(for PR #29312)
2026-01-30 20:43.27: New job: build mosaic.0.1.0, using opam dev
from https://github.com/ocaml/opam-repository.git#refs/pull/29312/head (4219a994291bbd7606c64e62833ff523b0ca72c2)
on debian-13-ocaml-4.12/amd64
To reproduce locally:
cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29312/head" && git reset --hard 4219a994
git fetch origin master
git merge --no-edit 0758d335cb8d1367e501844fb86be0b07e4918ac
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.12@sha256:706dc61d0174409402fcd2faae23602b9ff82740bbf62e63d39a1bed70f36645
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn mosaic.0.1.0 0.1.0
RUN opam reinstall mosaic.0.1.0; \
res=$?; \
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 "$pkg" != 'mosaic.0.1.0' && partial_fails="$partial_fails $pkg"; \
done; \
test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
exit 1
END-OF-DOCKERFILE
docker build -f ../Dockerfile .
2026-01-30 20:43.27: Using cache hint "ocaml/opam:debian-13-ocaml-4.12@sha256:706dc61d0174409402fcd2faae23602b9ff82740bbf62e63d39a1bed70f36645-mosaic.0.1.0-4219a994291bbd7606c64e62833ff523b0ca72c2"
2026-01-30 20:43.27: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.12@sha256:706dc61d0174409402fcd2faae23602b9ff82740bbf62e63d39a1bed70f36645)
(user (uid 1000) (gid 1000))
(workdir /home/opam)
(run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
(run (network host)
(shell "opam init --reinit --config .opamrc-sandbox -ni"))
(run (shell "opam option solver=builtin-0install && opam config report"))
(env OPAMDOWNLOADJOBS 1)
(env OPAMERRLOGLEN 0)
(env OPAMPRECISETRACKING 1)
(env CI true)
(env OPAM_REPO_CI true)
(run (shell "rm -rf opam-repository/"))
(copy (src .) (dst opam-repository/))
(run (shell "opam repository set-url --strict default opam-repository/"))
(run (network host)
(shell "opam update --depexts || true"))
(run (shell "opam pin add -k version -yn mosaic.0.1.0 0.1.0"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam reinstall mosaic.0.1.0;\
\n res=$?;\
\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 \"$pkg\" != 'mosaic.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
\n done;\
\n test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
\n exit 1"))
)
2026-01-30 20:43.27: Waiting for resource in pool OCluster
2026-01-30 20:56.09: Waiting for worker…
2026-01-30 20:59.20: Got resource from pool OCluster
Building on eumache
All commits already cached
Updating files: 79% (15323/19320)
Updating files: 80% (15456/19320)
Updating files: 81% (15650/19320)
Updating files: 82% (15843/19320)
Updating files: 83% (16036/19320)
Updating files: 84% (16229/19320)
Updating files: 85% (16422/19320)
Updating files: 86% (16616/19320)
Updating files: 87% (16809/19320)
Updating files: 88% (17002/19320)
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Updating files: 90% (17388/19320)
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Updating files: 96% (18548/19320)
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Updating files: 99% (19127/19320)
Updating files: 100% (19320/19320)
Updating files: 100% (19320/19320), done.
HEAD is now at 0758d335cb Merge pull request #29298 from raphael-proust/opam-publish-lwt_ppx.5.9.3
Updating 0758d335cb..4219a99429
Fast-forward
packages/matrix/matrix.0.1.0/opam | 42 +++++++++++++++++++++++++++++++++++
packages/mosaic/mosaic.0.1.0/opam | 46 +++++++++++++++++++++++++++++++++++++++
packages/toffee/toffee.0.1.0/opam | 41 ++++++++++++++++++++++++++++++++++
3 files changed, 129 insertions(+)
create mode 100644 packages/matrix/matrix.0.1.0/opam
create mode 100644 packages/mosaic/mosaic.0.1.0/opam
create mode 100644 packages/toffee/toffee.0.1.0/opam
(from ocaml/opam:debian-13-ocaml-4.12@sha256:706dc61d0174409402fcd2faae23602b9ff82740bbf62e63d39a1bed70f36645)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.12@sha256:706dc61d0174409402fcd2faae23602b9ff82740bbf62e63d39a1bed70f36645' locally
docker.io/ocaml/opam@sha256:706dc61d0174409402fcd2faae23602b9ff82740bbf62e63d39a1bed70f36645: Pulling from ocaml/opam
2ca1bfae7ba8: Already exists
3baeae2ed4cf: Already exists
b254ca288623: Already exists
745976a04e35: Already exists
a516242b2337: Already exists
9bb526cd9631: Already exists
3737e8f76884: Already exists
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386dffb80382: Already exists
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3a56fcb872cd: Already exists
5abffa2313de: Already exists
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87c92835260d: Already exists
5624e0ee5ca5: Already exists
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96e54dc9b357: Already exists
7c484d393436: Already exists
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Digest: sha256:706dc61d0174409402fcd2faae23602b9ff82740bbf62e63d39a1bed70f36645
Status: Downloaded newer image for ocaml/opam@sha256:706dc61d0174409402fcd2faae23602b9ff82740bbf62e63d39a1bed70f36645
2026-01-30 20:59.27 ---> using "37a96c9104701acb0fa54af4969be877dbd31b9d7bd863e099456413c15a33ad" from cache
/: (user (uid 1000) (gid 1000))
/: (workdir /home/opam)
/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-30 20:59.27 ---> using "bb345b501785366144b009d7cfae1eea34990fb96eeffa0c0d8be1da986427a5" 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
2026-01-30 20:59.27 ---> using "7c47547557493ff8ad774aec834946dbef389292d92d6f65e4ac0e41a3d71aff" 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=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 4.12
# invariant ["ocaml-base-compiler" {= "4.12.1"}]
# compiler-packages ocaml-base-compiler.4.12.1, ocaml-options-vanilla.1
# ocaml:native true
# ocaml:native-tools true
# ocaml:native-dynlink true
# ocaml:stubsdir /home/opam/.opam/4.12/lib/ocaml/stublibs:/home/opam/.opam/4.12/lib/ocaml
# ocaml:preinstalled false
# ocaml:compiler 4.12.1
2026-01-30 20:59.27 ---> using "94777ea99be2d1ba4ec4fab38523d3bf4a085eeb4f7f2c24546de6d7142d6520" 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/"))
2026-01-30 20:59.27 ---> using "14d67cde638858dbff71489690c707d1947a0c106aafde5b7c5f6e9bb7d656a8" from cache
/home/opam: (copy (src .) (dst opam-repository/))
2026-01-30 20:59.37 ---> saved as "5a52af1bc3e1756da5346742242e4561aec1e22ff6ad371fbe0115d49f1847a2"
/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-30 21:00.01 ---> saved as "bc0a5f19b2df434c20d5595118cd6a076fbe9625f344a4c7083fd6b913f1011e"
/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 [98.2 kB]
- Fetched 189 kB in 0s (1930 kB/s)
- Reading package lists...
2026-01-30 21:00.03 ---> saved as "b619b0bdd942c110e6a7be196795ced41b517526b753ed5f9e1bbd709a25fd4d"
/home/opam: (run (shell "opam pin add -k version -yn mosaic.0.1.0 0.1.0"))
mosaic is now pinned to version 0.1.0
2026-01-30 21:00.04 ---> saved as "aab7a65b5ece4a2ecf20414b967baf7b602f193529486e15dd479ad6195ca951"
/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam reinstall mosaic.0.1.0;\
\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 \"$pkg\" != 'mosaic.0.1.0' && partial_fails=\"$partial_fails $pkg\";\
\n done;\
\n test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
\n exit 1"))
mosaic.0.1.0 is not installed. Install it? [Y/n] y
* Incompatible packages:
- (invariant) -> ocaml-base-compiler = 4.12.1
- mosaic -> ocaml >= 5.1 -> ocaml-variants < 5.5.1~
You can temporarily relax the switch invariant with `--update-invariant'
* Missing dependency:
- mosaic -> ocaml >= 5.1 -> ocaml-variants < 5.5.1~ -> ocaml-beta
unmet availability conditions: 'enable-ocaml-beta-repository'
* Missing dependency:
- mosaic -> ocaml >= 5.1 -> ocaml-variants >= 5.1.0~ -> system-msvc
unmet availability conditions: 'os = "win32"'
No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall mosaic.0.1.0;
res=$?;
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 "$pkg" != 'mosaic.0.1.0' && partial_fails="$partial_fails $pkg";
done;
test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
exit 1" failed with exit status 20
2026-01-30 21:00.25: Job failed: Failed: Build failed
2026-01-30 21:00.25: Log analysis:
2026-01-30 21:00.25: >>>
No solution found, exiting
(score = 100)
2026-01-30 21:00.25: [SKIP] Package not available