(for PR #29110)

2025-12-30 15:25.30: New job: build conf-llvm-static.20, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29110/head (a16fbbbc4ad239dba151649395b1e98d3d337d30)
                              on ubuntu-22.04-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29110/head" && git reset --hard a16fbbbc
git fetch origin master
git merge --no-edit f2d102f951a5dc2af6db218c6aef53c80186295a
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-22.04-ocaml-4.14@sha256:f7fb670e55d80edca85afd0f09537114196f2e1cf0d80646624bfa78f34e501b
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn conf-llvm-static.20 20
RUN opam reinstall conf-llvm-static.20; \
    res=$?; \
    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 "\"ubuntu-22.04\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'conf-llvm-static.20' && partial_fails="$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 15:25.30: Using cache hint "ocaml/opam:ubuntu-22.04-ocaml-4.14@sha256:f7fb670e55d80edca85afd0f09537114196f2e1cf0d80646624bfa78f34e501b-conf-llvm-static.20-a16fbbbc4ad239dba151649395b1e98d3d337d30"
2025-12-30 15:25.30: Using OBuilder spec:
((from ocaml/opam:ubuntu-22.04-ocaml-4.14@sha256:f7fb670e55d80edca85afd0f09537114196f2e1cf0d80646624bfa78f34e501b)
 (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 conf-llvm-static.20 20"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall conf-llvm-static.20;\
             \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 \"\\\"ubuntu-22.04\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'conf-llvm-static.20' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-12-30 15:25.30: Waiting for resource in pool OCluster
2025-12-30 15:27.38: Waiting for worker…
2025-12-30 15:32.19: Got resource from pool OCluster
Building on laodoke.caelum.ci.dev
All commits already cached
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:ubuntu-22.04-ocaml-4.14@sha256:f7fb670e55d80edca85afd0f09537114196f2e1cf0d80646624bfa78f34e501b)
Unable to find image 'ocaml/opam:ubuntu-22.04-ocaml-4.14@sha256:f7fb670e55d80edca85afd0f09537114196f2e1cf0d80646624bfa78f34e501b' locally
docker.io/ocaml/opam@sha256:f7fb670e55d80edca85afd0f09537114196f2e1cf0d80646624bfa78f34e501b: Pulling from ocaml/opam
7e49dc6156b0: Already exists
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a2f0d7f6c7a2: Already exists
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da6709a7d994: Pulling fs layer
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6a9f73cee81e: Download complete
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Digest: sha256:f7fb670e55d80edca85afd0f09537114196f2e1cf0d80646624bfa78f34e501b
Status: Downloaded newer image for ocaml/opam@sha256:f7fb670e55d80edca85afd0f09537114196f2e1cf0d80646624bfa78f34e501b
2025-12-30 15:32.28 ---> using "e3241aa53d8aad4718fa2f2ab81b104356db8836803d01e9d8dc6f8cfc7a6d78" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-12-30 15:32.28 ---> using "ab8040d83ea2d8bfa11cf188c72761239882ed37385dd9a31e9b5a1aa76c3f9c" 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 15:32.28 ---> using "62f79aa5b3e1511a43aa4f0407d178b80f3ac2faf061095bd1fd76062db52503" 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=ubuntu os-version=22.04
# 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
2025-12-30 15:32.28 ---> using "f9c0bff4b462d3688cc1a2b1e002331665b90693c671247a87a69c9d521e5743" 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 15:32.28 ---> using "b916956aa156c1d3781fc20187877f1fa5c2201c699f33d397d5631d47a877aa" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-30 15:32.33 ---> saved as "00b07f43377825b3c13f3d289ecfa73b14d97e74b495373b6007c19fe1898be3"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-12-30 15:32.52 ---> saved as "0ff4d325ee4a774249341f7a89cb6b30a39ffa5b009fe47e581cba9d497970ff"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://archive.ubuntu.com/ubuntu jammy InRelease
- Get:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [128 kB]
- Get:3 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [127 kB]
- Get:4 http://security.ubuntu.com/ubuntu jammy-security InRelease [129 kB]
- Fetched 384 kB in 1s (638 kB/s)
- Reading package lists...
- 
2025-12-30 15:32.55 ---> saved as "94de243b295d947eaf8a70e811d0a0c45989cd0b1848f35f7e9d8faca8beb452"

/home/opam: (run (shell "opam pin add -k version -yn conf-llvm-static.20 20"))
conf-llvm-static is now pinned to version 20
2025-12-30 15:32.56 ---> saved as "e431a4a79b7d6e9d21cfabaec26fdfb9065717261bdeceb768128e0f2ce3ed2b"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall conf-llvm-static.20;\
                        \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 \"\\\"ubuntu-22.04\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'conf-llvm-static.20' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
[ERROR] Package conf-llvm-static.20 depends on the unavailable system package 'llvm-20-dev'. You can use `--no-depexts' to attempt installation anyway.
"/usr/bin/env" "bash" "-c" "opam reinstall conf-llvm-static.20;
        res=$?;
        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 "\"ubuntu-22.04\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'conf-llvm-static.20' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 5
2025-12-30 15:33.04: Job failed: Failed: Build failed
2025-12-30 15:33.04: Log analysis:
2025-12-30 15:33.04: >>> 
[ERROR] Package conf-llvm-static.20 depends on the unavailable system package 'llvm-20-dev'. You can use `--no-depexts' to attempt installation anyway.
 (score = 100)
2025-12-30 15:33.04: [SKIP] Package not available