(for PR #26907)

2026-02-10 15:50.02: New job: build apron.v0.9.15, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/26907/head (b6229f0d14497cac47fc1ccd0ef31dd6c590ddfe)
                              on debian-13-ocaml-5.4/arm32v7

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/26907/head" && git reset --hard b6229f0d
git fetch origin master
git merge --no-edit 6a35634d6446e6151b438792d64cc32db88a1a2e
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:628d83c867e791f319d5ec6bd52c7ce2bd581e34e823ea51810a8afa91590ba4
SHELL [ "/usr/bin/linux32", "/bin/sh", "-c" ]
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn apron.v0.9.15 v0.9.15
RUN opam reinstall apron.v0.9.15; \
    res=$?; \
    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 "$pkg" != 'apron.v0.9.15' && partial_fails="$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 .

2026-02-10 15:50.02: Using cache hint "ocaml/opam:debian-13-ocaml-5.4@sha256:628d83c867e791f319d5ec6bd52c7ce2bd581e34e823ea51810a8afa91590ba4-apron.v0.9.15-b6229f0d14497cac47fc1ccd0ef31dd6c590ddfe"
2026-02-10 15:50.02: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:628d83c867e791f319d5ec6bd52c7ce2bd581e34e823ea51810a8afa91590ba4)
 (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 apron.v0.9.15 v0.9.15"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall apron.v0.9.15;\
             \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 \"$pkg\" != 'apron.v0.9.15' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-02-10 15:50.02: Waiting for resource in pool OCluster
2026-02-10 15:50.03: Waiting for worker…
2026-02-10 15:50.03: Got resource from pool OCluster
Building on molpadia.caelum.ci.dev
Updating files:  59% (11467/19367)
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Updating files: 100% (19367/19367), done.
HEAD is now at 66e177c9cc [new release] mirage-crypto (7 packages) (2.0.3)
HEAD is now at 6a35634d64 Merge pull request #29363 from hannesm/maint-none-feb-2026
Auto-merging packages/apron/apron.v0.9.15/opam
Merge made by the 'ort' strategy.
 packages/apron/apron.v0.9.12/opam | 5 ++++-
 packages/apron/apron.v0.9.14/opam | 8 +++++++-
 packages/apron/apron.v0.9.15/opam | 5 ++++-
 3 files changed, 15 insertions(+), 3 deletions(-)

(from ocaml/opam:debian-13-ocaml-5.4@sha256:628d83c867e791f319d5ec6bd52c7ce2bd581e34e823ea51810a8afa91590ba4)
Unable to find image 'ocaml/opam:debian-13-ocaml-5.4@sha256:628d83c867e791f319d5ec6bd52c7ce2bd581e34e823ea51810a8afa91590ba4' locally
docker.io/ocaml/opam@sha256:628d83c867e791f319d5ec6bd52c7ce2bd581e34e823ea51810a8afa91590ba4: Pulling from ocaml/opam
e712004ad7e7: Already exists
f4a2e9816aad: Already exists
b14c4857e1a9: Already exists
9c930e2cb2ec: Already exists
19df24c44b68: Already exists
2a9173c17dde: Already exists
f05d30e027df: Already exists
847f46d86916: Already exists
3eeb3101b6ee: Already exists
5da418d5a6de: Already exists
462770ac6080: Already exists
aa0023295cef: Already exists
257f31c177b1: Already exists
336791f88cff: Already exists
be89abc29155: Already exists
f77baff82d34: Already exists
907bc802738d: Already exists
907bc802738d: Already exists
81c246c404f9: Already exists
b6e475e3854d: Already exists
fef9953c549d: Already exists
38fcba0da00a: Already exists
4f4fb700ef54: Already exists
03880e84f14b: Already exists
b5aeaeb94e07: Already exists
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be3c368bde1b: Already exists
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ef19f07d583e: Already exists
0e25da84ed2f: Already exists
09d767361b2b: Already exists
4550e0b1212a: Already exists
a26a297765ea: Already exists
733a40f77b8a: Pulling fs layer
be94bce5bfa5: Pulling fs layer
efbf7b6b27cb: Pulling fs layer
255833240456: Pulling fs layer
2fe358b981f9: Pulling fs layer
e69853d66542: Pulling fs layer
129311f42223: Pulling fs layer
255833240456: Waiting
2fe358b981f9: Waiting
e69853d66542: Waiting
129311f42223: Waiting
be94bce5bfa5: Verifying Checksum
be94bce5bfa5: Download complete
733a40f77b8a: Verifying Checksum
733a40f77b8a: Download complete
733a40f77b8a: Pull complete
be94bce5bfa5: Pull complete
2fe358b981f9: Verifying Checksum
2fe358b981f9: Download complete
e69853d66542: Verifying Checksum
e69853d66542: Download complete
efbf7b6b27cb: Verifying Checksum
efbf7b6b27cb: Download complete
efbf7b6b27cb: Pull complete
129311f42223: Verifying Checksum
129311f42223: Download complete
255833240456: Download complete
255833240456: Pull complete
2fe358b981f9: Pull complete
e69853d66542: Pull complete
129311f42223: Pull complete
Digest: sha256:628d83c867e791f319d5ec6bd52c7ce2bd581e34e823ea51810a8afa91590ba4
Status: Downloaded newer image for ocaml/opam@sha256:628d83c867e791f319d5ec6bd52c7ce2bd581e34e823ea51810a8afa91590ba4
2026-02-10 15:50.09 ---> using "886b69aed9ea9c1ba3ffd96ef12e36c903582bcf74205ba852be92083f58b0ad" 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"))
2026-02-10 15:50.09 ---> using "99a805d93d1f4d4ab7508e424dab408f42d36917b2fc115cb29ee706a7538e80" 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.

Continue? [Y/n] y
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.

Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-02-10 15:50.09 ---> using "51d2676b1d31a009f36b6da90885076b61e203e744a363ffc7e40ea6365b944c" 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=arm32 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                 79
# 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
2026-02-10 15:50.09 ---> using "b603c1f47cccbd10e9a7cd0b1557750f8a3a4af22201ff4221e14417b692356a" 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/"))
2026-02-10 15:50.09 ---> using "55c8aeca62644a3697db5f59561b9985e4487625931de56ce56241d1b52cadca" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-02-10 15:50.17 ---> saved as "b3e098fa65470fdd2cf7260914bcc159f1842114ad370ff7ed4996d535fec9e1"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-02-10 15:50.56 ---> saved as "f9a2ea4c0f493245e512638596c0e43f27eca0dbeac06b73ebbbc33da92267b5"

/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]
- Get:4 http://deb.debian.org/debian-security trixie-security/main armhf Packages [98.0 kB]
- Fetched 189 kB in 0s (1108 kB/s)
- Reading package lists...
- 
2026-02-10 15:50.57 ---> saved as "0e5b04d69d051f52c89e364429340191ef892ffa24b6d6bb2f15c9dbff1f06ad"

/home/opam: (run (shell "opam pin add -k version -yn apron.v0.9.15 v0.9.15"))
apron is now pinned to version v0.9.15
2026-02-10 15:50.58 ---> saved as "363edbd5aa7df9f46b487bbfeacb9d402934fd81a09bc3bb2cf0d60788a25b5f"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall apron.v0.9.15;\
                        \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 \"$pkg\" != 'apron.v0.9.15' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
apron.v0.9.15 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler >= 5.4.0 -> ocaml-compiler = 5.4.0 -> ocaml-option-bytecode-only
    - apron >= v0.9.15 -> camlidl
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler >= 5.4.0
    - apron >= v0.9.15 -> camlidl -> ocaml < 5.0 -> ocaml-variants
  * Missing dependency:
    - apron >= v0.9.15 -> camlidl -> ocaml < 5.0 -> ocaml-base-compiler (<= 3.07+1 | = 3.07+2 | = 3.08.0 | = 3.08.1 | = 3.08.2 | = 3.08.3 | = 3.08.4 | = 3.09.0) | ocaml-system (<= 3.07+1 | = 3.07+2 | >= 3.08.0) | ocaml-variants < 3.09.1~
    not available because the package is pinned to version 5.4.0
    unmet availability conditions, e.g. 'sys-ocaml-version = "5.4.0" & (os != "win32" | sys-ocaml-libc = "msvc")'
    no matching version
  * Missing dependency:
    - apron >= v0.9.15 -> camlidl -> ocaml < 5.0 -> ocaml-variants -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - apron >= v0.9.15 -> camlidl -> ocaml < 5.0 -> ocaml-variants -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/linux32" "/bin/sh" "-c" "opam reinstall apron.v0.9.15;
        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 "$pkg" != 'apron.v0.9.15' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-02-10 15:51.16: Job failed: Failed: Build failed
2026-02-10 15:51.16: Log analysis:
2026-02-10 15:51.16: >>> 
No solution found, exiting
 (score = 100)
2026-02-10 15:51.16: [SKIP] Package not available