.40: Waiting for resource in pool OCluster
2025-12-30 15:32.30: Waiting for worker…
2025-12-30 15:35.17: Got resource from pool OCluster
Building on laodoke.caelum.ci.dev
All commits already cached
Updating files:  94% (18085/19122)
Updating files:  95% (18166/19122)
Updating files:  96% (18358/19122)
Updating files:  97% (18549/19122)
Updating files:  98% (18740/19122)
Updating files:  99% (18931/19122)
Updating files: 100% (19122/19122)
Updating files: 100% (19122/19122), done.
HEAD is now at f2d102f951 Merge pull request #29150 from raphael-proust/llvm-20-21-only-cosmetics
Merge made by the 'ort' strategy.
 packages/conf-llvm-shared/conf-llvm-shared.20/opam | 34 +++++++++++
 packages/conf-llvm-shared/conf-llvm-shared.21/opam | 34 +++++++++++
 packages/conf-llvm-static/conf-llvm-static.20/opam | 34 +++++++++++
 packages/conf-llvm-static/conf-llvm-static.21/opam | 34 +++++++++++
 packages/llvm/llvm.20-shared/opam                  | 67 ++++++++++++++++++++++
 packages/llvm/llvm.20-static/opam                  | 67 ++++++++++++++++++++++
 packages/llvm/llvm.21-shared/opam                  | 67 ++++++++++++++++++++++
 packages/llvm/llvm.21-static/opam                  | 67 ++++++++++++++++++++++
 8 files changed, 404 insertions(+)
 create mode 100644 packages/conf-llvm-shared/conf-llvm-shared.20/opam
 create mode 100644 packages/conf-llvm-shared/conf-llvm-shared.21/opam
 create mode 100644 packages/conf-llvm-static/conf-llvm-static.20/opam
 create mode 100644 packages/conf-llvm-static/conf-llvm-static.21/opam
 create mode 100644 packages/llvm/llvm.20-shared/opam
 create mode 100644 packages/llvm/llvm.20-static/opam
 create mode 100644 packages/llvm/llvm.21-shared/opam
 create mode 100644 packages/llvm/llvm.21-static/opam

(from ocaml/opam:debian-13-ocaml-5.4@sha256:0a28f8602b9e30ae63eb758968a0deef61abeb3418c0390364d053aa04bcd730)
Unable to find image 'ocaml/opam:debian-13-ocaml-5.4@sha256:0a28f8602b9e30ae63eb758968a0deef61abeb3418c0390364d053aa04bcd730' locally
docker.io/ocaml/opam@sha256:0a28f8602b9e30ae63eb758968a0deef61abeb3418c0390364d053aa04bcd730: Pulling from ocaml/opam
a63ab7a4f8b1: Already exists
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Digest: sha256:0a28f8602b9e30ae63eb758968a0deef61abeb3418c0390364d053aa04bcd730
Status: Downloaded newer image for ocaml/opam@sha256:0a28f8602b9e30ae63eb758968a0deef61abeb3418c0390364d053aa04bcd730
2025-12-30 15:35.24 ---> using "2b9e0d1b3d6bb3fe87b1927e5ba92f516531dde0f47c0a49969bbb5680e5bb41" from cache

/: (shell /usr/bin/linux32 /bin/sh -c)

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-12-30 15:35.24 ---> using "9033ce3da8efa4f11ec48de5daa62c87ce1036993b48373db88ee9f63acf167b" 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
2025-12-30 15:35.24 ---> using "eb18c4890353e3ea2a18a1a0331259d9fe04668d0d22df270f577c8cb98b36af" 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_32 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-base-compiler" {>= "5.4.0"}]
# compiler-packages    ocaml-base-compiler.5.4.0, ocaml-compiler.5.4.0, ocaml-option-bytecode-only.1, ocaml-options-vanilla.1
# ocaml:native         false
# ocaml:native-tools   false
# ocaml:native-dynlink false
# 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+bytecode-only
2025-12-30 15:35.24 ---> using "28964eea94bc8561b877075a3a3e131e5af1543c4661d4b23de18555e6180424" 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/"))
2025-12-30 15:35.24 ---> using "0aeb395eb5609f34bad2459fd91a832dad7594ba8850e1c3b4a7adf50a3236b0" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-30 15:35.34 ---> saved as "d7a06162a1df85f65651ad6b9d96c87b318339449efa0ac4b23de05b376f0e56"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-12-30 15:36.12 ---> saved as "961777b7ef459c858c5149197e33224e59f271860d9490be6a4c19ad80a4ad82"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian trixie InRelease
- 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]
- Fetched 90.7 kB in 0s (869 kB/s)
- Reading package lists...
- 
2025-12-30 15:36.14 ---> saved as "0fa6fcaaeffd6e193a478b963146503e8c757e83c0947e976b8647d9d6002252"

/home/opam: (run (shell "opam pin add -k version -yn llvm.20-shared 20-shared"))
llvm is now pinned to version 20-shared
2025-12-30 15:36.15 ---> saved as "69b248281d43e6d132384e566bb99b51d11e1ef887f2361e4569ef5f915a7440"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall llvm.20-shared;\
                        \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 \"$pkg\" != 'llvm.20-shared' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
llvm.20-shared is not installed. Install it? [Y/n] y
  * Missing dependency:
    - llvm = 20-shared -> conf-llvm-shared = 20
    depends on the unavailable system package 'llvm-20-dev'. Use `--no-depexts' to attempt installation anyway, or it is possible that a depext package name in the opam file is incorrect.

No solution found, exiting
"/usr/bin/linux32" "/bin/sh" "-c" "opam reinstall llvm.20-shared;
        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 "$pkg" != 'llvm.20-shared' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-12-30 15:36.48: Job failed: Failed: Build failed
2025-12-30 15:36.48: Log analysis:
2025-12-30 15:36.48: >>> 
No solution found, exiting
 (score = 100)
2025-12-30 15:36.48: [SKIP] Package not available