(for PR #29110)

2026-01-31 15:31.26: New job: build conf-llvm-static.21, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29110/head (e3b282a9c0eb1ef824245e3ffb935dc8fcc9b1ea)
                              on ubuntu-25.04-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29110/head" && git reset --hard e3b282a9
git fetch origin master
git merge --no-edit 277244107784e7f5e6b57eaae2e769caae2a4906
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-25.04-ocaml-4.14@sha256:863dda63d8d9d4b752c550777d3338cee2095ba25ff8114fc5688b1917f69f14
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn conf-llvm-static.21 21
RUN opam reinstall conf-llvm-static.21; \
    res=$?; \
    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-25.04\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'conf-llvm-static.21' && partial_fails="$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 .

2026-01-31 15:31.26: Using cache hint "ocaml/opam:ubuntu-25.04-ocaml-4.14@sha256:863dda63d8d9d4b752c550777d3338cee2095ba25ff8114fc5688b1917f69f14-conf-llvm-static.21-e3b282a9c0eb1ef824245e3ffb935dc8fcc9b1ea"
2026-01-31 15:31.26: Using OBuilder spec:
((from ocaml/opam:ubuntu-25.04-ocaml-4.14@sha256:863dda63d8d9d4b752c550777d3338cee2095ba25ff8114fc5688b1917f69f14)
 (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.21 21"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall conf-llvm-static.21;\
             \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-25.04\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'conf-llvm-static.21' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-31 15:31.26: Waiting for resource in pool OCluster
2026-01-31 15:33.11: Waiting for worker…
2026-01-31 15:35.21: Got resource from pool OCluster
Building on eumache
All commits already cached
HEAD is now at 2772441077 Merge pull request #29314 from jmid/more-fstar-ocaml-upper-bounds
Merge made by the 'ort' strategy.
 packages/conf-llvm-shared/conf-llvm-shared.20/opam | 38 +++++++++++
 packages/conf-llvm-shared/conf-llvm-shared.21/opam | 38 +++++++++++
 packages/conf-llvm-static/conf-llvm-static.20/opam | 38 +++++++++++
 packages/conf-llvm-static/conf-llvm-static.21/opam | 38 +++++++++++
 packages/llvm/llvm.20-shared/opam                  | 77 ++++++++++++++++++++++
 packages/llvm/llvm.20-static/opam                  | 76 +++++++++++++++++++++
 packages/llvm/llvm.21-shared/opam                  | 77 ++++++++++++++++++++++
 packages/llvm/llvm.21-static/opam                  | 76 +++++++++++++++++++++
 8 files changed, 458 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-25.04-ocaml-4.14@sha256:863dda63d8d9d4b752c550777d3338cee2095ba25ff8114fc5688b1917f69f14)
Unable to find image 'ocaml/opam:ubuntu-25.04-ocaml-4.14@sha256:863dda63d8d9d4b752c550777d3338cee2095ba25ff8114fc5688b1917f69f14' locally
docker.io/ocaml/opam@sha256:863dda63d8d9d4b752c550777d3338cee2095ba25ff8114fc5688b1917f69f14: Pulling from ocaml/opam
c62190a9ab61: Already exists
40711a051401: Already exists
c085f5ff2319: Already exists
412ed4068436: Already exists
2f55881e7c17: Already exists
208628d88256: Already exists
15e39b9245ec: Already exists
dd37ca65b191: Already exists
6eed2619f1f0: Already exists
220a6634738b: Already exists
5ae888d7638a: Already exists
99610966bbbb: Already exists
98b09a045b22: Already exists
2c04c9e7274a: Already exists
839afca287cc: Already exists
ccf7dd9d1cbf: Already exists
b6ea8c876c09: Already exists
b6ea8c876c09: Already exists
15f333aabb94: Already exists
477b7eb2609b: Already exists
3326c27d9244: Already exists
b8cb47717717: Already exists
4f4fb700ef54: Already exists
2e070f5cd521: Already exists
94b1b55e95dc: Already exists
07aa22141608: Already exists
d7bb015da553: Already exists
9d41ae5c57e0: Already exists
85a0ef716932: Already exists
ca92d3abca91: Already exists
e8a350942cff: Already exists
a308a5ee6283: Already exists
902174a11eba: Already exists
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07634e87d0e8: Already exists
cb0f432311ea: Already exists
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5b2edbf5da17: Already exists
96a20d219a97: Already exists
Digest: sha256:863dda63d8d9d4b752c550777d3338cee2095ba25ff8114fc5688b1917f69f14
Status: Downloaded newer image for ocaml/opam@sha256:863dda63d8d9d4b752c550777d3338cee2095ba25ff8114fc5688b1917f69f14
2026-01-31 15:35.23 ---> using "a087cecdfee3c27a6dfd3b374223c58ceb06bb9197e0c5bfa09038c2912fa098" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-31 15:35.23 ---> using "93809a93072f62879672560118833930fb657fe62e57497e431b3dcd6cf6bcd4" 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
[NOTE] The 'jobs' option was reset, its value was 255 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=255 --global
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-01-31 15:35.23 ---> using "2fb568c781a7b5f02e260b16805b549ddbad6f16d36f2565f93060c38015e216" 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=25.04
# 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
2026-01-31 15:35.23 ---> using "8a97cba403a1024951032b378b17f7f7127b98af4fb18b9e56ce98b51d688747" 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/"))
2026-01-31 15:35.23 ---> using "360d5658a6b60430d0745bc850ebf0c19e63f80637cfb7cfdd39cb8f883b064b" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-31 15:35.35 ---> saved as "752a3bc79ef5c8d00cd55cf005c768b9414751b477e1c54bd8ffe6117b5f5b8c"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-31 15:35.57 ---> saved as "42ed5b3b45a44faa9c449d68c86ceff62e1ad2287bf98c1dd4ba03fc04dcb3fc"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://security.ubuntu.com/ubuntu plucky-security InRelease [126 kB]
- Get:2 http://security.ubuntu.com/ubuntu plucky-security/restricted amd64 Packages [330 kB]
- Get:3 http://security.ubuntu.com/ubuntu plucky-security/universe amd64 Packages [233 kB]
- Get:4 http://security.ubuntu.com/ubuntu plucky-security/main amd64 Packages [290 kB]
- Hit:5 http://archive.ubuntu.com/ubuntu plucky InRelease
- Get:6 http://archive.ubuntu.com/ubuntu plucky-updates InRelease [126 kB]
- Get:7 http://archive.ubuntu.com/ubuntu plucky-backports InRelease [126 kB]
- Get:8 http://archive.ubuntu.com/ubuntu plucky-updates/main amd64 Packages [452 kB]
- Get:9 http://archive.ubuntu.com/ubuntu plucky-updates/restricted amd64 Packages [363 kB]
- Get:10 http://archive.ubuntu.com/ubuntu plucky-updates/universe amd64 Packages [325 kB]
- Fetched 2371 kB in 1s (2747 kB/s)
- Reading package lists...
- 
2026-01-31 15:36.00 ---> saved as "2d44f50f5f881902a4e98a29fa1a6c56bb4f7f0ab99cc55f24aea0f025bbe0fc"

/home/opam: (run (shell "opam pin add -k version -yn conf-llvm-static.21 21"))
conf-llvm-static is now pinned to version 21
2026-01-31 15:36.01 ---> saved as "55df6161283d1e999a511c934caa7d7fb2dd85bee4df53e97cd3db408f947376"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall conf-llvm-static.21;\
                        \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-25.04\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'conf-llvm-static.21' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
[ERROR] Package conf-llvm-static.21 depends on the unavailable system package 'llvm-21-dev'. You can use `--no-depexts' to attempt installation anyway.
"/usr/bin/env" "bash" "-c" "opam reinstall conf-llvm-static.21;
        res=$?;
        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-25.04\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'conf-llvm-static.21' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 5
2026-01-31 15:36.08: Job failed: Failed: Build failed
2026-01-31 15:36.08: Log analysis:
2026-01-31 15:36.08: >>> 
[ERROR] Package conf-llvm-static.21 depends on the unavailable system package 'llvm-21-dev'. You can use `--no-depexts' to attempt installation anyway.
 (score = 100)
2026-01-31 15:36.08: [SKIP] Package not available