(for PR #27920)

2025-05-24 17:48.54: New job: build ocaml-fsrs.0.1.0-alpha3, using opam 2.3
                              from https://github.com/ocaml/opam-repository.git#refs/pull/27920/head (67423ee84b72a0a7e34b6e84fbb039f220f355cd)
                              on debian-12-ocaml-5.3/ppc64le

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/27920/head" && git reset --hard 67423ee8
git fetch origin master
git merge --no-edit 428327733193cda496cf0f6a6e47f2172aab591e
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-12-ocaml-5.3@sha256:f726ce688b62359f34d5cacf9031dc405a58bf91b2e5b6bac22042bed8d28abe
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ocaml-fsrs.0.1.0-alpha3 0.1.0-alpha3
RUN opam reinstall ocaml-fsrs.0.1.0-alpha3; \
    res=$?; \
    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-12\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'ocaml-fsrs.0.1.0-alpha3' && partial_fails="$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 .

2025-05-24 17:48.54: Using cache hint "ocaml/opam:debian-12-ocaml-5.3@sha256:f726ce688b62359f34d5cacf9031dc405a58bf91b2e5b6bac22042bed8d28abe-ocaml-fsrs.0.1.0-alpha3-67423ee84b72a0a7e34b6e84fbb039f220f355cd"
2025-05-24 17:48.54: Using OBuilder spec:
((from ocaml/opam:debian-12-ocaml-5.3@sha256:f726ce688b62359f34d5cacf9031dc405a58bf91b2e5b6bac22042bed8d28abe)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.3 /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 ocaml-fsrs.0.1.0-alpha3 0.1.0-alpha3"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall ocaml-fsrs.0.1.0-alpha3;\
             \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-12\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'ocaml-fsrs.0.1.0-alpha3' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-05-24 17:48.54: Waiting for resource in pool OCluster
2025-05-24 17:48.54: Waiting for worker…
2025-05-24 17:48.54: Got resource from pool OCluster
Building on orithia.caelum.ci.dev
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Updating files: 100% (23100/23100), done.
HEAD is now at c6650bbd38 dns-cli: add dns-resolver dependency
HEAD is now at 4283277331 Merge pull request #27903 from patricoferris/patch-2
Updating 4283277331..67423ee84b
Fast-forward
 packages/ocaml-fsrs/ocaml-fsrs.0.1.0-alpha3/opam | 41 ++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 packages/ocaml-fsrs/ocaml-fsrs.0.1.0-alpha3/opam

(from ocaml/opam:debian-12-ocaml-5.3@sha256:f726ce688b62359f34d5cacf9031dc405a58bf91b2e5b6bac22042bed8d28abe)
Unable to find image 'ocaml/opam:debian-12-ocaml-5.3@sha256:f726ce688b62359f34d5cacf9031dc405a58bf91b2e5b6bac22042bed8d28abe' locally
docker.io/ocaml/opam@sha256:f726ce688b62359f34d5cacf9031dc405a58bf91b2e5b6bac22042bed8d28abe: Pulling from ocaml/opam
Digest: sha256:f726ce688b62359f34d5cacf9031dc405a58bf91b2e5b6bac22042bed8d28abe
Status: Downloaded newer image for ocaml/opam@sha256:f726ce688b62359f34d5cacf9031dc405a58bf91b2e5b6bac22042bed8d28abe
2025-05-24 17:49.00 ---> using "04b37e68f015a51374b952fede3173b74eed808544791e3b54ae7c29289cba53" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
2025-05-24 17:49.00 ---> using "991f2060ae47c81fc240a27beea2b28e44ca52bb8c483532607e88b06b273a84" 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 development 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
2025-05-24 17:49.00 ---> using "ba9fe1343de4547dc5b259299ffc67f729dcf5a9307b04ad78f53b87845de5db" 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         2.3.0 (35acd0c5abc5e66cdbd5be16ba77aa6c33a4c724)
# self-upgrade         no
# system               arch=ppc64 os=linux os-distribution=debian os-version=12
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 175
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       5.3
# invariant            ["ocaml-base-compiler" {>= "5.3.0"}]
# compiler-packages    ocaml-base-compiler.5.3.0, ocaml-compiler.5.3.0, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.3/lib/ocaml/stublibs:/home/opam/.opam/5.3/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.3.0
2025-05-24 17:49.00 ---> using "973b194fb083d5cab22bec56e3111a31f82dd55d5771ea1bbed8040ce44ebf0b" 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/"))
2025-05-24 17:49.00 ---> using "2802d57d544d43270e7b6cfb4407df6679060858b83f4e208f029d7004fb3cf8" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-05-24 17:51.43 ---> saved as "51702a06971726c62574584d0af91111a0082a53e0fa27a4ba87c7908593cd24"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-05-24 17:52.11 ---> saved as "2b612f1ad97f0a4f2d93ba15781b13a1f188ed74d535e319ede30cfd11ece179"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian bookworm InRelease [151 kB]
- Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]
- Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
- Get:4 http://deb.debian.org/debian bookworm/main ppc64el Packages [8629 kB]
- Get:5 http://deb.debian.org/debian-security bookworm-security/main ppc64el Packages [248 kB]
- Fetched 9132 kB in 2s (5518 kB/s)
- Reading package lists...
- 
2025-05-24 17:52.14 ---> saved as "e2374379f35423c438734e0f8f8d4ca143d2094b78556252f0810d144d66fa0d"

/home/opam: (run (shell "opam pin add -k version -yn ocaml-fsrs.0.1.0-alpha3 0.1.0-alpha3"))
ocaml-fsrs is now pinned to version 0.1.0-alpha3
2025-05-24 17:52.15 ---> saved as "5873c67cca7a9c4acc0afbfc88953330a02ed5ca6e89894a96322a8723a98892"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall ocaml-fsrs.0.1.0-alpha3;\
                        \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-12\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'ocaml-fsrs.0.1.0-alpha3' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
ocaml-fsrs.0.1.0-alpha3 is not installed. Install it? [y/n] y
The following actions will be performed:
=== install 19 packages
  - install angstrom                0.16.1                [required by timedesc]
  - install base                    v0.17.2               [required by ocaml-fsrs]
  - install bigstringaf             0.10.0                [required by angstrom]
  - install csexp                   1.5.2                 [required by dune-configurator]
  - install dune                    3.19.0                [required by ocaml-fsrs]
  - install dune-configurator       3.19.0                [required by base]
  - install ocaml-fsrs              0.1.0-alpha3 (pinned)
  - install ocaml-syntax-shims      1.0.0                 [required by angstrom]
  - install ocaml_intrinsics_kernel v0.17.1               [required by base]
  - install ocamlbuild              0.16.1                [required by ptime]
  - install ocamlfind               1.9.8                 [required by ptime]
  - install ptime                   1.2.0                 [required by timedesc]
  - install result                  1.5                   [required by timedesc]
  - install seq                     base                  [required by timedesc]
  - install sexplib0                v0.17.0               [required by base]
  - install timedesc                3.1.0                 [required by ocaml-fsrs]
  - install timedesc-tzdb           3.1.0                 [required by timedesc]
  - install timedesc-tzlocal        3.1.0                 [required by timedesc]
  - install topkg                   1.0.8                 [required by ptime]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved angstrom.0.16.1  (cached)
-> retrieved base.v0.17.2  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved dune.3.19.0, dune-configurator.3.19.0  (cached)
[ERROR] Failed to get sources of ocaml-fsrs.0.1.0-alpha3: Bad checksum
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
-> retrieved ocaml_intrinsics_kernel.v0.17.1  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ptime.1.2.0  (cached)
-> retrieved result.1.5  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved timedesc.3.1.0, timedesc-tzdb.3.1.0, timedesc-tzlocal.3.1.0  (cached)
-> retrieved topkg.1.0.8  (cached)
-> installed ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> installed topkg.1.0.8
-> installed ptime.1.2.0
-> installed dune.3.19.0
-> installed csexp.1.5.2
-> installed ocaml-syntax-shims.1.0.0
-> installed ocaml_intrinsics_kernel.v0.17.1
-> installed result.1.5
-> installed sexplib0.v0.17.0
-> installed timedesc-tzdb.3.1.0
-> installed timedesc-tzlocal.3.1.0
-> installed dune-configurator.3.19.0
-> installed bigstringaf.0.10.0
-> installed angstrom.0.16.1
-> installed timedesc.3.1.0
-> installed base.v0.17.2

#=== ERROR while fetching sources for ocaml-fsrs.0.1.0-alpha3 =================#
OpamSolution.Fetch_fail("https://github.com/chaosarium/ocaml-fsrs/archive/refs/tags/0.1.0-alpha3.tar.gz (Bad checksum, expected sha256=e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855)")


<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - fetch ocaml-fsrs 0.1.0-alpha3
+- 
+- The following changes have been performed
| - install angstrom                0.16.1
| - install base                    v0.17.2
| - install bigstringaf             0.10.0
| - install csexp                   1.5.2
| - install dune                    3.19.0
| - install dune-configurator       3.19.0
| - install ocaml-syntax-shims      1.0.0
| - install ocaml_intrinsics_kernel v0.17.1
| - install ocamlbuild              0.16.1
| - install ocamlfind               1.9.8
| - install ptime                   1.2.0
| - install result                  1.5
| - install seq                     base
| - install sexplib0                v0.17.0
| - install timedesc                3.1.0
| - install timedesc-tzdb           3.1.0
| - install timedesc-tzlocal        3.1.0
| - install topkg                   1.0.8
+- 
# To update the current shell environment, run: eval $(opam env)

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/5.3/.opam-switch/backup/state-20250524175216.export"
"/usr/bin/env" "bash" "-c" "opam reinstall ocaml-fsrs.0.1.0-alpha3;
        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-12\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'ocaml-fsrs.0.1.0-alpha3' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 40
2025-05-24 17:53.10: Job failed: Failed: Build failed
2025-05-24 17:53.10: Log analysis:
2025-05-24 17:53.10: >>> 
[ERROR] Failed to get sources of ocaml-fsrs.0.1.0-alpha3: Bad checksum
 (score = 25)
2025-05-24 17:53.10: Failed to get sources of ocaml-fsrs.0.1.0-alpha3: Bad checksum