(for PR #21122)

2022-04-07 12:54.47: New job: build mirage-block-ccm.1.0.2, using opam 2.1
                              from https://github.com/ocaml/opam-repository.git#refs/pull/21122/head (854464dcb0d584c0d9a7b6cbdf5b33d0d390d5b6)
                              on debian-11-ocaml-4.04/amd64

To reproduce locally:

git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/21122/head" && git reset --hard 854464dc
git fetch origin master
git merge 4d72a962379797389a56c9429260f356d6033ac7
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-11-ocaml-4.04@sha256:2cdce4ab3435e0aa4fb8aa29805163ce904fd942664c83dc937c61755e387b9d
USER 1000:1000
WORKDIR /home/opam
RUN for pkg in $(opam pin list --short); do opam pin remove "$pkg"; done
RUN opam repository remove -a multicore || true
RUN sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam
RUN opam init --reinit -ni
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMSOLVERTIMEOUT="500"
ENV OPAMPRECISETRACKING="1"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam pin add -k version -yn mirage-block-ccm.1.0.2 1.0.2
RUN opam update --depexts
RUN opam remove mirage-block-ccm.1.0.2 && opam install --deps-only mirage-block-ccm.1.0.2 && opam install -v mirage-block-ccm.1.0.2; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-11\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    done; \
    exit 1

END-OF-DOCKERFILE
docker build -f ../Dockerfile .

2022-04-07 12:54.47: Using cache hint "ocaml/opam:debian-11-ocaml-4.04@sha256:2cdce4ab3435e0aa4fb8aa29805163ce904fd942664c83dc937c61755e387b9d-mirage-block-ccm.1.0.2-854464dcb0d584c0d9a7b6cbdf5b33d0d390d5b6"
2022-04-07 12:54.47: Using OBuilder spec:
((from ocaml/opam:debian-11-ocaml-4.04@sha256:2cdce4ab3435e0aa4fb8aa29805163ce904fd942664c83dc937c61755e387b9d)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "for pkg in $(opam pin list --short); do opam pin remove \"$pkg\"; done"))
 (run (shell "opam repository remove -a multicore || true"))
 (run (shell "sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam"))
 (run (shell "opam init --reinit --config .opamrc-sandbox -ni"))
 (env OPAMDOWNLOADJOBS 1)
 (env OPAMERRLOGLEN 0)
 (env OPAMSOLVERTIMEOUT 500)
 (env OPAMPRECISETRACKING 1)
 (run (shell "rm -rf opam-repository/"))
 (copy (src .) (dst opam-repository/))
 (run (shell "opam repository set-url --strict default opam-repository/"))
 (run (shell "opam pin add -k version -yn mirage-block-ccm.1.0.2 1.0.2"))
 (run (network host)
      (shell "opam update --depexts"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam remove mirage-block-ccm.1.0.2 && opam install --deps-only mirage-block-ccm.1.0.2 && opam install -v mirage-block-ccm.1.0.2;\
             \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        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-11\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n        done;\
             \n        exit 1"))
)

2022-04-07 12:54.47: Waiting for resource in pool OCluster
2022-04-07 13:17.28: Waiting for worker...
2022-04-07 13:20.05: Got resource from pool OCluster
Building on laodoke.ocamllabs.io
All commits already cached
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Updating files: 100% (25408/25408), done.
HEAD is now at 4d72a96237 Merge pull request #21082 from zoggy/opam-publish-chamo.3.0
Merge made by the 'recursive' strategy.
 .../mirage-block-ccm/mirage-block-ccm.1.0.2/opam   | 51 ++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 packages/mirage-block-ccm/mirage-block-ccm.1.0.2/opam

(from ocaml/opam:debian-11-ocaml-4.04@sha256:2cdce4ab3435e0aa4fb8aa29805163ce904fd942664c83dc937c61755e387b9d)
2022-04-07 13:20.11 ---> using "fbd9bc263c93210e1fde33f85b124bdc9bb847af99d7aa3a482084513b39fac9" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "for pkg in $(opam pin list --short); do opam pin remove \"$pkg\"; done"))
Ok, ocaml-base-compiler is no longer pinned to https://github.com/ocaml/ocaml/archive/4.04.2.tar.gz (version 4.04.2)
No package build needed.
Nothing to do.
# Run eval $(opam env) to update the current shell environment
2022-04-07 13:20.11 ---> using "8e7c86f730f0c8fd58be5fd6ef545b29a0dac3b11b7990644713dada370d016d" from cache

/home/opam: (run (shell "opam repository remove -a multicore || true"))
[WARNING] No configured repositories by these names found: multicore
2022-04-07 13:20.11 ---> using "beec92bfd2867936fb84f7496106bacc6aaaa05f9aad07da53c1f04b2db0d896" from cache

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam"))
2022-04-07 13:20.11 ---> using "fb97bdf788a4e07554448d52ac99d732fdfe741da7d16c4c8d106429292340e6" from cache

/home/opam: (run (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 development version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.1, 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] synchronised from file:///home/opam/opam-repository
2022-04-07 13:20.11 ---> using "f14d4c219e0ef8a361197836e10bcb52643f0b41cffb0b3f403f9716335e1102" from cache

/home/opam: (env OPAMDOWNLOADJOBS 1)

/home/opam: (env OPAMERRLOGLEN 0)

/home/opam: (env OPAMSOLVERTIMEOUT 500)

/home/opam: (env OPAMPRECISETRACKING 1)

/home/opam: (run (shell "rm -rf opam-repository/"))
2022-04-07 13:20.11 ---> using "ee86576aa6f6746ed435f99c0d12549d5b76eeae577ebfd7abff935f88fb9866" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2022-04-07 13:20.32 ---> saved as "83f54e0e9946dd56c654df382124895450e7d1ba35e8f778c81a7bccea56700e"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2022-04-07 13:21.00 ---> saved as "285118b9add5bc051d411bf8124cd9aad0963ccbf2ab11959fae5fdb578e5dfe"

/home/opam: (run (shell "opam pin add -k version -yn mirage-block-ccm.1.0.2 1.0.2"))
mirage-block-ccm is now pinned to version 1.0.2
2022-04-07 13:21.02 ---> saved as "5af64abf29b6e1ff64ea2ed764090203c769aa6e3c98a0db0c64660356ac4211"

/home/opam: (run (network host)
                 (shell "opam update --depexts"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian bullseye InRelease
- Get:2 http://security.debian.org/debian-security bullseye-security InRelease [44.1 kB]
- Get:3 http://deb.debian.org/debian bullseye-updates InRelease [39.4 kB]
- Get:4 http://security.debian.org/debian-security bullseye-security/main amd64 Packages [124 kB]
- Fetched 207 kB in 0s (447 kB/s)
- Reading package lists...
- 
2022-04-07 13:21.08 ---> saved as "c3bdbdc336030be9834193895b431de604312cc727750b112c5612082a8c1f71"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam remove mirage-block-ccm.1.0.2 && opam install --deps-only mirage-block-ccm.1.0.2 && opam install -v mirage-block-ccm.1.0.2;\
                        \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        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-11\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n        done;\
                        \n        exit 1"))
Nothing to do.
[NOTE] mirage-block-ccm.1.0.2 is not installed.

[ERROR] Package conflict!
  * No agreement on the version of ocaml:
    - (invariant) -> ocaml-base-compiler = 4.04.2 -> ocaml = 4.04.2
    - mirage-block-ccm >= 1.0.2 -> ocaml >= 4.08.0
    You can temporarily relax the switch invariant with `--update-invariant'

No solution found, exiting
"/bin/bash" "-c"
"opam remove mirage-block-ccm.1.0.2 && opam install --deps-only mirage-block-ccm.1.0.2 && opam install -v mirage-block-ccm.1.0.2;
        res=$?;
        test "$res" != 31 && exit "$res";
        export OPAMCLI=2.0;
        build_dir=$(opam var prefix)/.opam-switch/build;
        failed=$(ls "$build_dir");
        for pkg in $failed; do
          if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-11\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
        done;
        exit 1" failed with exit status 20
2022-04-07 13:21.43: Job failed: Failed: Build failed
2022-04-07 13:21.43: Log analysis:
2022-04-07 13:21.43: >>> 
[ERROR] Package conflict!
 (score = 100)
2022-04-07 13:21.43: [SKIP] Package not available