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2026-02-13 08:05.29: New job: test jmid/mutaml https://github.com/jmid/mutaml.git#refs/heads/dependabot/github_actions/actions/checkout-6 (ab175d87a5b0b03034040da9b3097a82fc0b9958) (linux-x86_64:(lint-doc))
Base: ocaml/opam:debian-13-ocaml-4.12@sha256:31d9dbede0f78d56760049fd006989ebb3dcc8591cf393c369d27567889941f7
Opam project lint documentation


To reproduce locally:


git clone --recursive "https://github.com/jmid/mutaml.git" -b "dependabot/github_actions/actions/checkout-6" && cd "mutaml" && git reset --hard ab175d87
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.12@sha256:31d9dbede0f78d56760049fd006989ebb3dcc8591cf393c369d27567889941f7
# debian-13-4.12_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 opam init --reinit -ni
RUN uname -rs && opam exec -- ocaml -version && opam --version
WORKDIR /src
RUN sudo chown opam /src
RUN cd ~/opam-repository && (git cat-file -e 302e116c4009da2f5a31c350a57c8b3c9b27289e || git fetch origin master) && git reset -q --hard 302e116c4009da2f5a31c350a57c8b3c9b27289e && git log --no-decorate -n1 --oneline && opam update -u
COPY --chown=1000:1000 mutaml.opam ./
RUN opam pin add -yn mutaml.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="base.v0.15.1 base-bigarray.base base-threads.base base-unix.base conf-diffutils.2 conf-timeout.1 cppo.1.8.0 csexp.1.5.2 dune.3.21.1 dune-configurator.3.21.1 ocaml.4.12.1 ocaml-base-compiler.4.12.1 ocaml-compiler-libs.v0.12.4 ocaml-config.2 ocaml-options-vanilla.1 ocamlfind.1.9.8 octavius.1.2.2 ounit2.2.2.7 ppx_derivers.1.2.1 ppx_deriving.6.0.3 ppx_js_style.v0.15.0 ppx_yojson_conv.v0.15.1 ppx_yojson_conv_lib.v0.15.0 ppxlib.0.35.0 seq.base sexplib0.v0.15.1 stdlib-random.1.2.0 stdlib-shims.0.3.0 yojson.3.0.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.2 --depext-only -y mutaml.dev $DEPS
RUN opam install $DEPS
RUN opam install --yes dune 'odoc>=1.5.0'
COPY --chown=1000:1000 . /src/
RUN ODOC_WARN_ERROR=false opam exec -- dune build @doc || (echo "dune build @doc failed"; exit 2)


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


2026-02-13 08:05.29: Using cache hint "jmid/mutaml-ocaml/opam:debian-13-ocaml-4.12@sha256:31d9dbede0f78d56760049fd006989ebb3dcc8591cf393c369d27567889941f7-debian-13-4.12_opam-2.5-7b53de7175a9ed5ad3597004baa5c012"
2026-02-13 08:05.29: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.12@sha256:31d9dbede0f78d56760049fd006989ebb3dcc8591cf393c369d27567889941f7)
(comment debian-13-4.12_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 (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 "cd ~/opam-repository && (git cat-file -e 302e116c4009da2f5a31c350a57c8b3c9b27289e || git fetch origin master) && git reset -q --hard 302e116c4009da2f5a31c350a57c8b3c9b27289e && git log --no-decorate -n1 --oneline && opam update -u"))
(copy (src mutaml.opam) (dst ./))
(run (network host)
(shell "opam pin add -yn mutaml.dev './'"))
(run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
(env DEPS "base.v0.15.1 base-bigarray.base base-threads.base base-unix.base conf-diffutils.2 conf-timeout.1 cppo.1.8.0 csexp.1.5.2 dune.3.21.1 dune-configurator.3.21.1 ocaml.4.12.1 ocaml-base-compiler.4.12.1 ocaml-compiler-libs.v0.12.4 ocaml-config.2 ocaml-options-vanilla.1 ocamlfind.1.9.8 octavius.1.2.2 ounit2.2.2.7 ppx_derivers.1.2.1 ppx_deriving.6.0.3 ppx_js_style.v0.15.0 ppx_yojson_conv.v0.15.1 ppx_yojson_conv_lib.v0.15.0 ppxlib.0.35.0 seq.base sexplib0.v0.15.1 stdlib-random.1.2.0 stdlib-shims.0.3.0 yojson.3.0.0")
(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 mutaml.dev $DEPS"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install --yes dune 'odoc>=1.5.0'"))
(copy (src .) (dst /src/))
(run (shell "ODOC_WARN_ERROR=false opam exec -- dune build @doc || (echo \"dune build @doc failed\"; exit 2)"))
)


2026-02-13 08:05.29: Waiting for resource in pool OCluster
2026-02-13 08:45.44: Waiting for worker…
2026-02-13 08:48.41: Got resource from pool OCluster
Building on eumache
All commits already cached
HEAD is now at ab175d8 Bump actions/checkout from 5 to 6


(from ocaml/opam:debian-13-ocaml-4.12@sha256:31d9dbede0f78d56760049fd006989ebb3dcc8591cf393c369d27567889941f7)
2026-02-13 08:48.41 ---> using "4d1d68efb85067cf7a79fa9007242e66e40b48ace5a5648cd96317ff96a438e1" from cache


/: (comment debian-13-4.12_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"))
2026-02-13 08:48.41 ---> using "cb2f5617199972131f688a9448783e5f65cefb4381be82787274defd4e4f192a" 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 2.0 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
2026-02-13 08:48.41 ---> using "6171645077a1412a698ac341aa3e8c415a8f79bc67b2e6c53ecb464b2ed87ea0" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 5.15.0-131-generic
The OCaml toplevel, version 4.12.1
2.2.1
2026-02-13 08:48.41 ---> using "f5d0d374ee589a8b41ef0d671bc1b9269145ed71a2ee11d20545663d59c15e42" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-02-13 08:48.41 ---> using "6f6638c4695cd3c6aad3ed2acb7ae3b066ecd943f321b9446ac099b4f7a7a29a" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 302e116c4009da2f5a31c350a57c8b3c9b27289e || git fetch origin master) && git reset -q --hard 302e116c4009da2f5a31c350a57c8b3c9b27289e && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
340ee6fd1f..302e116c40  master     -> origin/master
302e116c40 Merge pull request #29374 from shonfeder/release-dune-3.21.1


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] synchronised from git+file:///home/opam/opam-repository


Everything as up-to-date as possible (run with --verbose to show unavailable upgrades).
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
2026-02-13 08:48.41 ---> using "f3ea75433fe8ddd772324585bedf88182b89ce96f6780ab124a5f8ac9eaa5aa1" from cache


/src: (copy (src mutaml.opam) (dst ./))
2026-02-13 08:48.41 ---> using "8a843d50b3950a5b79b0263167bc689077910514d754a89313de6612aff4b103" from cache


/src: (run (network host)
(shell "opam pin add -yn mutaml.dev './'"))
[mutaml.dev] synchronised (file:///src)
mutaml is now pinned to file:///src (version dev)
2026-02-13 08:48.41 ---> using "ca1cb69ed712ac2ef9d5155938e3f2a998c8111e253d9a04603c3a8a8fd10973" from cache


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-02-13 08:48.41 ---> using "27a00d8f627cfea463a5b975151f800ddcb34c52c3418bd9bd9e4e35857b6ded" from cache


/src: (env DEPS "base.v0.15.1 base-bigarray.base base-threads.base base-unix.base conf-diffutils.2 conf-timeout.1 cppo.1.8.0 csexp.1.5.2 dune.3.21.1 dune-configurator.3.21.1 ocaml.4.12.1 ocaml-base-compiler.4.12.1 ocaml-compiler-libs.v0.12.4 ocaml-config.2 ocaml-options-vanilla.1 ocamlfind.1.9.8 octavius.1.2.2 ounit2.2.2.7 ppx_derivers.1.2.1 ppx_deriving.6.0.3 ppx_js_style.v0.15.0 ppx_yojson_conv.v0.15.1 ppx_yojson_conv_lib.v0.15.0 ppxlib.0.35.0 seq.base sexplib0.v0.15.1 stdlib-random.1.2.0 stdlib-shims.0.3.0 yojson.3.0.0")


/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 mutaml.dev $DEPS"))
+ /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 [108 kB]
- Fetched 198 kB in 0s (1793 kB/s)
- Reading package lists...
- 


<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[mutaml.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 2).
[NOTE] Package ocaml-base-compiler is already installed (current version is 4.12.1).
[NOTE] Package ocaml is already installed (current version is 4.12.1).
[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-bigarray is already installed (current version is base).
2026-02-13 08:48.41 ---> using "55057ce7cc415ede0b5df108a4b5a492aeec057992ed520ff1f4022aa22eec9a" from cache


/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 2).
[NOTE] Package ocaml-base-compiler is already installed (current version is 4.12.1).
[NOTE] Package ocaml is already installed (current version is 4.12.1).
[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-bigarray is already installed (current version is base).
The following actions will be performed:
=== install 22 packages
- install base                v0.15.1
- install conf-diffutils      2
- install conf-timeout        1
- install cppo                1.8.0
- install csexp               1.5.2
- install dune                3.21.1
- install dune-configurator   3.21.1
- install ocaml-compiler-libs v0.12.4
- install ocamlfind           1.9.8
- install octavius            1.2.2
- install ounit2              2.2.7
- install ppx_derivers        1.2.1
- install ppx_deriving        6.0.3
- install ppx_js_style        v0.15.0
- install ppx_yojson_conv     v0.15.1
- install ppx_yojson_conv_lib v0.15.0
- install ppxlib              0.35.0
- install seq                 base
- install sexplib0            v0.15.1
- install stdlib-random       1.2.0
- install stdlib-shims        0.3.0
- install yojson              3.0.0


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed conf-diffutils.2
-> retrieved cppo.1.8.0  (cached)
-> retrieved base.v0.15.1  (cached)
-> retrieved csexp.1.5.2  (cached)
-> installed conf-timeout.1
-> retrieved ocaml-compiler-libs.v0.12.4  (cached)
-> retrieved octavius.1.2.2  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ounit2.2.2.7  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppx_js_style.v0.15.0  (cached)
-> retrieved ppx_deriving.6.0.3  (cached)
-> retrieved ppx_yojson_conv.v0.15.1  (cached)
-> retrieved ppx_yojson_conv_lib.v0.15.0  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved sexplib0.v0.15.1  (cached)
-> retrieved stdlib-random.1.2.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved yojson.3.0.0  (cached)
-> retrieved ppxlib.0.35.0  (cached)
-> retrieved dune.3.21.1, dune-configurator.3.21.1  (cached)
-> installed ocamlfind.1.9.8
-> installed dune.3.21.1
-> installed ppx_derivers.1.2.1
-> installed csexp.1.5.2
-> installed cppo.1.8.0
-> installed ocaml-compiler-libs.v0.12.4
-> installed octavius.1.2.2
-> installed sexplib0.v0.15.1
-> installed stdlib-shims.0.3.0
-> installed yojson.3.0.0
-> installed stdlib-random.1.2.0
-> installed ppx_yojson_conv_lib.v0.15.0
-> installed ounit2.2.2.7
-> installed dune-configurator.3.21.1
-> installed base.v0.15.1
-> installed ppxlib.0.35.0
-> installed ppx_js_style.v0.15.0
-> installed ppx_deriving.6.0.3
-> installed ppx_yojson_conv.v0.15.1
Done.
# Run eval $(opam env) to update the current shell environment
2026-02-13 08:48.42 ---> using "f2c95dfb607a3e680e8c120c6c9bc7e6dc8c4ac583df52dddd9d795a022f31b6" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install --yes dune 'odoc>=1.5.0'"))
[NOTE] Package dune is already installed (current version is 3.21.1).
The following actions will be performed:
=== install 14 packages
- install astring       0.8.5  [required by odoc]
- install camlp-streams 5.0.1  [required by odoc-parser]
- install cmdliner      2.1.0  [required by odoc]
- install crunch        4.0.0  [required by odoc]
- install fmt           0.11.0 [required by odoc]
- install fpath         0.7.3  [required by odoc]
- install ocamlbuild    0.16.1 [required by fmt, astring, fpath]
- install odoc          3.1.0
- install odoc-parser   3.1.0  [required by odoc]
- install ptime         1.2.0  [required by crunch]
- install re            1.12.0 [required by tyxml]
- install topkg         1.1.1  [required by fmt, astring, fpath]
- install tyxml         4.6.0  [required by odoc]
- install uutf          1.0.4  [required by tyxml]


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved camlp-streams.5.0.1  (cached)
-> retrieved astring.0.8.5  (cached)
-> retrieved crunch.4.0.0  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved fpath.0.7.3  (cached)
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ptime.1.2.0  (cached)
-> retrieved re.1.12.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved tyxml.4.6.0  (cached)
-> retrieved uutf.1.0.4  (cached)
-> installed camlp-streams.5.0.1
-> retrieved odoc.3.1.0, odoc-parser.3.1.0  (cached)
-> installed re.1.12.0
-> installed cmdliner.2.1.0
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed uutf.1.0.4
-> installed fmt.0.11.0
-> installed ptime.1.2.0
-> installed astring.0.8.5
-> installed crunch.4.0.0
-> installed fpath.0.7.3
-> installed odoc-parser.3.1.0
-> installed tyxml.4.6.0
-> installed odoc.3.1.0
Done.
# Run eval $(opam env) to update the current shell environment
2026-02-13 08:48.42 ---> using "3a935fde78379a7af8247521b002b5492b48af1daa2c93b543e1b6aefe822e45" from cache


/src: (copy (src .) (dst /src/))
2026-02-13 08:48.42 ---> saved as "bdbb74dac2373eefdd435edcb09c38687df31578c76d66d1785d8ded1d9d5aac"


/src: (run (shell "ODOC_WARN_ERROR=false opam exec -- dune build @doc || (echo \"dune build @doc failed\"; exit 2)"))
2026-02-13 08:48.46 ---> saved as "dc51c609c23a8d5478d933e9c9b3bf358ef02dd4d35908e6220a12918694271f"
Job succeeded
2026-02-13 08:48.46: Job succeeded