(not at the head of any monitored branch or PR)
2026-04-10 17:24.11: New job: build dune-action-plugin.3.22.2, lower-bounds, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29704/head (3e0c395e7b1393a792367f8edca3654dac71e6fd)
                              on debian-13-ocaml-4.08/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29704/head" && git reset --hard 3e0c395e
git fetch origin master
git merge --no-edit 9d8ceab8e9f49f5671cf459997c8a47cf0e675ca
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.08@sha256:e0b0152627fa3b7561d7ce8a98dc3a627b0f9593223ef961a9640ecd727b0b04
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn dune-action-plugin.3.22.2 3.22.2
RUN opam reinstall dune-action-plugin.3.22.2; \
    res=$?; \
    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 "$pkg" != 'dune-action-plugin.3.22.2' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
ENV OPAMCRITERIA="+removed,+count[version-lag,solution]"
ENV OPAMFIXUPCRITERIA="+removed,+count[version-lag,solution]"
ENV OPAMUPGRADECRITERIA="+removed,+count[version-lag,solution]"
RUN opam reinstall dune-action-plugin.3.22.2; \
    res=$?; \
    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 "$pkg" != 'dune-action-plugin.3.22.2' && partial_fails="$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 .

2026-04-10 17:24.11: Using cache hint "ocaml/opam:debian-13-ocaml-4.08@sha256:e0b0152627fa3b7561d7ce8a98dc3a627b0f9593223ef961a9640ecd727b0b04-dune-action-plugin.3.22.2-3e0c395e7b1393a792367f8edca3654dac71e6fd"
2026-04-10 17:24.11: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.08@sha256:e0b0152627fa3b7561d7ce8a98dc3a627b0f9593223ef961a9640ecd727b0b04)
 (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 dune-action-plugin.3.22.2 3.22.2"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall dune-action-plugin.3.22.2;\
             \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        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 \"$pkg\" != 'dune-action-plugin.3.22.2' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (env OPAMCRITERIA +removed,+count[version-lag,solution])
 (env OPAMFIXUPCRITERIA +removed,+count[version-lag,solution])
 (env OPAMUPGRADECRITERIA +removed,+count[version-lag,solution])
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall dune-action-plugin.3.22.2;\
             \n        res=$?;\
             \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        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 \"$pkg\" != 'dune-action-plugin.3.22.2' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-04-10 17:24.11: Waiting for resource in pool OCluster
2026-04-10 17:24.20: Waiting for worker…
2026-04-10 17:24.20: Got resource from pool OCluster
Building on phoebe.caelum.ci.dev
All commits already cached
HEAD is now at 9d8ceab8e9 Merge pull request #29697 from filipeom/opam-publish-smtml.0.25.0
Updating 9d8ceab8e9..3e0c395e7b
Fast-forward
 packages/chrome-trace/chrome-trace.3.22.2/opam     | 39 +++++++++++
 .../dune-action-plugin.3.22.2/opam                 | 52 +++++++++++++++
 .../dune-action-trace.3.22.2/opam                  | 39 +++++++++++
 .../dune-build-info/dune-build-info.3.22.2/opam    | 45 +++++++++++++
 .../dune-configurator.3.22.2/opam                  | 49 ++++++++++++++
 packages/dune-glob/dune-glob.3.22.2/opam           | 42 ++++++++++++
 .../dune-private-libs.3.22.2/opam                  | 50 +++++++++++++++
 packages/dune-rpc-lwt/dune-rpc-lwt.3.22.2/opam     | 41 ++++++++++++
 packages/dune-rpc/dune-rpc.3.22.2/opam             | 44 +++++++++++++
 packages/dune-site/dune-site.3.22.2/opam           | 37 +++++++++++
 packages/dune/dune.3.22.2/opam                     | 75 ++++++++++++++++++++++
 packages/dyn/dyn.3.22.2/opam                       | 40 ++++++++++++
 packages/fs-io/fs-io.3.22.2/opam                   | 39 +++++++++++
 packages/ocamlc-loc/ocamlc-loc.3.22.2/opam         | 43 +++++++++++++
 packages/ordering/ordering.3.22.2/opam             | 38 +++++++++++
 packages/stdune/stdune.3.22.2/opam                 | 46 +++++++++++++
 packages/top-closure/top-closure.3.22.2/opam       | 38 +++++++++++
 packages/xdg/xdg.3.22.2/opam                       | 39 +++++++++++
 18 files changed, 796 insertions(+)
 create mode 100644 packages/chrome-trace/chrome-trace.3.22.2/opam
 create mode 100644 packages/dune-action-plugin/dune-action-plugin.3.22.2/opam
 create mode 100644 packages/dune-action-trace/dune-action-trace.3.22.2/opam
 create mode 100644 packages/dune-build-info/dune-build-info.3.22.2/opam
 create mode 100644 packages/dune-configurator/dune-configurator.3.22.2/opam
 create mode 100644 packages/dune-glob/dune-glob.3.22.2/opam
 create mode 100644 packages/dune-private-libs/dune-private-libs.3.22.2/opam
 create mode 100644 packages/dune-rpc-lwt/dune-rpc-lwt.3.22.2/opam
 create mode 100644 packages/dune-rpc/dune-rpc.3.22.2/opam
 create mode 100644 packages/dune-site/dune-site.3.22.2/opam
 create mode 100644 packages/dune/dune.3.22.2/opam
 create mode 100644 packages/dyn/dyn.3.22.2/opam
 create mode 100644 packages/fs-io/fs-io.3.22.2/opam
 create mode 100644 packages/ocamlc-loc/ocamlc-loc.3.22.2/opam
 create mode 100644 packages/ordering/ordering.3.22.2/opam
 create mode 100644 packages/stdune/stdune.3.22.2/opam
 create mode 100644 packages/top-closure/top-closure.3.22.2/opam
 create mode 100644 packages/xdg/xdg.3.22.2/opam

(from ocaml/opam:debian-13-ocaml-4.08@sha256:e0b0152627fa3b7561d7ce8a98dc3a627b0f9593223ef961a9640ecd727b0b04)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.08@sha256:e0b0152627fa3b7561d7ce8a98dc3a627b0f9593223ef961a9640ecd727b0b04' locally
docker.io/ocaml/opam@sha256:e0b0152627fa3b7561d7ce8a98dc3a627b0f9593223ef961a9640ecd727b0b04: Pulling from ocaml/opam
8f6ad858d0a4: Already exists
9cb5e198c8cf: Already exists
2d346d36dcf2: Already exists
cdc35e289b8d: Already exists
aeb7244bb580: Already exists
fc1943254a0d: Already exists
84238c416f8e: Already exists
fbbfe75d3112: Already exists
221fdc5d9929: Already exists
1fec9149b52a: Already exists
9c6e52557f24: Already exists
8737f5036aae: Already exists
d69c4074de14: Already exists
7237152a5f04: Already exists
fba4b414d8a0: Already exists
40d552afb3ef: Already exists
077cc17dc8e4: Already exists
077cc17dc8e4: Already exists
169e1be36a55: Already exists
0a8a005097ab: Already exists
caba3ec4b361: Already exists
6a364dc641f8: Already exists
4f4fb700ef54: Already exists
ab8052928cdc: Already exists
f5717a28dd6a: Already exists
79233a9b9bed: Already exists
d832d53e7392: Already exists
1872dad82243: Already exists
bfd849b08ba7: Already exists
834a8024ef15: Already exists
98ccec79258b: Already exists
fb48f36a0542: Already exists
3688b13db8e7: Already exists
a5c099f5f72c: Already exists
1ff1760de5b0: Already exists
98eec6764aa5: Already exists
aa22ae69debd: Already exists
12bfb7b962a2: Already exists
ec25ce9bb816: Already exists
beadd3cf7357: Already exists
d0d0c65a426d: Already exists
19dc2e61e84b: Pulling fs layer
828e738ff189: Pulling fs layer
ce9445d90e7f: Pulling fs layer
f0006dd7b265: Pulling fs layer
f0006dd7b265: Waiting
828e738ff189: Download complete
ce9445d90e7f: Verifying Checksum
ce9445d90e7f: Download complete
f0006dd7b265: Download complete
19dc2e61e84b: Verifying Checksum
19dc2e61e84b: Download complete
19dc2e61e84b: Pull complete
828e738ff189: Pull complete
ce9445d90e7f: Pull complete
f0006dd7b265: Pull complete
Digest: sha256:e0b0152627fa3b7561d7ce8a98dc3a627b0f9593223ef961a9640ecd727b0b04
Status: Downloaded newer image for ocaml/opam@sha256:e0b0152627fa3b7561d7ce8a98dc3a627b0f9593223ef961a9640ecd727b0b04
2026-04-10 17:24.30 ---> using "aca3770cb1307a3eab8c4a9c5ec71202ba3f23f614e2ee4b037c71372607e678" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-04-10 17:24.30 ---> using "28f26f5ca3e0c21e626188e1ad0028fe425e9de7626abf6957df5c89bcae397d" 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
2026-04-10 17:24.30 ---> using "67dc0aee698b85048bbb8f7ca5a814129481a15b3adb71afe5557c280dd09a6a" 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         2.5.0
# 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       4.08
# invariant            ["ocaml-base-compiler" {= "4.08.1"}]
# compiler-packages    ocaml-base-compiler.4.08.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.08/lib/ocaml/stublibs:/home/opam/.opam/4.08/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.08.1
2026-04-10 17:24.30 ---> using "62b9445d1497ce83c6b80408625d0bf1dbc5da44ad30282d8f4d7f3566ed01ec" 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/"))
2026-04-10 17:24.30 ---> using "ad27027b9b1503d50df8fdfcc701effc9027b15eab7dd153c714f53de633e9af" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-04-10 17:24.32 ---> saved as "9a97d8211897a9dcad24de04b179c73f366d383dfa72d718bc50eca249176534"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-04-10 17:24.48 ---> saved as "9151c6b6015edb7847a5e77d9117dda87a62ba2e301269d9d6dddfcbf7efe1cf"

/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 [121 kB]
- Fetched 211 kB in 0s (1978 kB/s)
- Reading package lists...
2026-04-10 17:24.49 ---> saved as "02f56966c0b0d2e55068765bc92a59614546bf937a8543977e7034c278b61644"

/home/opam: (run (shell "opam pin add -k version -yn dune-action-plugin.3.22.2 3.22.2"))
dune-action-plugin is now pinned to version 3.22.2
2026-04-10 17:24.49 ---> saved as "fdaef0b6a5af0a2b4775110f93b6a10aba6c37c384250ee56aa2c732d10e300f"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall dune-action-plugin.3.22.2;\
                        \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        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 \"$pkg\" != 'dune-action-plugin.3.22.2' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
dune-action-plugin.3.22.2 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 16 packages
  - install csexp              1.5.2           [required by dune-action-plugin]
  - install dune               3.22.2          [required by dune-action-plugin]
  - install dune-action-plugin 3.22.2 (pinned)
  - install dune-glob          3.22.2          [required by dune-action-plugin]
  - install dune-private-libs  3.22.2          [required by dune-action-plugin]
  - install dune-rpc           3.22.2          [required by dune-action-plugin]
  - install dyn                3.22.2          [required by dune-private-libs, dune-glob, dune-rpc]
  - install fs-io              3.22.2          [required by stdune]
  - install ocamlc-loc         3.22.2          [required by dune-rpc]
  - install ordering           3.22.2          [required by dune-glob, dune-rpc]
  - install pp                 2.0.0           [required by dune-private-libs, dune-rpc]
  - install re                 1.11.0          [required by dune-glob]
  - install seq                base            [required by re]
  - install stdune             3.22.2          [required by dune-action-plugin]
  - install top-closure        3.22.2          [required by stdune]
  - install xdg                3.22.2          [required by dune-rpc]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved csexp.1.5.2  (cached)
-> retrieved dune.3.22.2, dune-action-plugin.3.22.2, dune-glob.3.22.2, dune-private-libs.3.22.2, dune-rpc.3.22.2, dyn.3.22.2, fs-io.3.22.2, ocamlc-loc.3.22.2, ordering.3.22.2, stdune.3.22.2, top-closure.3.22.2, xdg.3.22.2  (https://github.com/ocaml/dune/releases/download/3.22.2/dune-3.22.2.tbz)
-> retrieved pp.2.0.0  (cached)
-> retrieved re.1.11.0  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> installed dune.3.22.2
-> installed csexp.1.5.2
-> installed fs-io.3.22.2
-> installed ordering.3.22.2
-> installed pp.2.0.0
-> installed re.1.11.0
-> installed top-closure.3.22.2
-> installed xdg.3.22.2
-> installed dyn.3.22.2
-> installed ocamlc-loc.3.22.2
-> installed stdune.3.22.2
-> installed dune-glob.3.22.2
-> installed dune-private-libs.3.22.2
-> installed dune-rpc.3.22.2
-> installed dune-action-plugin.3.22.2
Done.
# To update the current shell environment, run: eval $(opam env)
2026-04-10 17:26.02 ---> saved as "d1845dc79c3d6802aae156c9e3bb62a95afc658d540570e5ef723fce31b133ee"

/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 dune-action-plugin.3.22.2;\
                        \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        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 \"$pkg\" != 'dune-action-plugin.3.22.2' && partial_fails=\"$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:
=== remove 1 package
  - remove    seq                base
=== downgrade 4 packages
  - downgrade csexp              1.5.2 to 1.5.1   [required by dune-action-plugin]
  - downgrade dune               3.22.2 to 3.22.0 [required by dune-action-plugin]
  - downgrade re                 1.11.0 to 1.3.0  [required by dune-glob]
  - downgrade xdg                3.22.2 to 3.15.3 [uses dune]
=== recompile 11 packages
  - recompile dune-action-plugin 3.22.2 (pinned)
  - recompile dune-glob          3.22.2           [uses dune]
  - recompile dune-private-libs  3.22.2           [uses csexp]
  - recompile dune-rpc           3.22.2           [uses csexp]
  - recompile dyn                3.22.2           [uses dune]
  - recompile fs-io              3.22.2           [uses dune]
  - recompile ocamlc-loc         3.22.2           [uses dune]
  - recompile ordering           3.22.2           [uses dune]
  - recompile pp                 2.0.0            [uses dune]
  - recompile stdune             3.22.2           [uses csexp]
  - recompile top-closure        3.22.2           [uses dune]
=== install 4 packages
  - install   base-bytes         base             [required by re]
  - install   conf-m4            1                [required by ocamlfind]
  - install   ocamlbuild         0.14.0           [required by re]
  - install   ocamlfind          1.8.0            [required by re]

The following system packages will first need to be installed:
    m4

<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>

opam believes some required external dependencies are missing. opam can:
> 1. Run apt-get to install them (may need root/sudo access)
  2. Display the recommended apt-get command and wait while you run it manually (e.g. in another terminal)
  3. Continue anyway, and, upon success, permanently register that this external dependency is present, but not detectable
  4. Abort the installation

[1/2/3/4] 1

+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "m4"
- Selecting previously unselected package m4.
- (Reading database ... 
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(Reading database ... 20623 files and directories currently installed.)
- Preparing to unpack .../archives/m4_1.4.19-8_amd64.deb ...
- Unpacking m4 (1.4.19-8) ...
- Setting up m4 (1.4.19-8) ...

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved csexp.1.5.1  (cached)
-> installed conf-m4.1
-> retrieved dune.3.22.0  (cached)
-> retrieved dune-action-plugin.3.22.2, dune-glob.3.22.2, dune-private-libs.3.22.2, dune-rpc.3.22.2, dyn.3.22.2, fs-io.3.22.2, ocamlc-loc.3.22.2, ordering.3.22.2, stdune.3.22.2, top-closure.3.22.2  (cached)
-> retrieved ocamlbuild.0.14.0  (cached)
-> retrieved ocamlfind.1.8.0  (cached)
-> retrieved pp.2.0.0  (cached)
-> retrieved re.1.3.0  (https://opam.ocaml.org/cache)
-> retrieved xdg.3.15.3  (cached)
-> installed ocamlfind.1.8.0
-> installed base-bytes.base
-> installed ocamlbuild.0.14.0
-> removed   dune-action-plugin.3.22.2
-> removed   dune-glob.3.22.2
-> removed   dune-private-libs.3.22.2
-> removed   dune-rpc.3.22.2
-> removed   ocamlc-loc.3.22.2
-> removed   re.1.11.0
-> removed   seq.base
-> removed   stdune.3.22.2
-> removed   csexp.1.5.2
-> removed   dyn.3.22.2
-> removed   fs-io.3.22.2
-> removed   ordering.3.22.2
-> removed   pp.2.0.0
-> removed   top-closure.3.22.2
-> removed   xdg.3.22.2
-> removed   dune.3.22.2
-> installed dune.3.22.0
-> installed re.1.3.0
-> installed csexp.1.5.1
-> installed fs-io.3.22.2
-> installed ordering.3.22.2
-> installed pp.2.0.0
-> installed top-closure.3.22.2
-> installed xdg.3.15.3
-> installed dyn.3.22.2
-> installed ocamlc-loc.3.22.2
-> installed stdune.3.22.2
-> installed dune-glob.3.22.2
-> installed dune-private-libs.3.22.2
-> installed dune-rpc.3.22.2
-> installed dune-action-plugin.3.22.2
Done.
# To update the current shell environment, run: eval $(opam env)
2026-04-10 17:27.35 ---> saved as "0e5363666da88f710c1ad7a7bacbd6f85813ab3b9335409f3226fa0dddb4fd82"
Job succeeded
2026-04-10 17:27.43: Job succeeded