(for PR #28619)

2025-09-30 08:04.00: New job: build MlFront_Cli.2.4.2.21, lower-bounds, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/28619/head (f053538f79a18e4c6a4064eb8f48277b038e350a)
                              on debian-13-ocaml-5.1/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/28619/head" && git reset --hard f053538f
git fetch origin master
git merge --no-edit dfe27d924d3f2d9d3045aa994e54a6172a669ecb
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.1@sha256:757c5fc67757b0ed0f2b5b4414304e93e4f0600c89571de735702aef6b5aeb8b
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn MlFront_Cli.2.4.2.21 2.4.2.21
RUN opam reinstall MlFront_Cli.2.4.2.21; \
    res=$?; \
    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 "$pkg" != 'MlFront_Cli.2.4.2.21' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
ENV OPAMCRITERIA="+removed,+count[version-lag,solution]"
ENV OPAMFIXUPCRITERIA="+removed,+count[version-lag,solution]"
ENV OPAMUPGRADECRITERIA="+removed,+count[version-lag,solution]"
RUN opam reinstall MlFront_Cli.2.4.2.21; \
    res=$?; \
    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 "$pkg" != 'MlFront_Cli.2.4.2.21' && partial_fails="$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 .

2025-09-30 08:04.00: Using cache hint "ocaml/opam:debian-13-ocaml-5.1@sha256:757c5fc67757b0ed0f2b5b4414304e93e4f0600c89571de735702aef6b5aeb8b-MlFront_Cli.2.4.2.21-f053538f79a18e4c6a4064eb8f48277b038e350a"
2025-09-30 08:04.00: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.1@sha256:757c5fc67757b0ed0f2b5b4414304e93e4f0600c89571de735702aef6b5aeb8b)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-dev /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 MlFront_Cli.2.4.2.21 2.4.2.21"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall MlFront_Cli.2.4.2.21;\
             \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 \"$pkg\" != 'MlFront_Cli.2.4.2.21' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (env OPAMCRITERIA +removed,+count[version-lag,solution])
 (env OPAMFIXUPCRITERIA +removed,+count[version-lag,solution])
 (env OPAMUPGRADECRITERIA +removed,+count[version-lag,solution])
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall MlFront_Cli.2.4.2.21;\
             \n        res=$?;\
             \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 \"$pkg\" != 'MlFront_Cli.2.4.2.21' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-09-30 08:04.00: Waiting for resource in pool OCluster
2025-09-30 08:04.02: Waiting for worker…
2025-09-30 08:05.46: Got resource from pool OCluster
Building on clete
All commits already cached
HEAD is now at dfe27d924d Merge pull request #28613 from kit-ty-kate/opam-2.4-stable-patch
Updating dfe27d924d..f053538f79
Fast-forward
 packages/MlFront_Cache/MlFront_Cache.2.4.2.21/opam | 46 ++++++++++++++++++++
 packages/MlFront_Cli/MlFront_Cli.2.4.2.21/opam     | 37 ++++++++++++++++
 .../MlFront_Codept/MlFront_Codept.2.4.2.21/opam    | 50 ++++++++++++++++++++++
 .../MlFront_Config/MlFront_Config.2.4.2.21/opam    | 41 ++++++++++++++++++
 packages/MlFront_Core/MlFront_Core.2.4.2.21/opam   | 42 ++++++++++++++++++
 .../MlFront_Errors/MlFront_Errors.2.4.2.21/opam    | 41 ++++++++++++++++++
 packages/MlFront_Exec/MlFront_Exec.2.4.2.21/opam   | 50 ++++++++++++++++++++++
 packages/MlFront_Logs/MlFront_Logs.2.4.2.21/opam   | 41 ++++++++++++++++++
 packages/MlFront_Manip/MlFront_Manip.2.4.2.21/opam | 39 +++++++++++++++++
 .../MlFront_Signify/MlFront_Signify.2.4.2.21/opam  | 40 +++++++++++++++++
 packages/MlFront_Thunk/MlFront_Thunk.2.4.2.21/opam | 44 +++++++++++++++++++
 packages/MlFront_Tools/MlFront_Tools.2.4.2.21/opam | 49 +++++++++++++++++++++
 .../MlFront_ZipFile/MlFront_ZipFile.2.4.2.21/opam  | 40 +++++++++++++++++
 13 files changed, 560 insertions(+)
 create mode 100644 packages/MlFront_Cache/MlFront_Cache.2.4.2.21/opam
 create mode 100644 packages/MlFront_Cli/MlFront_Cli.2.4.2.21/opam
 create mode 100644 packages/MlFront_Codept/MlFront_Codept.2.4.2.21/opam
 create mode 100644 packages/MlFront_Config/MlFront_Config.2.4.2.21/opam
 create mode 100644 packages/MlFront_Core/MlFront_Core.2.4.2.21/opam
 create mode 100644 packages/MlFront_Errors/MlFront_Errors.2.4.2.21/opam
 create mode 100644 packages/MlFront_Exec/MlFront_Exec.2.4.2.21/opam
 create mode 100644 packages/MlFront_Logs/MlFront_Logs.2.4.2.21/opam
 create mode 100644 packages/MlFront_Manip/MlFront_Manip.2.4.2.21/opam
 create mode 100644 packages/MlFront_Signify/MlFront_Signify.2.4.2.21/opam
 create mode 100644 packages/MlFront_Thunk/MlFront_Thunk.2.4.2.21/opam
 create mode 100644 packages/MlFront_Tools/MlFront_Tools.2.4.2.21/opam
 create mode 100644 packages/MlFront_ZipFile/MlFront_ZipFile.2.4.2.21/opam

(from ocaml/opam:debian-13-ocaml-5.1@sha256:757c5fc67757b0ed0f2b5b4414304e93e4f0600c89571de735702aef6b5aeb8b)
2025-09-30 08:05.58 ---> using "d36d8eef9b82e0c3cc87084377299111873b438c9c2551fa4004116e26feb223" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-09-30 08:05.58 ---> using "78a12832b3001e46b0f0de21e05149f605ca81f24adc8de8d006a6cc7524d669" 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 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
2025-09-30 08:06.06 ---> saved as "e151d7e6388c88f6b2cd1fb6dc0be772fd81e6d7ca5bd92648aeee9642e36e3f"

/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=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       5.1
# invariant            ["ocaml-base-compiler" {= "5.1.1"}]
# compiler-packages    ocaml-base-compiler.5.1.1, ocaml-options-vanilla.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.1/lib/ocaml/stublibs:/home/opam/.opam/5.1/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.1.1
2025-09-30 08:06.07 ---> saved as "3d77ae5f41b73239ce563524186b34f9e1aae1e4e81cbb87ae3cd746e220d1dd"

/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/"))
2025-09-30 08:06.21 ---> saved as "ff82f29728a556baa489b4175490a3319d876dac8904857b258c7edf32e6576f"

/home/opam: (copy (src .) (dst opam-repository/))
2025-09-30 08:06.30 ---> saved as "a20573af0efbe388645457c9628871786681318025a37a1f40e28ba4d145e7d0"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-09-30 08:06.48 ---> saved as "a7162a3ba4d60b1a082575f6d60a13b586eef7ca5021506557e7610618590848"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/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]
- Get:4 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [47.7 kB]
- Fetched 138 kB in 2s (77.3 kB/s)
- Reading package lists...
- 
2025-09-30 08:06.51 ---> saved as "b034465cbd8ef040f790988c9d9f3d4af75e7fa2c4554d19a8025bb0e99403e5"

/home/opam: (run (shell "opam pin add -k version -yn MlFront_Cli.2.4.2.21 2.4.2.21"))
MlFront_Cli is now pinned to version 2.4.2.21
2025-09-30 08:06.52 ---> saved as "99fb0a1e01c51b160164084db8a7a8c9b5d64261400e3c650393cce4074c8c25"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall MlFront_Cli.2.4.2.21;\
                        \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 \"$pkg\" != 'MlFront_Cli.2.4.2.21' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
MlFront_Cli.2.4.2.21 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 2 packages
  - install dune        3.20.2            [required by MlFront_Cli]
  - install MlFront_Cli 2.4.2.21 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved dune.3.20.2  (cached)
-> retrieved MlFront_Cli.2.4.2.21  (cached)
-> installed dune.3.20.2
-> installed MlFront_Cli.2.4.2.21
Done.
# To update the current shell environment, run: eval $(opam env)
2025-09-30 08:07.24 ---> saved as "32fd2409ddeb7b02c2748e0ed02e5c7d1b340592043c76f0a2a42503ca98c35b"

/home/opam: (env OPAMCRITERIA +removed,+count[version-lag,solution])

/home/opam: (env OPAMFIXUPCRITERIA +removed,+count[version-lag,solution])

/home/opam: (env OPAMUPGRADECRITERIA +removed,+count[version-lag,solution])

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall MlFront_Cli.2.4.2.21;\
                        \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 \"$pkg\" != 'MlFront_Cli.2.4.2.21' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
The following actions will be performed:
=== downgrade 1 package
  - downgrade dune        3.20.2 to 3.18.2  [required by MlFront_Cli]
=== recompile 1 package
  - recompile MlFront_Cli 2.4.2.21 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved dune.3.18.2  (cached)
-> removed   MlFront_Cli.2.4.2.21
-> removed   dune.3.20.2
-> installed dune.3.18.2
-> installed MlFront_Cli.2.4.2.21
Done.
# To update the current shell environment, run: eval $(opam env)
2025-09-30 08:08.00 ---> saved as "6a60d6cd56ed19a2717d4020fce572af6a30bafc145ead9e56219b9ab2ef79e7"
Job succeeded
2025-09-30 08:08.09: Job succeeded