(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 freebsd-14.2-ocaml-5.3/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/27920/head" && git reset --hard 67423ee8
git fetch origin master
git merge --no-edit 428327733193cda496cf0f6a6e47f2172aab591e
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM freebsd-14.2-ocaml-5.3
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/local/bin/opam-2.3 /usr/local/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ocaml-fsrs.0.1.0-alpha3 0.1.0-alpha3
RUN opam reinstall ocaml-fsrs.0.1.0-alpha3; \
    res=$?; \
    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 "\"freebsd-14.2\""; 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 "freebsd-14.2-ocaml-5.3-ocaml-fsrs.0.1.0-alpha3-67423ee84b72a0a7e34b6e84fbb039f220f355cd"
2025-05-24 17:48.54: Using OBuilder spec:
((from freebsd-14.2-ocaml-5.3)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/local/bin/opam-2.3 /usr/local/bin/opam"))
 (run (network host)
      (shell "opam init --reinit -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 \"\\\"freebsd-14.2\\\"\"; 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 rosemary
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 freebsd-14.2-ocaml-5.3)
2025-05-24 17:51.17 ---> using "47c9a03b962be450225081ed69acde1f5c6dadb6d1106d9b1a8b4fd61c2defa6" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/local/bin/opam-2.3 /usr/local/bin/opam"))
2025-05-24 17:51.20 ---> using "c100fcff2c574e3682914186172801ecf5aff24e34775f062038baff6ab92d09" from cache

/home/opam: (run (network host)
                 (shell "opam init --reinit -ni"))
No configuration file found, using 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 2.1 to version 2.2, which can't be reverted.
You may want to back it up before going further.

Continue? [y/n] y
[NOTE] The 'jobs' option was reset, its value was 1 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:
           opam option jobs=1 --global
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes from git+file:///home/opam/opam-repository
2025-05-24 17:51.22 ---> using "795fd05166930ba4ba9cad58e2d3788b4915a835784217393e74e9f87e2e9159" 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
# self-upgrade         no
# system               arch=x86_64 os=freebsd os-distribution=freebsd os-version=1402000
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 39
# repositories         1 (version-controlled)
# pinned               0
# current-switch       5.3.0
# invariant            ["ocaml-base-compiler" {= "5.3.0"} | "ocaml-system" {= "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/5.3.0/lib/ocaml/stublibs:/home/opam/.opam/5.3.0/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.3.0
2025-05-24 17:51.24 ---> using "ff597a628b140c0da12c4190032d4f8ce25cc29eb9a812ed6ff0e3d186fb8562" 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 17:51.25 ---> using "57e3f7248fa0ab3baaa290ad1e0a00da01320b9679720df35c01763d06b21aa3" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-05-24 17:54.12 ---> saved as "98efe2f9748b7eeb23e2a165e4bffa70da684320f6d145d351ab66ca02917bc2"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-05-24 17:54.46 ---> saved as "a3a921c6566ad68231da03a611c4a4e909c6d6fe547afe7e42a72831c407967a"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
[WARNING] Unknown update command for bsd, skipping system update
2025-05-24 17:54.49 ---> saved as "aa2fedc5609dcb9cd17d3b15996fc6a081191872328bd0cf7cfc515551f56bf2"

/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 17:54.54 ---> saved as "cf4009a24c9b9e657bf59be82066265a79a648408d6a1a761caa01ab249018b8"

/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 \"\\\"freebsd-14.2\\\"\"; 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
  ∗ angstrom                0.16.1                [required by timedesc]
  ∗ base                    v0.17.2               [required by ocaml-fsrs]
  ∗ bigstringaf             0.10.0                [required by angstrom]
  ∗ csexp                   1.5.2                 [required by dune-configurator]
  ∗ dune                    3.19.0                [required by ocaml-fsrs]
  ∗ dune-configurator       3.19.0                [required by base]
  ∗ ocaml-fsrs              0.1.0-alpha3 (pinned)
  ∗ ocaml-syntax-shims      1.0.0                 [required by angstrom]
  ∗ ocaml_intrinsics_kernel v0.17.1               [required by base]
  ∗ ocamlbuild              0.16.1                [required by ptime]
  ∗ ocamlfind               1.9.8                 [required by ptime]
  ∗ ptime                   1.2.0                 [required by timedesc]
  ∗ result                  1.5                   [required by timedesc]
  ∗ seq                     base                  [required by timedesc]
  ∗ sexplib0                v0.17.0               [required by base]
  ∗ timedesc                3.1.0                 [required by ocaml-fsrs]
  ∗ timedesc-tzdb           3.1.0                 [required by timedesc]
  ∗ timedesc-tzlocal        3.1.0                 [required by timedesc]
  ∗ 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 result.1.5
∗ installed csexp.1.5.2
∗ installed sexplib0.v0.17.0
∗ installed timedesc-tzdb.3.1.0
∗ installed timedesc-tzlocal.3.1.0
∗ installed ocaml_intrinsics_kernel.v0.17.1
∗ installed ocaml-syntax-shims.1.0.0
∗ 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
└─ 

The former state can be restored with:
    /usr/local/bin/opam switch import "/home/opam/.opam/5.3.0/.opam-switch/backup/state-20250524175457.export"
jail: /usr/bin/su -l opam -c cd '/home/opam' && env OPAM_REPO_CI='true' CI='true' OPAMPRECISETRACKING='1' OPAMERRLOGLEN='0' OPAMDOWNLOADJOBS='1' '/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 "\"freebsd-14.2\""; 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: ${partial_fails}";
        exit 1': failed
"jail" "-c" "name=obuilder_89637_28453" "mount.fstab=/tmp/obuilder-jail-eef7e7/fstab" "mount.devfs" "path=/obuilder/result/b1c76da14cfd04d2ebc6042d920ba83075b8c472a10e23b23ddf055b1ad0efaa/rootfs" "host=inherit" "ip6=inherit" "ip4=inherit" "command=/usr/bin/su" "-l" "opam" "-c" "cd '/home/opam' && env OPAM_REPO_CI='true' CI='true' OPAMPRECISETRACKING='1' OPAMERRLOGLEN='0' OPAMDOWNLOADJOBS='1' '/usr/bin/env' 'bash' '-c' 'opam reinstall ocaml-fsrs.0.1.0-alpha3;
        res=$?;
        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 "\"freebsd-14.2\""; 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 1
2025-05-24 17:56.49: Job failed: Failed: Build failed
2025-05-24 17:56.49: Log analysis:
2025-05-24 17:56.49: >>> 
[ERROR] Failed to get sources of ocaml-fsrs.0.1.0-alpha3: Bad checksum
 (score = 25)
2025-05-24 17:56.49: Failed to get sources of ocaml-fsrs.0.1.0-alpha3: Bad checksum