ubuntu-25.04-5.4_opam-2.5

2026-04-14 07:59.39: New job: test ocaml-multicore/lwt_eio https://github.com/ocaml-multicore/lwt_eio.git#refs/heads/master (1fb0815d20827bc3e336b5410fbb0d49b36f5334) (linux-x86_64:ubuntu-25.04-5.4_opam-2.5)
Base: ocaml/opam:ubuntu-25.04-ocaml-5.4@sha256:1392b3374151dde502298fb402f7e5cbd3d536daa09298b8390cbcf47436e115
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/ocaml-multicore/lwt_eio.git" -b "master" && cd "lwt_eio" && git reset --hard 1fb0815d
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-25.04-ocaml-5.4@sha256:1392b3374151dde502298fb402f7e5cbd3d536daa09298b8390cbcf47436e115
# ubuntu-25.04-5.4_opam-2.5
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.5 /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 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u
COPY --chown=1000:1000 lwt_eio.opam ./
RUN opam pin add -yn lwt_eio.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 dune.3.22.2 dune-configurator.3.22.2 eio.1.3 eio_linux.1.3 eio_main.1.3 eio_posix.1.3 fmt.0.11.0 hmap.0.8.1 iomux.0.4 logs.0.10.0 lwt.6.1.1 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 psq.0.2.1 re.1.14.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.1.1 uring.2.7.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.5 --depext-only -y lwt_eio.dev $DEPS
RUN opam install $DEPS
COPY --chown=1000:1000 . /src
RUN opam exec -- dune build @install @check @runtest && rm -rf _build


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


2026-04-14 07:59.39: Using cache hint "ocaml-multicore/lwt_eio-ocaml/opam:ubuntu-25.04-ocaml-5.4@sha256:1392b3374151dde502298fb402f7e5cbd3d536daa09298b8390cbcf47436e115-ubuntu-25.04-5.4_opam-2.5-e4065a89f7002a5975f1068df99e5b8b"
2026-04-14 07:59.39: Using OBuilder spec:
((from ocaml/opam:ubuntu-25.04-ocaml-5.4@sha256:1392b3374151dde502298fb402f7e5cbd3d536daa09298b8390cbcf47436e115)
(comment ubuntu-25.04-5.4_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-2.5 /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 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u"))
(copy (src lwt_eio.opam) (dst ./))
(run (network host)
(shell "opam pin add -yn lwt_eio.dev './'"))
(run (shell "echo '(lang dune 3.0)' > './dune-project'"))
(env DEPS "astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 dune.3.22.2 dune-configurator.3.22.2 eio.1.3 eio_linux.1.3 eio_main.1.3 eio_posix.1.3 fmt.0.11.0 hmap.0.8.1 iomux.0.4 logs.0.10.0 lwt.6.1.1 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 psq.0.2.1 re.1.14.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.1.1 uring.2.7.0")
(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=2.5 --depext-only -y lwt_eio.dev $DEPS"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
(copy (src .) (dst /src))
(run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
)


2026-04-14 07:59.39: Waiting for resource in pool OCluster
2026-04-14 08:24.52: Waiting for worker…
2026-04-14 08:29.15: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
Initialised empty Git repository in /var/cache/obuilder/ocluster/git/lwt_eio.git-03549f0b94e06ebe87f28d868bc80903bc20db5a/.git/
HEAD is now at 1fb0815 Merge pull request #32 from talex5/release


(from ocaml/opam:ubuntu-25.04-ocaml-5.4@sha256:1392b3374151dde502298fb402f7e5cbd3d536daa09298b8390cbcf47436e115)
2026-04-14 08:29.16 ---> using "95bdebae0a545d6ea94d55419bd063ed0c35f612d0599400a10d8512d69a6778" from cache


/: (comment ubuntu-25.04-5.4_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-2.5 /usr/bin/opam"))
2026-04-14 08:29.16 ---> using "daac9f0907cd3aeff57945845e42d9387a97cc331d813ddd108b4acd63bf7314" 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 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
[NOTE] The 'jobs' option was reset, its value was 255 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=255 --global
Format upgrade done.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-04-14 08:29.16 ---> using "034505edb0785968949353ccef53d2e6734e76b1b0ed109cb92459e2abc9bfa3" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-107-generic
The OCaml toplevel, version 5.4.0
2.5.0
2026-04-14 08:29.16 ---> using "0347616b6723c8f712d85b59de102a237bd72b0458d03e761a1ef51167d830b2" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-04-14 08:29.16 ---> using "334e6a11ef2042edf5439ad61b8d56383c8cff74ab21835cd8e65661afcd8e68" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
ffb54b9bdd..9af1f0b103  master     -> origin/master
5f7bb1a6e6 Merge pull request #29704 from shonfeder/release-dune-3.22.2


<><> 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 at these versions (e.g. "opam upgrade ocaml.5.5.0"), which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2026-04-14 08:29.16 ---> using "51bc7a2e10ca3f290c9750fbce78b750ff91008cc1febdd5ce9d982659faa5ef" from cache


/src: (copy (src lwt_eio.opam) (dst ./))
2026-04-14 08:29.17 ---> saved as "5ec5b2433f1d62fae0393d2bb83cf1a89a5f5dfd2cd0e8d17ea91accfd83e1c3"


/src: (run (network host)
(shell "opam pin add -yn lwt_eio.dev './'"))
[lwt_eio.dev] synchronised (file:///src)
lwt_eio is now pinned to file:///src (version dev)
2026-04-14 08:29.19 ---> saved as "552424fb31eb5e183561d6073e000bccb50ef94bf42b967faaf49ff6a226b7ce"


/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-04-14 08:29.19 ---> saved as "0b30b68db7184e35ff4629b4941484a067626e1ed09a0f11560c6c5e74d6f242"


/src: (env DEPS "astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 dune.3.22.2 dune-configurator.3.22.2 eio.1.3 eio_linux.1.3 eio_main.1.3 eio_posix.1.3 fmt.0.11.0 hmap.0.8.1 iomux.0.4 logs.0.10.0 lwt.6.1.1 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 psq.0.2.1 re.1.14.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.1.1 uring.2.7.0")


/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=2.5 --depext-only -y lwt_eio.dev $DEPS"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://archive.ubuntu.com/ubuntu plucky InRelease
- Hit:2 http://archive.ubuntu.com/ubuntu plucky-updates InRelease
- Hit:3 http://archive.ubuntu.com/ubuntu plucky-backports InRelease
- Hit:4 http://security.ubuntu.com/ubuntu plucky-security InRelease
- Reading package lists...
- 


<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[lwt_eio.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-compiler is already installed (current version is 5.4.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0).
[NOTE] Package ocaml is already installed (current version is 5.4.0).
[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-effects 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).
# To update the current shell environment, run: eval $(opam env)
2026-04-14 08:29.36 ---> saved as "37f08d04e902e51e2678253e9e91085307edc565981b5e939abec07794be5a51"


/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-compiler is already installed (current version is 5.4.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0).
[NOTE] Package ocaml is already installed (current version is 5.4.0).
[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-effects 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 35 packages
- install astring            0.8.5
- install base-bytes         base
- install bigstringaf        0.10.0
- install camlp-streams      5.0.1
- install cmdliner           2.1.0
- install cppo               1.8.0
- install csexp              1.5.2
- install cstruct            6.2.0
- install domain-local-await 1.0.1
- install dune               3.22.2
- install dune-configurator  3.22.2
- install eio                1.3
- install eio_linux          1.3
- install eio_main           1.3
- install eio_posix          1.3
- install fmt                0.11.0
- install hmap               0.8.1
- install iomux              0.4
- install logs               0.10.0
- install lwt                6.1.1
- install lwt-dllist         1.1.0
- install mdx                2.5.2
- install mtime              2.1.0
- install ocaml-version      4.0.4
- install ocamlbuild         0.16.1
- install ocamlfind          1.9.8
- install ocplib-endian      1.2
- install optint             0.3.0
- install psq                0.2.1
- install re                 1.14.0
- install result             1.5
- install seq                base
- install thread-table       1.0.0
- install topkg              1.1.1
- install uring              2.7.0


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved astring.0.8.5  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved camlp-streams.5.0.1  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved cstruct.6.2.0  (cached)
-> retrieved domain-local-await.1.0.1  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved hmap.0.8.1  (cached)
-> retrieved iomux.0.4  (cached)
-> retrieved logs.0.10.0  (cached)
-> retrieved lwt.6.1.1  (cached)
-> retrieved eio.1.3, eio_linux.1.3, eio_main.1.3, eio_posix.1.3  (cached)
-> retrieved lwt-dllist.1.1.0  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved ocaml-version.4.0.4  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved mdx.2.5.2  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> retrieved optint.0.3.0  (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 thread-table.1.0.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved uring.2.7.0  (cached)
-> retrieved dune.3.22.2, dune-configurator.3.22.2  (cached)
-> installed cmdliner.2.1.0
-> installed ocamlbuild.0.16.1
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed topkg.1.1.1
-> installed hmap.0.8.1
-> installed fmt.0.11.0
-> installed mtime.2.1.0
-> installed astring.0.8.5
-> installed dune.3.22.2
-> installed csexp.1.5.2
-> installed camlp-streams.5.0.1
-> installed cppo.1.8.0
-> installed cstruct.6.2.0
-> installed lwt-dllist.1.1.0
-> installed ocaml-version.4.0.4
-> installed optint.0.3.0
-> installed psq.0.2.1
-> installed result.1.5
-> installed thread-table.1.0.0
-> installed re.1.14.0
-> installed ocplib-endian.1.2
-> installed domain-local-await.1.0.1
-> installed dune-configurator.3.22.2
-> installed bigstringaf.0.10.0
-> installed iomux.0.4
-> installed eio.1.3
-> installed uring.2.7.0
-> installed lwt.6.1.1
-> installed eio_linux.1.3
-> installed eio_posix.1.3
-> installed eio_main.1.3
-> installed logs.0.10.0
-> installed mdx.2.5.2
Done.
# To update the current shell environment, run: eval $(opam env)
2026-04-14 08:31.37 ---> saved as "f6b152b93bd9f7938ddbf707599b759a0098efc31cfaf40fd93a76a5b5d20af1"


/src: (copy (src .) (dst /src))
2026-04-14 08:31.37 ---> saved as "00cb118c33a56331950ac4fe7abbac857c69685b372d4b49f8678ed836d859be"


/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
2026-04-14 08:31.45 ---> saved as "4c54f377b4df795814dc0cbac5582007561bcbc34b2258e823a508bdd9bfaa42"
Job succeeded
2026-04-14 08:31.45: Job succeeded