(for PR #29312)
2026-01-30 20:43.28: New job: build mosaic.0.1.0, using opam dev
from https://github.com/ocaml/opam-repository.git#refs/pull/29312/head (4219a994291bbd7606c64e62833ff523b0ca72c2)
on centos-9-ocaml-4.14/amd64
To reproduce locally:
cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29312/head" && git reset --hard 4219a994
git fetch origin master
git merge --no-edit 0758d335cb8d1367e501844fb86be0b07e4918ac
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-9-ocaml-4.14@sha256:22f18b9024c12da265a003db193d0fd3d099963bd2ba71a3332a94ce264fc3f4
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn mosaic.0.1.0 0.1.0
RUN opam reinstall mosaic.0.1.0; \
res=$?; \
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 "\"centos-9\""; 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: ${partial_fails}"; \
exit 1
END-OF-DOCKERFILE
docker build -f ../Dockerfile .
2026-01-30 20:43.28: Using cache hint "ocaml/opam:centos-9-ocaml-4.14@sha256:22f18b9024c12da265a003db193d0fd3d099963bd2ba71a3332a94ce264fc3f4-mosaic.0.1.0-4219a994291bbd7606c64e62833ff523b0ca72c2"
2026-01-30 20:43.28: Using OBuilder spec:
((from ocaml/opam:centos-9-ocaml-4.14@sha256:22f18b9024c12da265a003db193d0fd3d099963bd2ba71a3332a94ce264fc3f4)
(user (uid 1000) (gid 1000))
(workdir /home/opam)
(run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
(run (network host)
(shell "opam init --reinit --config .opamrc-sandbox -ni"))
(run (shell "opam option solver=builtin-0install && opam config report"))
(env OPAMDOWNLOADJOBS 1)
(env OPAMERRLOGLEN 0)
(env OPAMPRECISETRACKING 1)
(env CI true)
(env OPAM_REPO_CI true)
(run (shell "rm -rf opam-repository/"))
(copy (src .) (dst opam-repository/))
(run (shell "opam repository set-url --strict default opam-repository/"))
(run (network host)
(shell "opam update --depexts || true"))
(run (shell "opam pin add -k version -yn mosaic.0.1.0 0.1.0"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam reinstall mosaic.0.1.0;\
\n res=$?;\
\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 \"\\\"centos-9\\\"\"; 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 20:43.28: Waiting for resource in pool OCluster
2026-01-30 20:59.55: Waiting for worker…
2026-01-30 21:01.47: Got resource from pool OCluster
Building on clete
All commits already cached
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:centos-9-ocaml-4.14@sha256:22f18b9024c12da265a003db193d0fd3d099963bd2ba71a3332a94ce264fc3f4)
2026-01-30 21:02.00 ---> using "5d1b47cc28ce6dbbd12277d32f914d8072a9671215a21b6cfd3e7638271b5ef9" 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 21:02.00 ---> using "e501806d05b977b4937b0904d4882289676224a0447803697ffe08337c31503c" 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 21:02.00 ---> using "c33c2b4749e4ddd386b0f46df1cd4f04ac84f1ae60b5e38444566f24cbd3a139" 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=centos os-version=9
# 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
2026-01-30 21:02.00 ---> using "7c3553c4f422bd8b6cb2eb0903249354f1567c9a7d83f4cca0928ce3aadad157" 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 21:02.00 ---> using "e8f9f3c252d89bac30956b7ef060870b21893f9db7c99bd80af02be21cca7f6b" from cache
/home/opam: (copy (src .) (dst opam-repository/))
2026-01-30 21:02.17 ---> saved as "27c6ed27c1e25af28a593a2a6bc586f785c7b6f3eaaf65b9f8af28a92550d2c9"
/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-30 21:02.37 ---> saved as "00f99e1c0671348aa144b0573e3eea05bb22c88ddf6fe6279f2492fe671b4d2d"
/home/opam: (run (network host)
(shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 9 - BaseOS 108 kB/s | 15 kB 00:00
- CentOS Stream 9 - BaseOS 16 MB/s | 8.9 MB 00:00
- CentOS Stream 9 - AppStream 103 kB/s | 15 kB 00:00
- CentOS Stream 9 - AppStream 14 MB/s | 26 MB 00:01
- CentOS Stream 9 - CRB 108 kB/s | 14 kB 00:00
- CentOS Stream 9 - CRB 9.0 MB/s | 7.6 MB 00:00
- CentOS Stream 9 - Extras packages 121 kB/s | 17 kB 00:00
- Metadata cache created.
2026-01-30 21:02.54 ---> saved as "e610f6c6346deda80b1461b7be20ee42ec2b0a0b484ddda6c1ddf496c6faf9ec"
/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 21:02.54 ---> saved as "60547f993455ca1afc69710cb417f590f3c82e756de1180d017d153f67dffb1a"
/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 \"\\\"centos-9\\\"\"; 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: ${partial_fails}\";\
\n exit 1"))
mosaic.0.1.0 is not installed. Install it? [Y/n] y
* No agreement on the version of ocaml:
- (invariant) -> ocaml-base-compiler = 4.14.2 -> ocaml = 4.14.2
- mosaic -> ocaml >= 5.1
You can temporarily relax the switch invariant with `--update-invariant'
No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall mosaic.0.1.0;
res=$?;
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 "\"centos-9\""; 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 21:03.16: Job failed: Failed: Build failed
2026-01-30 21:03.16: Log analysis:
2026-01-30 21:03.16: >>>
No solution found, exiting
(score = 100)
2026-01-30 21:03.16: [SKIP] Package not available