(for PR #29110)

2025-12-30 15:25.26: New job: build conf-llvm-static.20, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29110/head (a16fbbbc4ad239dba151649395b1e98d3d337d30)
                              on debian-11-ocaml-5.4/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29110/head" && git reset --hard a16fbbbc
git fetch origin master
git merge --no-edit f2d102f951a5dc2af6db218c6aef53c80186295a
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-11-ocaml-5.4@sha256:52558d6b3ebee30568a21b3be189ff6fbfccdea588155ec11d8f46267d986767
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn conf-llvm-static.20 20
RUN opam reinstall conf-llvm-static.20; \
    res=$?; \
    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 "\"debian-11\""; 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 15:25.26: Using cache hint "ocaml/opam:debian-11-ocaml-5.4@sha256:52558d6b3ebee30568a21b3be189ff6fbfccdea588155ec11d8f46267d986767-conf-llvm-static.20-a16fbbbc4ad239dba151649395b1e98d3d337d30"
2025-12-30 15:25.26: Using OBuilder spec:
((from ocaml/opam:debian-11-ocaml-5.4@sha256:52558d6b3ebee30568a21b3be189ff6fbfccdea588155ec11d8f46267d986767)
 (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 \"\\\"debian-11\\\"\"; 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 15:25.26: Waiting for resource in pool OCluster
2025-12-30 15:25.26: Waiting for worker…
2025-12-30 15:28.52: Got resource from pool OCluster
Building on clete
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:debian-11-ocaml-5.4@sha256:52558d6b3ebee30568a21b3be189ff6fbfccdea588155ec11d8f46267d986767)
Unable to find image 'ocaml/opam:debian-11-ocaml-5.4@sha256:52558d6b3ebee30568a21b3be189ff6fbfccdea588155ec11d8f46267d986767' locally
docker.io/ocaml/opam@sha256:52558d6b3ebee30568a21b3be189ff6fbfccdea588155ec11d8f46267d986767: Pulling from ocaml/opam
10ffc47270cd: Already exists
fb7b830f9273: Already exists
db942f4be956: Already exists
19400b3dc631: Already exists
64f26db5ab23: Already exists
a1c9988984c5: Already exists
08134c884d95: Already exists
d1ec0d1e3240: Already exists
90c2d895970e: Already exists
8a294d84df78: Already exists
53e49dc18b62: Already exists
ed6ea05fd481: Already exists
17371f125731: Already exists
3d160e85c6c6: Already exists
61ce1ac71611: Already exists
e84500fcc1c1: Already exists
bcea18a91a53: Already exists
fdc0d4722fb4: Already exists
6f6958135bde: Already exists
dfbbf0c6781a: Already exists
434a6c33856d: Already exists
4f4fb700ef54: Already exists
b0e6f10fa166: Already exists
8fcbf5d66f12: Already exists
d2cf4ff8199b: Already exists
2c358a573c1b: Already exists
dc436ad3c00e: Already exists
34d141d6d28b: Already exists
8ac1bb77fbba: Already exists
abdcdd6d2cb0: Already exists
f85a0321d1a8: Already exists
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099f1f64ca72: Already exists
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f3c6018f02aa: Already exists
75da8a49b929: Already exists
b01e17816af1: Already exists
403392b3b6d9: Already exists
c07ccaf50151: Already exists
23a3082f410f: Pulling fs layer
fc4ca1d9f3b7: Pulling fs layer
7df9f18fc143: Pulling fs layer
2ffe14daf16a: Pulling fs layer
0a95ea73482d: Pulling fs layer
370fda50db59: Pulling fs layer
5f3797a7e2e2: Pulling fs layer
fc4ca1d9f3b7: Waiting
23a3082f410f: Waiting
7df9f18fc143: Waiting
2ffe14daf16a: Waiting
370fda50db59: Waiting
5f3797a7e2e2: Waiting
0a95ea73482d: Waiting
23a3082f410f: Download complete
23a3082f410f: Pull complete
fc4ca1d9f3b7: Verifying Checksum
fc4ca1d9f3b7: Download complete
fc4ca1d9f3b7: Pull complete
7df9f18fc143: Verifying Checksum
7df9f18fc143: Download complete
7df9f18fc143: Pull complete
2ffe14daf16a: Verifying Checksum
2ffe14daf16a: Download complete
0a95ea73482d: Verifying Checksum
0a95ea73482d: Download complete
370fda50db59: Verifying Checksum
370fda50db59: Download complete
5f3797a7e2e2: Verifying Checksum
5f3797a7e2e2: Download complete
2ffe14daf16a: Pull complete
0a95ea73482d: Pull complete
370fda50db59: Pull complete
5f3797a7e2e2: Pull complete
Digest: sha256:52558d6b3ebee30568a21b3be189ff6fbfccdea588155ec11d8f46267d986767
Status: Downloaded newer image for ocaml/opam@sha256:52558d6b3ebee30568a21b3be189ff6fbfccdea588155ec11d8f46267d986767
2025-12-30 15:29.21 ---> using "b83f9a1b1e7058c84a0843aaccdba586253bd1f8eebf7063966ba2aacb08b1f9" 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 15:29.21 ---> using "7ccdda5d35a73d1cbc31ac83020983ff6deae347cd5d71d7459b4d132e3d9b26" 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 15:29.21 ---> using "ea55d6389860cc377e5495f8d99e21421f1fca3e6bdcfe3be20c315382404e67" 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         2.4.1
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=11
# 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
2025-12-30 15:29.21 ---> using "d2335deef4bcae87b60b37c52469953789c150877eb992e472a6ed40a27bc61a" 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 15:29.21 ---> using "a3540549e0b96946347873bc1132d964b15b9f47348f8d0d47cc8848bce1e9cf" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-30 15:29.28 ---> saved as "e0d849b37c014f8f378acf7771892d460311763c33067aaf01bcbf9db785cbbb"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-12-30 15:29.46 ---> saved as "327cf31513691791a934d594931c90eac3535090a88ab50df4435a6f9230baa7"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian bullseye InRelease
- Get:2 http://deb.debian.org/debian-security bullseye-security InRelease [27.2 kB]
- Hit:3 http://deb.debian.org/debian bullseye-updates InRelease
- Get:4 http://deb.debian.org/debian-security bullseye-security/main amd64 Packages [438 kB]
- Fetched 465 kB in 1s (378 kB/s)
- Reading package lists...
2025-12-30 15:29.48 ---> saved as "2f18df729aee25e98a1e5507a19c1ddcb0d5462ff347f6e487262a88ec2ba86f"

/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 15:29.49 ---> saved as "7a7eac740712c3df8fee95935aaf1bb5ca317e65209620f283e654bd2a19f4ba"

/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 \"\\\"debian-11\\\"\"; 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 "\"debian-11\""; 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 15:29.55: Job failed: Failed: Build failed
2025-12-30 15:29.55: Log analysis:
2025-12-30 15:29.55: >>> 
[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 15:29.55: [SKIP] Package not available