2026-01-26 12:27.45: New job: build miou.0.5.1, using opam 2.0
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29284/head (6086bf8ff951fe65de5474136df95b3d9959a7ae)
                              on debian-13-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29284/head" && git reset --hard 6086bf8f
git fetch origin master
git merge --no-edit f9f7db30fd6e805d48b947df138d463a5433f4d1
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14@sha256:b77f64f7a162903a6fb8a0d50071a7eb7a4a9bc4421699c19d2ab9050981c012
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.0 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam depext -u || true
RUN opam pin add -k version -yn miou.0.5.1 0.5.1
RUN opam depext miou.0.5.1 && opam reinstall miou.0.5.1; \
    res=$?; \
    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 "$pkg" != 'miou.0.5.1' && partial_fails="$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 .

2026-01-26 12:27.45: Using cache hint "ocaml/opam:debian-13-ocaml-4.14@sha256:b77f64f7a162903a6fb8a0d50071a7eb7a4a9bc4421699c19d2ab9050981c012-miou.0.5.1-6086bf8ff951fe65de5474136df95b3d9959a7ae"
2026-01-26 12:27.45: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14@sha256:b77f64f7a162903a6fb8a0d50071a7eb7a4a9bc4421699c19d2ab9050981c012)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.0 /usr/bin/opam"))
 (run (network host)
      (shell "opam init --reinit --config .opamrc-sandbox -ni"))
 (run (shell "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 depext -u || true"))
 (run (shell "opam pin add -k version -yn miou.0.5.1 0.5.1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam depext miou.0.5.1 && opam reinstall miou.0.5.1;\
             \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 \"$pkg\" != 'miou.0.5.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-26 12:27.45: Waiting for resource in pool OCluster
2026-01-26 12:27.45: Waiting for worker…
2026-01-26 12:30.06: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at f9f7db30fd Merge pull request #29275 from EruEri/shakuhachi-0.2.0
Updating f9f7db30fd..6086bf8ff9
Fast-forward
 packages/miou/miou.0.5.0/opam | 1 +
 packages/miou/miou.0.5.1/opam | 1 +
 2 files changed, 2 insertions(+)

(from ocaml/opam:debian-13-ocaml-4.14@sha256:b77f64f7a162903a6fb8a0d50071a7eb7a4a9bc4421699c19d2ab9050981c012)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.14@sha256:b77f64f7a162903a6fb8a0d50071a7eb7a4a9bc4421699c19d2ab9050981c012' locally
docker.io/ocaml/opam@sha256:b77f64f7a162903a6fb8a0d50071a7eb7a4a9bc4421699c19d2ab9050981c012: Pulling from ocaml/opam
32ef12fa09dd: Pulling fs layer
32ef12fa09dd: Verifying Checksum
32ef12fa09dd: Download complete
32ef12fa09dd: Pull complete
Digest: sha256:b77f64f7a162903a6fb8a0d50071a7eb7a4a9bc4421699c19d2ab9050981c012
Status: Downloaded newer image for ocaml/opam@sha256:b77f64f7a162903a6fb8a0d50071a7eb7a4a9bc4421699c19d2ab9050981c012
2026-01-26 12:40.50 ---> using "3fd264bad5105e854dbd96d70e0cfc1d39526afdd30eb5071f64946db0e5017f" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.0 /usr/bin/opam"))
2026-01-26 12:40.50 ---> saved as "70c27e564b1e5cf568062c555c0e94b415117e42d56be11c6457e8193b45ceda"

/home/opam: (run (network host)
                 (shell "opam init --reinit --config .opamrc-sandbox -ni"))
[NOTE] Will configure 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.

[WARNING] Recommended dependencies -- most packages rely on these:
  - m4

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
default (at git+file:///home/opam/opam-repository): 
    [INFO] opam 2.1 and 2.2 include many performance and security improvements over 2.0; please consider upgrading (https://opam.ocaml.org/doc/Install.html)

2026-01-26 12:41.35 ---> saved as "24904cbbbc7eacb8597a99b3e84ca485f6bf6d76dd5affbfdbfbbfce1dc0fcd6"

/home/opam: (run (shell "opam config report"))
# opam config report
# opam-version      2.0.10 (adc1e1829a2bef5b240746df80341b508290fe3b) 
# self-upgrade      no
# system            arch=x86_64 os=linux os-distribution=debian os-version=13
# solver            builtin-mccs+glpk
# install-criteria  -removed,-count[version-lag,request],-count[version-lag,changed],-changed
# upgrade-criteria  -removed,-count[version-lag,solution],-new
# jobs              71
# repositories      1 (version-controlled)
# pinned            1 (version)
# current-switch    4.14
2026-01-26 12:41.36 ---> saved as "b15d1895a9104a51ec6eec2bb4395818aaa5cf715ab8f67b2b96a61df035cc40"

/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/"))
2026-01-26 12:41.46 ---> saved as "8a9a330f504e43f89742bace8203b3fa61b4493c9cff8434f62f668a5e2e7afc"

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-26 12:41.56 ---> saved as "e8b6626fb0f3306bb147d31f49ab0f0e157a1e24f60c0a175d2c472f25cfa5f8"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
default (at file:///home/opam/opam-repository): 
    [INFO] opam 2.1 and 2.2 include many performance and security improvements over 2.0; please consider upgrading (https://opam.ocaml.org/doc/Install.html)

2026-01-26 12:42.07 ---> saved as "ab5dd10f194229dd24a09990f743d497b7de11a0b51c055ab5095cbea52f8db5"

/home/opam: (run (network host)
                 (shell "opam depext -u || true"))
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
# No extra OS packages requirements found.
# All required OS packages found.
The following command needs to be run through "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]
Fetched 90.7 kB in 0s (1265 kB/s)
Reading package lists...
# OS package update successful
2026-01-26 12:42.09 ---> saved as "ae519b067047ee7f68d77883983222a4b906d32450047e44014599245b9a1ba1"

/home/opam: (run (shell "opam pin add -k version -yn miou.0.5.1 0.5.1"))
miou is now pinned to version 0.5.1
2026-01-26 12:42.09 ---> saved as "367cf3a563dfcf4ac11c516e6a2bde1dbdb0afd61e6a0cd36a5e90f7c0ab4a84"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam depext miou.0.5.1 && opam reinstall miou.0.5.1;\
                        \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 \"$pkg\" != 'miou.0.5.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
[ERROR] No solution for miou.0.5.1: The following dependencies couldn't be met:
          - miou -> ocaml >= 5.0.0
              base of this switch (use `--unlock-base' to force)


Command failed: opam list --readonly --external '--resolve=miou.0.5.1' --color=never returned 20
"/usr/bin/env" "bash" "-c" "opam depext miou.0.5.1 && opam reinstall miou.0.5.1;
        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 "$pkg" != 'miou.0.5.1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-01-26 12:42.18: Job failed: Failed: Build failed
2026-01-26 12:42.18: Log analysis:
2026-01-26 12:42.18: >>> 
[ERROR] No solution for miou.0.5.1: The following dependencies couldn't be met:
 (score = 100)
2026-01-26 12:42.18: [SKIP] Package not available