(for PR #29556)
2026-03-18 04:27.37: New job: build alcobar.0.3, using opam dev
from https://github.com/ocaml/opam-repository.git#refs/pull/29556/head (446e4a3df0d605e197d04cd013cc3f97a00250c8)
on centos-10-ocaml-5.4/amd64
To reproduce locally:
cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29556/head" && git reset --hard 446e4a3d
git fetch origin master
git merge --no-edit 53dfac41ae8a3b6df7fe79433078607633cc3f4b
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-10-ocaml-5.4@sha256:ea343a5768573236a736207f66f2c6df4b6a5d754a2e36c488940d0e99f50734
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn alcobar.0.3 0.3
RUN opam reinstall alcobar.0.3; \
res=$?; \
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-10\""; then \
echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
fi; \
test "$pkg" != 'alcobar.0.3' && partial_fails="$partial_fails $pkg"; \
done; \
test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
exit 1
END-OF-DOCKERFILE
docker build -f ../Dockerfile .
2026-03-18 04:27.37: Using cache hint "ocaml/opam:centos-10-ocaml-5.4@sha256:ea343a5768573236a736207f66f2c6df4b6a5d754a2e36c488940d0e99f50734-alcobar.0.3-446e4a3df0d605e197d04cd013cc3f97a00250c8"
2026-03-18 04:27.37: Using OBuilder spec:
((from ocaml/opam:centos-10-ocaml-5.4@sha256:ea343a5768573236a736207f66f2c6df4b6a5d754a2e36c488940d0e99f50734)
(user (uid 1000) (gid 1000))
(workdir /home/opam)
(run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
(run (network host)
(shell "opam init --reinit --config .opamrc-sandbox -ni"))
(run (shell "opam option solver=builtin-0install && opam config report"))
(env OPAMDOWNLOADJOBS 1)
(env OPAMERRLOGLEN 0)
(env OPAMPRECISETRACKING 1)
(env CI true)
(env OPAM_REPO_CI true)
(run (shell "rm -rf opam-repository/"))
(copy (src .) (dst opam-repository/))
(run (shell "opam repository set-url --strict default opam-repository/"))
(run (network host)
(shell "opam update --depexts || true"))
(run (shell "opam pin add -k version -yn alcobar.0.3 0.3"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam reinstall alcobar.0.3;\
\n res=$?;\
\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-10\\\"\"; then\
\n echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
\n fi;\
\n test \"$pkg\" != 'alcobar.0.3' && partial_fails=\"$partial_fails $pkg\";\
\n done;\
\n test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
\n exit 1"))
)
2026-03-18 04:27.37: Waiting for resource in pool OCluster
2026-03-18 04:27.38: Waiting for worker…
2026-03-18 04:27.38: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
All commits already cached
HEAD is now at 53dfac41ae Merge pull request #29490 from tmattio/release-raven-1.0.0_alpha3
Updating 53dfac41ae..446e4a3df0
Fast-forward
packages/alcobar/alcobar.0.3/opam | 52 +++++++++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 packages/alcobar/alcobar.0.3/opam
(from ocaml/opam:centos-10-ocaml-5.4@sha256:ea343a5768573236a736207f66f2c6df4b6a5d754a2e36c488940d0e99f50734)
2026-03-18 04:28.41 ---> saved as "b1228baef98f703b1634d99d62022702861dcc8453059cccb798d98c876aa7b6"
/: (user (uid 1000) (gid 1000))
/: (workdir /home/opam)
/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-18 04:28.41 ---> saved as "6c55a4a8e26e160052c0b624a6d5ca9e31b8bf50cd4fc1574f223cec9e5aa074"
/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
2026-03-18 04:29.05 ---> saved as "72c2b09ece6ade44e6a921127fa02cd9570eeae488726fbbd022939f9861fa61"
/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=10
# 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 5.4
# invariant ["ocaml-base-compiler" {= "5.4.0"}]
# compiler-packages ocaml-base-compiler.5.4.0, ocaml-compiler.5.4.0, ocaml-options-vanilla.1
# ocaml:native true
# ocaml:native-tools true
# ocaml:native-dynlink true
# 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
2026-03-18 04:29.06 ---> saved as "0c865170774e769ae04e932d146baf8fad90fdf12e56d8a4ca52942ecc7bb4ba"
/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/"))
2026-03-18 04:29.14 ---> saved as "efd6b47ec0af31b0289c53419e8e95fac271e9a9de4e5297e32f19b35014c487"
/home/opam: (copy (src .) (dst opam-repository/))
2026-03-18 04:29.22 ---> saved as "888e0f22041c4c53f0d7d284d018da24795b919ff42b54ea621a6d07fa027c63"
/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-18 04:29.42 ---> saved as "7b4670ca0c0f6f5ed9e5046f08fc53083cda41b866c67c77fb658032b8ed0d74"
/home/opam: (run (network host)
(shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 10 - BaseOS 64 kB/s | 14 kB 00:00
- CentOS Stream 10 - BaseOS 5.9 MB/s | 6.9 MB 00:01
- CentOS Stream 10 - AppStream 120 kB/s | 15 kB 00:00
- CentOS Stream 10 - AppStream 2.7 MB/s | 3.6 MB 00:01
- CentOS Stream 10 - CRB 33 kB/s | 14 kB 00:00
- CentOS Stream 10 - CRB 1.2 MB/s | 831 kB 00:00
- CentOS Stream 10 - Extras packages 131 kB/s | 17 kB 00:00
- Metadata cache created.
2026-03-18 04:29.50 ---> saved as "2efbff230b56e8172c4fae6b9b58319602cdf156ac5fdf77c944bef991868859"
/home/opam: (run (shell "opam pin add -k version -yn alcobar.0.3 0.3"))
alcobar is now pinned to version 0.3
2026-03-18 04:29.50 ---> saved as "95050416eef373283afb43c5c2317757565563d402958197198ef69a13ced916"
/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam reinstall alcobar.0.3;\
\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-10\\\"\"; then\
\n echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
\n fi;\
\n test \"$pkg\" != 'alcobar.0.3' && partial_fails=\"$partial_fails $pkg\";\
\n done;\
\n test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
\n exit 1"))
alcobar.0.3 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 14 packages
- install afl-persistent 1.4 [required by alcobar]
- install alcobar 0.3 (pinned)
- install alcotest 1.9.1 [required by alcobar]
- install astring 0.8.5 [required by alcotest]
- install cmdliner 2.1.0 [required by alcobar]
- install dune 3.21.1 [required by alcobar]
- install fmt 0.11.0 [required by alcotest]
- install ocaml-syntax-shims 1.0.0 [required by alcotest]
- install ocamlbuild 0.16.1 [required by fmt, astring, uutf]
- install ocamlfind 1.9.8 [required by fmt, astring, uutf]
- install re 1.14.0 [required by alcotest]
- install stdlib-shims 0.3.0 [required by alcotest]
- install topkg 1.1.1 [required by fmt, astring, uutf]
- install uutf 1.0.4 [required by alcotest]
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved afl-persistent.1.4 (cached)
-> retrieved alcobar.0.3 (cached)
-> retrieved alcotest.1.9.1 (cached)
-> retrieved astring.0.8.5 (cached)
-> retrieved cmdliner.2.1.0 (cached)
-> retrieved dune.3.21.1 (cached)
-> retrieved fmt.0.11.0 (cached)
-> retrieved ocaml-syntax-shims.1.0.0 (cached)
-> retrieved ocamlbuild.0.16.1 (cached)
-> retrieved ocamlfind.1.9.8 (cached)
-> retrieved re.1.14.0 (cached)
-> retrieved stdlib-shims.0.3.0 (cached)
-> retrieved topkg.1.1.1 (cached)
-> retrieved uutf.1.0.4 (cached)
-> installed cmdliner.2.1.0
-> installed ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed uutf.1.0.4
-> installed fmt.0.11.0
-> installed astring.0.8.5
-> installed dune.3.21.1
-> installed afl-persistent.1.4
-> installed stdlib-shims.0.3.0
-> installed ocaml-syntax-shims.1.0.0
-> installed re.1.14.0
-> installed alcotest.1.9.1
-> installed alcobar.0.3
Done.
<><> afl-persistent.1.4 installed successfully ><><><><><><><><><><><><><><><><>
=> afl-persistent is installed, but since the current OCaml compiler does
not enable AFL instrumentation by default, most packages will not be
instrumented and fuzzing with afl-fuzz may not be effective.
To globally enable AFL instrumentation, create an OCaml switch like:
opam switch create 5.4.0+afl ocaml-variants.5.4.0+options ocaml-option-afl
# To update the current shell environment, run: eval $(opam env)
2026-03-18 04:30.30 ---> saved as "15a10e74e75ee971be9527d96779dd1a2cbb26379025f23e4c685e1e0d51584b"
Job succeeded
2026-03-18 04:30.34: Job succeeded