Organisationsmirageke226785 (main)(lint-opam)

(lint-opam)

Logs

Show full logs
2026-06-02 17:26.20: New job: test mirage/ke https://github.com/mirage/ke.git#refs/heads/main (2267852fc634134c7de8a274c1b60b9f1a603629) (linux-x86_64:(lint-opam))
Base: ocaml/opam:debian-13-ocaml-5.2@sha256:26d60e8deaee6424c5d0213b45df9190656e7c616c5febfec9dc170744ad31b1
Opam files lint

To reproduce locally:

git clone --recursive "https://github.com/mirage/ke.git" -b "main" && cd "ke" && git reset --hard 2267852f
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.2@sha256:26d60e8deaee6424c5d0213b45df9190656e7c616c5febfec9dc170744ad31b1
# debian-13-5.2_opam-2.5
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.2 /usr/bin/opam
RUN cd ~/opam-repository && (git cat-file -e 1cd46acdace586c6a34b36c779b9380c5a1212fd || git fetch origin master) && git reset -q --hard 1cd46acdace586c6a34b36c779b9380c5a1212fd && git log --no-decorate -n1 --oneline
RUN opam init --reinit -ni
RUN uname -rs && opam exec -- ocaml -version && opam --version
WORKDIR /src
RUN sudo chown opam /src
RUN opam update -u
COPY --chown=1000:1000 ke.opam ./
RUN opam pin add -yn ke.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="afl-persistent.1.4 alcotest.1.9.1 angstrom.0.16.1 astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-nnp.base base-threads.base base-unix.base bechamel.0.5.0 bechamel-js.0.5.0 bigstringaf.0.10.0 bos.0.3.0 cmdliner.2.1.1 cppo.1.8.0 crowbar.0.2.2 csexp.1.5.2 cstruct.6.2.0 dune.3.20.2 dune-configurator.3.20.2 dyn.3.20.2 fmt.0.11.0 fpath.0.7.3 hex.1.5.0 json-data-encoding.1.1.1 jsonm.1.0.2 logs.0.10.0 lwt.6.1.2 menhir.20260209 menhirCST.20260209 menhirGLR.20260209 menhirLib.20260209 menhirSdk.20260209 num.1.6 ocaml.5.2.1 ocaml-base-compiler.5.2.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocamlgraph.2.2.0 ocplib-endian.1.2 opam-core.2.5.1 opam-dune-lint.0.6 opam-file-format.2.2.0 opam-format.2.5.1 opam-repository.2.5.1 opam-state.2.5.1 ordering.3.20.2 parsexp.v0.17.0 patch.3.1.1 pp.2.0.0 psq.0.2.1 re.1.14.0 result.1.5 rresult.0.7.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 sha.1.15.4 spdx_licenses.1.4.0 stdlib-shims.0.3.0 stdune.3.20.2 stringext.1.6.0 swhid_core.0.1 topkg.1.1.1 uri.4.4.0 uutf.1.0.4"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.2 --depext-only -y ke.dev $DEPS
RUN opam install $DEPS
ENV CI="true"
ENV OCAMLCI="true"
WORKDIR /src
COPY --chown=1000:1000 . /src/
RUN opam lint
RUN opam exec -- opam-dune-lint

END-OF-DOCKERFILE
docker build .
END-REPRO-BLOCK

2026-06-02 17:26.20: Using cache hint "mirage/ke-ocaml/opam:debian-13-ocaml-5.2@sha256:26d60e8deaee6424c5d0213b45df9190656e7c616c5febfec9dc170744ad31b1-debian-13-5.2_opam-2.5-6ac0a9253aa8ad0bf1a682dc9aac9b79"
2026-06-02 17:26.20: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.2@sha256:26d60e8deaee6424c5d0213b45df9190656e7c616c5febfec9dc170744ad31b1)
 (comment debian-13-5.2_opam-2.5)
 (user (uid 1000) (gid 1000))
 (env CLICOLOR_FORCE 1)
 (env OPAMCOLOR always)
 (workdir /src)
 (run (shell "sudo ln -f /usr/bin/opam-2.2 /usr/bin/opam"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell "cd ~/opam-repository && (git cat-file -e 1cd46acdace586c6a34b36c779b9380c5a1212fd || git fetch origin master) && git reset -q --hard 1cd46acdace586c6a34b36c779b9380c5a1212fd && git log --no-decorate -n1 --oneline"))
 (run (shell "opam init --reinit -ni"))
 (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
 (workdir /src)
 (run (shell "sudo chown opam /src"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell "opam update -u"))
 (copy (src ke.opam) (dst ./))
 (run (network host)
      (shell "opam pin add -yn ke.dev './'"))
 (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
 (env DEPS "afl-persistent.1.4 alcotest.1.9.1 angstrom.0.16.1 astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-nnp.base base-threads.base base-unix.base bechamel.0.5.0 bechamel-js.0.5.0 bigstringaf.0.10.0 bos.0.3.0 cmdliner.2.1.1 cppo.1.8.0 crowbar.0.2.2 csexp.1.5.2 cstruct.6.2.0 dune.3.20.2 dune-configurator.3.20.2 dyn.3.20.2 fmt.0.11.0 fpath.0.7.3 hex.1.5.0 json-data-encoding.1.1.1 jsonm.1.0.2 logs.0.10.0 lwt.6.1.2 menhir.20260209 menhirCST.20260209 menhirGLR.20260209 menhirLib.20260209 menhirSdk.20260209 num.1.6 ocaml.5.2.1 ocaml-base-compiler.5.2.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocamlgraph.2.2.0 ocplib-endian.1.2 opam-core.2.5.1 opam-dune-lint.0.6 opam-file-format.2.2.0 opam-format.2.5.1 opam-repository.2.5.1 opam-state.2.5.1 ordering.3.20.2 parsexp.v0.17.0 patch.3.1.1 pp.2.0.0 psq.0.2.1 re.1.14.0 result.1.5 rresult.0.7.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 sha.1.15.4 spdx_licenses.1.4.0 stdlib-shims.0.3.0 stdune.3.20.2 stringext.1.6.0 swhid_core.0.1 topkg.1.1.1 uri.4.4.0 uutf.1.0.4")
 (env CI true)
 (env OCAMLCI true)
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell "opam update --depexts && opam install --cli=2.2 --depext-only -y ke.dev $DEPS"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell "opam install $DEPS"))
 (env CI true)
 (env OCAMLCI true)
 (workdir /src)
 (copy (src .) (dst /src/))
 (run (shell "opam lint"))
 (run (shell "opam exec -- opam-dune-lint"))
)

2026-06-02 17:26.20: Waiting for resource in pool OCluster
2026-06-03 05:16.50: Waiting for worker…
2026-06-03 05:30.56: Got resource from pool OCluster
Building on asteria.caelum.ci.dev
All commits already cached
HEAD is now at 2267852 Merge pull request #20 from edwintorok/master

(from ocaml/opam:debian-13-ocaml-5.2@sha256:26d60e8deaee6424c5d0213b45df9190656e7c616c5febfec9dc170744ad31b1)
2026-06-03 05:56.20 ---> using "503ed5afe9018d5040aa2dba759a2e2138f0d96767139d7c938fc99dc949f1e0" from cache

/: (comment debian-13-5.2_opam-2.5)

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

/: (env CLICOLOR_FORCE 1)

/: (env OPAMCOLOR always)

/: (workdir /src)

/src: (run (shell "sudo ln -f /usr/bin/opam-2.2 /usr/bin/opam"))
2026-06-03 05:56.20 ---> using "572d3ae4e4e6cab920a92d32862dd80e2bef5fa0b43e39a26433a5a8f7df4c43" from cache

/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
           (network host)
           (shell "cd ~/opam-repository && (git cat-file -e 1cd46acdace586c6a34b36c779b9380c5a1212fd || git fetch origin master) && git reset -q --hard 1cd46acdace586c6a34b36c779b9380c5a1212fd && git log --no-decorate -n1 --oneline"))
From https://github.com/ocaml/opam-repository
 * branch                  master     -> FETCH_HEAD
   fc08333d1b..1cd46acdac  master     -> origin/master
1cd46acdac Merge pull request #29977 from anteriorcore/fix-bigstringaf-hash
2026-06-03 05:56.20 ---> using "2aeb2e8505cdfe6cc1a10c692b4f928f4b8f13ccd95455bdcd794cd7dbf9700c" from cache

/src: (run (shell "opam init --reinit -ni"))
Configuring from /home/opam/.opamrc and then 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 2.1 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] synchronised from git+file:///home/opam/opam-repository
2026-06-03 05:56.20 ---> using "ee30156a0207b1b76c0444a662edf7c81f9a25e4c9ca2b703cb7de1c52cac3bf" from cache

/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-111-generic
The OCaml toplevel, version 5.2.1
2.2.1
2026-06-03 05:56.20 ---> using "e66996929eda5419be95d43403492530336d0d48aa8b46301e08be6f1d38ddb4" from cache

/src: (workdir /src)

/src: (run (shell "sudo chown opam /src"))
2026-06-03 05:56.20 ---> using "5a559570d5df406f449fa3fa8f70578f2d8225ed549c22a651b59b939a16344d" from cache

/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
           (network host)
           (shell "opam update -u"))

<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes from git+file:///home/opam/opam-repository

Everything as up-to-date as possible (run with --verbose to show unavailable upgrades).

The following packages are not being upgraded because the new versions conflict with other installed packages:
  - ocaml.5.6.0
However, you may "opam upgrade" these packages explicitly, which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# Run eval $(opam env) to update the current shell environment
2026-06-03 05:56.20 ---> using "3c30f5ca6f8f511cfebf36018105bb504fc8285a290518fb985f013eede5cfd2" from cache

/src: (copy (src ke.opam) (dst ./))
2026-06-03 05:56.23 ---> saved as "7be5b56737584d4c8e684e98c2f3f8d06c43390c675b6810a80ae0b5efebaac5"

/src: (run (network host)
           (shell "opam pin add -yn ke.dev './'"))
[ke.dev] synchronised (file:///src)
ke is now pinned to file:///src (version dev)
2026-06-03 05:56.28 ---> saved as "3d57f1b43d175c4164a88c2f24402f8a9a55414c868fcbeb58babc05e49dbf9e"

/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-06-03 05:56.31 ---> saved as "a393497d1a48bad7f447e0d48236cddba94d277e2c14919b9dffb4fd9fff04ea"

/src: (env DEPS "afl-persistent.1.4 alcotest.1.9.1 angstrom.0.16.1 astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-nnp.base base-threads.base base-unix.base bechamel.0.5.0 bechamel-js.0.5.0 bigstringaf.0.10.0 bos.0.3.0 cmdliner.2.1.1 cppo.1.8.0 crowbar.0.2.2 csexp.1.5.2 cstruct.6.2.0 dune.3.20.2 dune-configurator.3.20.2 dyn.3.20.2 fmt.0.11.0 fpath.0.7.3 hex.1.5.0 json-data-encoding.1.1.1 jsonm.1.0.2 logs.0.10.0 lwt.6.1.2 menhir.20260209 menhirCST.20260209 menhirGLR.20260209 menhirLib.20260209 menhirSdk.20260209 num.1.6 ocaml.5.2.1 ocaml-base-compiler.5.2.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocamlgraph.2.2.0 ocplib-endian.1.2 opam-core.2.5.1 opam-dune-lint.0.6 opam-file-format.2.2.0 opam-format.2.5.1 opam-repository.2.5.1 opam-state.2.5.1 ordering.3.20.2 parsexp.v0.17.0 patch.3.1.1 pp.2.0.0 psq.0.2.1 re.1.14.0 result.1.5 rresult.0.7.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 sha.1.15.4 spdx_licenses.1.4.0 stdlib-shims.0.3.0 stdune.3.20.2 stringext.1.6.0 swhid_core.0.1 topkg.1.1.1 uri.4.4.0 uutf.1.0.4")

/src: (env CI true)

/src: (env OCAMLCI true)

/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
           (network host)
           (shell "opam update --depexts && opam install --cli=2.2 --depext-only -y ke.dev $DEPS"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian trixie InRelease [140 kB]
- 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 trixie/main amd64 Packages [9671 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [195 kB]
- Fetched 10.1 MB in 1s (9923 kB/s)
- Reading package lists...

<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[ke.dev] synchronised (file:///src)

[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.2.1).
[NOTE] Package ocaml is already installed (current version is 5.2.1).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
2026-06-03 05:56.45 ---> saved as "29f1ae337ac1549048d77f3aac74e214f88b5ff7c600ad77f61bb764353bd4d6"

/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
           (network host)
           (shell "opam install $DEPS"))
[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.2.1).
[NOTE] Package ocaml is already installed (current version is 5.2.1).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
The following actions will be performed:
=== install 61 packages
  - install afl-persistent     1.4
  - install alcotest           1.9.1
  - install angstrom           0.16.1
  - install astring            0.8.5
  - install base-bytes         base
  - install bechamel           0.5.0
  - install bechamel-js        0.5.0
  - install bigstringaf        0.10.0
  - install bos                0.3.0
  - install cmdliner           2.1.1
  - install cppo               1.8.0
  - install crowbar            0.2.2
  - install csexp              1.5.2
  - install cstruct            6.2.0
  - install dune               3.20.2
  - install dune-configurator  3.20.2
  - install dyn                3.20.2
  - install fmt                0.11.0
  - install fpath              0.7.3
  - install hex                1.5.0
  - install json-data-encoding 1.1.1
  - install jsonm              1.0.2
  - install logs               0.10.0
  - install lwt                6.1.2
  - install menhir             20260209
  - install menhirCST          20260209
  - install menhirGLR          20260209
  - install menhirLib          20260209
  - install menhirSdk          20260209
  - install num                1.6
  - install ocaml-syntax-shims 1.0.0
  - install ocamlbuild         0.16.1
  - install ocamlfind          1.9.8
  - install ocamlgraph         2.2.0
  - install ocplib-endian      1.2
  - install opam-core          2.5.1
  - install opam-dune-lint     0.6
  - install opam-file-format   2.2.0
  - install opam-format        2.5.1
  - install opam-repository    2.5.1
  - install opam-state         2.5.1
  - install ordering           3.20.2
  - install parsexp            v0.17.0
  - install patch              3.1.1
  - install pp                 2.0.0
  - install psq                0.2.1
  - install re                 1.14.0
  - install result             1.5
  - install rresult            0.7.0
  - install seq                base
  - install sexplib            v0.17.0
  - install sexplib0           v0.17.0
  - install sha                1.15.4
  - install spdx_licenses      1.4.0
  - install stdlib-shims       0.3.0
  - install stdune             3.20.2
  - install stringext          1.6.0
  - install swhid_core         0.1
  - install topkg              1.1.1
  - install uri                4.4.0
  - install uutf               1.0.4

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved afl-persistent.1.4  (cached)
-> retrieved astring.0.8.5  (cached)
-> retrieved alcotest.1.9.1  (cached)
-> retrieved angstrom.0.16.1  (cached)
-> retrieved bechamel.0.5.0, bechamel-js.0.5.0  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved bos.0.3.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved cmdliner.2.1.1  (cached)
-> retrieved crowbar.0.2.2  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved cstruct.6.2.0  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved fpath.0.7.3  (cached)
-> retrieved hex.1.5.0  (cached)
-> retrieved json-data-encoding.1.1.1  (cached)
-> retrieved jsonm.1.0.2  (cached)
-> retrieved logs.0.10.0  (cached)
-> retrieved lwt.6.1.2  (cached)
-> retrieved menhir.20260209, menhirCST.20260209, menhirGLR.20260209, menhirLib.20260209, menhirSdk.20260209  (cached)
-> retrieved dune.3.20.2, dune-configurator.3.20.2, dyn.3.20.2, ordering.3.20.2, stdune.3.20.2  (cached)
-> retrieved num.1.6  (cached)
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocamlgraph.2.2.0  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> installed cmdliner.2.1.1
-> retrieved opam-core.2.5.1, opam-format.2.5.1, opam-repository.2.5.1, opam-state.2.5.1  (cached)
-> retrieved opam-dune-lint.0.6  (cached)
-> retrieved opam-file-format.2.2.0  (cached)
-> retrieved parsexp.v0.17.0  (cached)
-> retrieved patch.3.1.1  (cached)
-> retrieved pp.2.0.0  (cached)
-> retrieved psq.0.2.1  (cached)
-> retrieved result.1.5  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved re.1.14.0  (cached)
-> retrieved rresult.0.7.0  (cached)
-> retrieved sexplib.v0.17.0  (cached)
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved sha.1.15.4  (cached)
-> retrieved spdx_licenses.1.4.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved stringext.1.6.0  (cached)
-> retrieved swhid_core.0.1  (cached)
-> retrieved uutf.1.0.4  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved uri.4.4.0  (cached)
-> installed num.1.6
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed rresult.0.7.0
-> installed uutf.1.0.4
-> installed fmt.0.11.0
-> installed astring.0.8.5
-> installed jsonm.1.0.2
-> installed fpath.0.7.3
-> installed dune.3.20.2
-> installed bechamel.0.5.0
-> installed cppo.1.8.0
-> installed csexp.1.5.2
-> installed cstruct.6.2.0
-> installed menhirCST.20260209
-> installed menhirGLR.20260209
-> installed menhirLib.20260209
-> installed menhirSdk.20260209
-> installed ocaml-syntax-shims.1.0.0
-> installed ocamlgraph.2.2.0
-> installed patch.3.1.1
-> installed pp.2.0.0
-> installed psq.0.2.1
-> installed re.1.14.0
-> installed result.1.5
-> installed sexplib0.v0.17.0
-> installed spdx_licenses.1.4.0
-> installed stdlib-shims.0.3.0
-> installed stringext.1.6.0
-> installed swhid_core.0.1
-> installed ocplib-endian.1.2
-> installed hex.1.5.0
-> installed afl-persistent.1.4
-> installed crowbar.0.2.2
-> installed ordering.3.20.2
-> installed parsexp.v0.17.0
-> installed alcotest.1.9.1
-> installed dune-configurator.3.20.2
-> installed sha.1.15.4
-> installed bigstringaf.0.10.0
-> installed sexplib.v0.17.0
-> installed dyn.3.20.2
-> installed angstrom.0.16.1
-> installed lwt.6.1.2
-> installed uri.4.4.0
-> installed logs.0.10.0
-> installed menhir.20260209
-> installed json-data-encoding.1.1.1
-> installed opam-file-format.2.2.0
-> installed opam-core.2.5.1
-> installed stdune.3.20.2
-> installed bechamel-js.0.5.0
-> installed bos.0.3.0
-> installed opam-format.2.5.1
-> installed opam-repository.2.5.1
-> installed opam-state.2.5.1
-> installed opam-dune-lint.0.6
Done.

<><> afl-persistent.1.4 installed successfully ><><><><><><><><><><><><><><><><>
=> afl-persistent is installed, but since the current OCaml compiler does
   not enable AFL instrumentation by default, most packages will not be
   instrumented and fuzzing with afl-fuzz may not be effective.

   To globally enable AFL instrumentation, create an OCaml switch like:

     opam switch create 5.2.1+afl ocaml-variants.5.2.1+options ocaml-option-afl
# Run eval $(opam env) to update the current shell environment
2026-06-03 05:57.48 ---> saved as "6fdeeb3d42b51e2bc7b029c76faf680238780cded304f51a0d1d3ca1c250e05d"

/src: (env CI true)

/src: (env OCAMLCI true)

/src: (workdir /src)

/src: (copy (src .) (dst /src/))
2026-06-03 05:58.01 ---> saved as "5737d5cc5f807dd4c8f6aa103454d9a3769f23a7467a7f1bd3a6477d4d30419e"

/src: (run (shell "opam lint"))
/src/ke.opam: Passed.
2026-06-03 05:58.07 ---> saved as "d6ca7f73677fbc4215aa9c3409cd7482eae680528274ecf5dfbd693b1b38295d"

/src: (run (shell "opam exec -- opam-dune-lint"))
ke.opam: OK
2026-06-03 05:58.10 ---> saved as "c87de98e4383615b51728ef85749da8dab419a386d88c262a2fb441f9d9700cb"
Job succeeded
2026-06-03 05:58.11: Job succeeded