Build:
  1. 0
2026-01-07 18:57.49: New job: build bitwuzla-cxx.0.2.0, lower-bounds, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29196/head (73b2f0da1939c4b0c87bfac1421800561d35c434)
                              on debian-13-ocaml-4.11/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29196/head" && git reset --hard 73b2f0da
git fetch origin master
git merge --no-edit 2dee2fe30df966714e056f8af164fe0ed7648a63
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.11@sha256:db839ee191f4d70aa81b493e2414ef2fad60144c0685b921c31a0c4fc41020e9
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn bitwuzla-cxx.0.2.0 0.2.0
RUN opam reinstall bitwuzla-cxx.0.2.0; \
    res=$?; \
    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 "$pkg" != 'bitwuzla-cxx.0.2.0' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
ENV OPAMCRITERIA="+removed,+count[version-lag,solution]"
ENV OPAMFIXUPCRITERIA="+removed,+count[version-lag,solution]"
ENV OPAMUPGRADECRITERIA="+removed,+count[version-lag,solution]"
RUN opam reinstall bitwuzla-cxx.0.2.0; \
    res=$?; \
    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 "$pkg" != 'bitwuzla-cxx.0.2.0' && partial_fails="$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 .

2026-01-07 18:57.49: Using cache hint "ocaml/opam:debian-13-ocaml-4.11@sha256:db839ee191f4d70aa81b493e2414ef2fad60144c0685b921c31a0c4fc41020e9-bitwuzla-cxx.0.2.0-73b2f0da1939c4b0c87bfac1421800561d35c434"
2026-01-07 18:57.49: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.11@sha256:db839ee191f4d70aa81b493e2414ef2fad60144c0685b921c31a0c4fc41020e9)
 (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 bitwuzla-cxx.0.2.0 0.2.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall bitwuzla-cxx.0.2.0;\
             \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 \"$pkg\" != 'bitwuzla-cxx.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (env OPAMCRITERIA +removed,+count[version-lag,solution])
 (env OPAMFIXUPCRITERIA +removed,+count[version-lag,solution])
 (env OPAMUPGRADECRITERIA +removed,+count[version-lag,solution])
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall bitwuzla-cxx.0.2.0;\
             \n        res=$?;\
             \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 \"$pkg\" != 'bitwuzla-cxx.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-07 18:57.49: Connecting to build cluster…
2026-01-07 18:57.49: Waiting for resource in pool OCluster
2026-01-07 18:57.49: Waiting for worker…
2026-01-07 19:03.49: Got resource from pool OCluster
Building on clete
All commits already cached
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Updating files: 100% (19147/19147), done.
HEAD is now at 2dee2fe30d Merge pull request #29195 from raphael-proust/lwt-fix-ocamlfind-dep-constraint
Updating 2dee2fe30d..73b2f0da19
Fast-forward
 packages/bitwuzla-cxx/bitwuzla-cxx.0.2.0/opam | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(from ocaml/opam:debian-13-ocaml-4.11@sha256:db839ee191f4d70aa81b493e2414ef2fad60144c0685b921c31a0c4fc41020e9)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.11@sha256:db839ee191f4d70aa81b493e2414ef2fad60144c0685b921c31a0c4fc41020e9' locally
docker.io/ocaml/opam@sha256:db839ee191f4d70aa81b493e2414ef2fad60144c0685b921c31a0c4fc41020e9: Pulling from ocaml/opam
281b80c799de: Already exists
ce76feb86791: Already exists
7984eb0e5b45: Already exists
56c452a960b1: Already exists
b85825bef00a: Already exists
d6ff43dfb85c: Already exists
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Digest: sha256:db839ee191f4d70aa81b493e2414ef2fad60144c0685b921c31a0c4fc41020e9
Status: Downloaded newer image for ocaml/opam@sha256:db839ee191f4d70aa81b493e2414ef2fad60144c0685b921c31a0c4fc41020e9
2026-01-07 19:04.16 ---> saved as "86e5ba47af6f99cdcabc318ae03de9344d25a983c11f3d35819d10245c184546"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-07 19:04.16 ---> saved as "254c73e2ba2daae55fd28d2ec13e17f62792c904deed6d19d0799f916a13300a"

/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
2026-01-07 19:04.47 ---> saved as "3bdddccfeb5ab69f5d18b78f3aa3eb4049cf0fd9a59f53e0455d585a8f3cd6f6"

/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=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       4.11
# invariant            ["ocaml-base-compiler" {= "4.11.2"}]
# compiler-packages    ocaml-base-compiler.4.11.2
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.11/lib/ocaml/stublibs:/home/opam/.opam/4.11/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.11.2
2026-01-07 19:04.48 ---> saved as "1505df2569e770089e777778296400c6a8b079589202a0815e5b0fc5f2717409"

/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/"))
2026-01-07 19:04.58 ---> saved as "aaffb6ccc1a7512ab1fc9f3af2e55092987fd9dcb306519bf218bba816b69894"

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-07 19:05.09 ---> saved as "2d5b9d9c8e522f276ca00521efae5c33e4bd007b72802550f33642c567c8578c"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-07 19:05.35 ---> saved as "0bb9ec3436609273927beb48dc35130bbd93b966f38dd320a9f7f1bc005f33f5"

/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 amd64 Packages [94.2 kB]
- Fetched 185 kB in 0s (1044 kB/s)
- Reading package lists...
- 
2026-01-07 19:05.37 ---> saved as "5c726fe0622f0118a91062e871de533a8ef308208f3d3c28ef06aa34acdc4fc8"

/home/opam: (run (shell "opam pin add -k version -yn bitwuzla-cxx.0.2.0 0.2.0"))
bitwuzla-cxx is now pinned to version 0.2.0
2026-01-07 19:05.39 ---> saved as "8aad9149f6481f9732083e94daad83f55df996688c76eeb47ea500b07bb25272"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall bitwuzla-cxx.0.2.0;\
                        \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 \"$pkg\" != 'bitwuzla-cxx.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
bitwuzla-cxx.0.2.0 is not installed. Install it? [Y/n] y
  * No agreement on the version of ocaml:
    - (invariant) -> ocaml-base-compiler = 4.11.2 -> ocaml = 4.11.2
    - bitwuzla-cxx < 0.3.0 -> ocaml >= 4.12
    You can temporarily relax the switch invariant with `--update-invariant'
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.11.2
    - bitwuzla-cxx < 0.3.0 -> ocaml >= 4.12 -> ocaml-variants >= 5.0.0~
  * Missing dependency:
    - bitwuzla-cxx < 0.3.0 -> ocaml >= 4.12 -> ocaml-variants >= 5.0.0~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall bitwuzla-cxx.0.2.0;
        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 "$pkg" != 'bitwuzla-cxx.0.2.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-01-07 19:06.21: Job failed: Failed: Build failed
2026-01-07 19:06.21: Log analysis:
2026-01-07 19:06.21: >>> 
No solution found, exiting
 (score = 100)
2026-01-07 19:06.21: [SKIP] Package not available