(for PR #27920)

2025-10-07 16:38.40: New job: build ocaml-fsrs.0.1.0-alpha3, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/27920/head (67423ee84b72a0a7e34b6e84fbb039f220f355cd)
                              on freebsd-14.3-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/27920/head" && git reset --hard 67423ee8
git fetch origin master
git merge --no-edit 98696b94e2793b6ee486d4832be28acfab810810
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM freebsd-14.3-ocaml-4.14
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/local/bin/opam-dev /usr/local/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ocaml-fsrs.0.1.0-alpha3 0.1.0-alpha3
RUN opam reinstall ocaml-fsrs.0.1.0-alpha3; \
    res=$?; \
    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-14.3\""; 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 .

2025-10-07 16:38.40: Using cache hint "freebsd-14.3-ocaml-4.14-ocaml-fsrs.0.1.0-alpha3-67423ee84b72a0a7e34b6e84fbb039f220f355cd"
2025-10-07 16:38.40: Using OBuilder spec:
((from freebsd-14.3-ocaml-4.14)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/local/bin/opam-dev /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-14.3\\\"\"; 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"))
)

2025-10-07 16:38.40: Connecting to build cluster…
2025-10-07 16:38.40: Waiting for resource in pool OCluster
2025-10-07 16:52.23: Waiting for worker…
2025-10-07 18:12.17: Got resource from pool OCluster
Building on rosemary
All commits already cached
Updating files: 100% (18448/18448), done.
HEAD is now at 98696b94e2 Merge pull request #28659 from kit-ty-kate/opam-publish-camlp4.5.4
Merge made by the 'ort' strategy.
 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-14.3-ocaml-4.14)
2025-10-07 18:10.37 ---> using "7e5247e9853d1c2fb95ef9ffdfdb895ef70516f48155f08a9b10db936cb8c6c6" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/local/bin/opam-dev /usr/local/bin/opam"))
2025-10-07 18:10.37 ---> using "96677dfb826139d1d475397206e27cf90befca1f152a356651021947800ddc31" 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
2025-10-07 18:10.38 ---> using "b7155bb4d9f0dfa9c383663e6516f5803e4c2ab438da3ab4eeccd3740ad9833f" 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         2.4.1
# self-upgrade         no
# system               arch=x86_64 os=freebsd os-distribution=freebsd os-version=1403000
# 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       4.14.2
# invariant            ["ocaml-base-compiler" {= "4.14.2"} | "ocaml-system" {= "4.14.2"}]
# compiler-packages    ocaml-base-compiler.4.14.2, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.14.2/lib/ocaml/stublibs:/home/opam/.opam/4.14.2/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.14.2
2025-10-07 18:10.38 ---> using "b0effd5cf5c473eb9f84aee26e7221d934f437c21ca61c365f825913ca23d38c" 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/"))
2025-10-07 18:10.38 ---> using "2a5689f2ff4b86af979d0390fa2dfee1e6e92b3f4e476fbe79b59c6ee634de82" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-10-07 18:10.43 ---> saved as "1b1df5ff49dcf10a811d94cbd7e9163811674cc58f410f2a6ce09765e7eadbb5"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-10-07 18:11.07 ---> saved as "cef7c76ca4fe131300ec7470ab2e7930868034fcdc68c0fc7e131a09aea16d94"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
[WARNING] Unknown update command for bsd, skipping system update
2025-10-07 18:11.07 ---> saved as "a530ce6e001ba8f768486681e82c09e7ffb277953fb7cd5296cd6ac066197b8e"

/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
2025-10-07 18:11.09 ---> saved as "29087cc0a78e96872e8f13a1a3f51185d031a4fff160ebfd9c6e2db61fed61e9"

/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-14.3\\\"\"; 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 18 packages
  ∗ angstrom           0.16.1                [required by timedesc]
  ∗ base               v0.16.4               [required by ocaml-fsrs]
  ∗ bigstringaf        0.10.0                [required by angstrom]
  ∗ csexp              1.5.2                 [required by dune-configurator]
  ∗ dune               3.20.2                [required by ocaml-fsrs]
  ∗ dune-configurator  3.20.2                [required by base]
  ∗ ocaml-fsrs         0.1.0-alpha3 (pinned)
  ∗ ocaml-syntax-shims 1.0.0                 [required by angstrom]
  ∗ 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           v0.16.0               [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              1.1.0                 [required by ptime]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
⬇ retrieved angstrom.0.16.1  (https://github.com/inhabitedtype/angstrom/archive/0.16.1.tar.gz)
⬇ retrieved base.v0.16.4  (https://github.com/janestreet/base/archive/refs/tags/v0.16.4.tar.gz)
⬇ retrieved bigstringaf.0.10.0  (https://github.com/inhabitedtype/bigstringaf/archive/0.10.0.tar.gz)
⬇ retrieved csexp.1.5.2  (cached)
⬇ retrieved dune.3.20.2, dune-configurator.3.20.2  (cached)
[ERROR] Failed to get sources of ocaml-fsrs.0.1.0-alpha3: Bad checksum
⬇ retrieved ocaml-syntax-shims.1.0.0  (cached)
⬇ retrieved ocamlbuild.0.16.1  (cached)
⬇ retrieved ocamlfind.1.9.8  (cached)
⬇ retrieved ptime.1.2.0  (https://erratique.ch/software/ptime/releases/ptime-1.2.0.tbz)
⬇ retrieved result.1.5  (cached)
⬇ retrieved seq.base  (2 extra sources)
⬇ retrieved seq.base  (2 extra sources)
∗ installed seq.base
⬇ retrieved sexplib0.v0.16.0  (https://ocaml.janestreet.com/ocaml-core/v0.16/files/sexplib0-v0.16.0.tar.gz)
⬇ retrieved timedesc.3.1.0, timedesc-tzdb.3.1.0, timedesc-tzlocal.3.1.0  (https://github.com/daypack-dev/timere/releases/download/timedesc-3.1.0/timedesc-3.1.0.tar.gz)
⬇ retrieved topkg.1.1.0  (cached)
∗ installed ocamlfind.1.9.8
∗ installed ocamlbuild.0.16.1
∗ installed topkg.1.1.0
∗ installed ptime.1.2.0
∗ installed dune.3.20.2
∗ installed result.1.5
∗ installed csexp.1.5.2
∗ installed sexplib0.v0.16.0
∗ installed timedesc-tzdb.3.1.0
∗ installed timedesc-tzlocal.3.1.0
∗ installed ocaml-syntax-shims.1.0.0
∗ installed dune-configurator.3.20.2
∗ installed bigstringaf.0.10.0
∗ installed angstrom.0.16.1
∗ installed timedesc.3.1.0
∗ installed base.v0.16.4

#=== 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               v0.16.4
│ ∗ install bigstringaf        0.10.0
│ ∗ install csexp              1.5.2
│ ∗ install dune               3.20.2
│ ∗ install dune-configurator  3.20.2
│ ∗ install ocaml-syntax-shims 1.0.0
│ ∗ install ocamlbuild         0.16.1
│ ∗ install ocamlfind          1.9.8
│ ∗ install ptime              1.2.0
│ ∗ install result             1.5
│ ∗ install seq                base
│ ∗ install sexplib0           v0.16.0
│ ∗ install timedesc           3.1.0
│ ∗ install timedesc-tzdb      3.1.0
│ ∗ install timedesc-tzlocal   3.1.0
│ ∗ install topkg              1.1.0
└─ 

The former state can be restored with:
    /usr/local/bin/opam switch import "/home/opam/.opam/4.14.2/.opam-switch/backup/state-20251007181110.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-14.3\""; 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: ${partial_fails}";
        exit 1': failed
"jail" "-c" "name=obuilder_73090_1644" "mount.fstab=/tmp/obuilder-jail-683e1a/fstab" "mount.devfs" "path=/obuilder/result/9b5f053b63499e700ee77e28fac4ddeae0715e8e934e9f8e4ef766e9e2f2c621/rootfs" "host=inherit" "ip6=inherit" "ip4=inherit" "command=/usr/bin/su" "-l" "opam" "-c" "cd '/home/opam' && env OPAM_REPO_CI='true' CI='true' OPAMPRECISETRACKING='1' OPAMERRLOGLEN='0' OPAMDOWNLOADJOBS='1' '/usr/bin/env' 'bash' '-c' 'opam reinstall ocaml-fsrs.0.1.0-alpha3;
        res=$?;
        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-14.3\""; 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
2025-10-07 18:14.05: Job failed: Failed: Build failed
2025-10-07 18:14.05: Log analysis:
2025-10-07 18:14.05: >>> 
[ERROR] Failed to get sources of ocaml-fsrs.0.1.0-alpha3: Bad checksum
 (score = 25)
2025-10-07 18:14.05: Failed to get sources of ocaml-fsrs.0.1.0-alpha3: Bad checksum