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Organisationsocaml-multicorelwt_eio5f8bf1 ()debian-13-5.4+flambda_opam-2.5

debian-13-5.4+flambda_opam-2.5

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2026-03-14 08:50.04: New job: test ocaml-multicore/lwt_eio https://github.com/ocaml-multicore/lwt_eio.git#refs/pull/31/head (5f8bf1e7af33590683ee45151894d7b9a20607f0) (linux-x86_64:debian-13-5.4+flambda_opam-2.5)
Base: ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:e5745e227280bb7cdb99c8b32d1ccd5effc1c6bfd6a3654ef56d5037a22e2d41
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/ocaml-multicore/lwt_eio.git" && cd "lwt_eio" && git fetch origin "refs/pull/31/head" && git reset --hard 5f8bf1e7
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:e5745e227280bb7cdb99c8b32d1ccd5effc1c6bfd6a3654ef56d5037a22e2d41
# debian-13-5.4+flambda_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 31462e7d24da1419f9eb9099a0b60ea507d91ef6 || git fetch origin master) && git reset -q --hard 31462e7d24da1419f9eb9099a0b60ea507d91ef6 && 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.3.21.1 dune-configurator.3.21.1 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.2.5.1 mtime.2.1.0 ocaml.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-variants.5.4.0+options ocaml-version.4.0.3 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


2026-03-14 08:50.04: Using cache hint "ocaml-multicore/lwt_eio-ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:e5745e227280bb7cdb99c8b32d1ccd5effc1c6bfd6a3654ef56d5037a22e2d41-debian-13-5.4+flambda_opam-2.5-056fd086446a4d42eb18a5ad0524a3b8"
2026-03-14 08:50.04: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:e5745e227280bb7cdb99c8b32d1ccd5effc1c6bfd6a3654ef56d5037a22e2d41)
(comment debian-13-5.4+flambda_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 31462e7d24da1419f9eb9099a0b60ea507d91ef6 || git fetch origin master) && git reset -q --hard 31462e7d24da1419f9eb9099a0b60ea507d91ef6 && 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.3.21.1 dune-configurator.3.21.1 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.2.5.1 mtime.2.1.0 ocaml.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-variants.5.4.0+options ocaml-version.4.0.3 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"))
)


2026-03-14 08:50.04: Waiting for resource in pool OCluster
2026-03-14 09:35.28: Waiting for worker…
2026-03-14 09:36.26: Got resource from pool OCluster
Building on phoebe
All commits already cached
HEAD is now at 5f8bf1e compatibility with lwt.6


(from ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:e5745e227280bb7cdb99c8b32d1ccd5effc1c6bfd6a3654ef56d5037a22e2d41)
2026-03-14 09:36.26 ---> using "99a562272dc8ce3c679ddc6d0cba880bddddf1e9ea3303dd28b933af799c6dd7" from cache


/: (comment debian-13-5.4+flambda_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"))
2026-03-14 09:36.26 ---> using "979124831c702b9ebdd46ca5988dc693ad2c8bdd46c7e8eb458e5f1b8578d558" 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
Format upgrade done.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-03-14 09:36.26 ---> using "ed36e33e2685751c6c787b82ebe87388d91f71485d9e9b7d5693bce3fc644ccf" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-90-generic
The OCaml toplevel, version 5.4.0
2.5.0
2026-03-14 09:36.26 ---> using "b81469fd0f2a80b576e0eb694d6d3cb9cd81729b257965237f6dd1e91fc1b2e6" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-03-14 09:36.26 ---> using "5630e91122e70a7afd83fd5c1530e31b84e3c4824ac11ecb8163900e5dbaf849" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 31462e7d24da1419f9eb9099a0b60ea507d91ef6 || git fetch origin master) && git reset -q --hard 31462e7d24da1419f9eb9099a0b60ea507d91ef6 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
3109384a92..f2e7a221a1  master     -> origin/master
31462e7d24 Merge pull request #29451 from dra27/relocatable-package


<><> 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)
2026-03-14 09:36.26 ---> using "5fb79d18ad394ff04ceca0e0fce9cd3772434e9de4ce3f3f24760c14db0394f9" from cache


/src: (copy (src lwt_eio.opam) (dst ./))
2026-03-14 09:36.26 ---> saved as "2cfd0a8b888ae4a60d992f8645e8d0c47ab58b26f906da96d7041572326f5485"


/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)
2026-03-14 09:36.29 ---> saved as "59edb61a97e22dc36b92c7030f3f4e8c25a07c8ab9d76fb20689081b4079bd4d"


/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-03-14 09:36.29 ---> saved as "8644d4eeb5afc13d728f2fd0f054b25d57dd5789ce59e87e6940777b945948a9"


/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.3.21.1 dune-configurator.3.21.1 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.2.5.1 mtime.2.1.0 ocaml.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-variants.5.4.0+options ocaml-version.4.0.3 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://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 [111 kB]
- Fetched 202 kB in 0s (1787 kB/s)
- Reading package lists...
- 


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


[NOTE] Package ocaml-variants is already installed (current version is 5.4.0+options).
[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 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)
2026-03-14 09:36.40 ---> saved as "f9161281c345f2964f92f5003507678b04c012c07805512466c29179e82207a2"


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
[NOTE] Package ocaml-variants is already installed (current version is 5.4.0+options).
[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 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               3.21.1
- install dune-configurator  3.21.1
- 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                2.5.1
- install mtime              2.1.0
- install ocaml-version      4.0.3
- 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 csexp.1.5.2  (cached)
-> retrieved cmdliner.2.1.0  (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.4.0.3  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved mdx.2.5.1  (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 re.1.14.0  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved result.1.5  (cached)
-> retrieved thread-table.1.0.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved uring.2.7.0  (cached)
-> retrieved dune.3.21.1, dune-configurator.3.21.1  (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 mtime.2.1.0
-> installed fmt.0.11.0
-> installed astring.0.8.5
-> installed dune.3.21.1
-> installed lwt-dllist.1.1.0
-> installed result.1.5
-> installed csexp.1.5.2
-> installed camlp-streams.5.0.1
-> installed cppo.1.8.0
-> installed cstruct.6.2.0
-> installed ocaml-version.4.0.3
-> installed optint.0.3.0
-> installed psq.0.2.1
-> installed re.1.14.0
-> installed thread-table.1.0.0
-> installed ocplib-endian.1.2
-> installed domain-local-await.1.0.1
-> installed dune-configurator.3.21.1
-> installed bigstringaf.0.10.0
-> installed iomux.0.4
-> installed uring.2.7.0
-> installed eio.1.3
-> 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.2.5.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-14 09:38.10 ---> saved as "3cbc796d1175479e311c91dd04dcbc54302296fec744ffa9649027ca7201fcac"


/src: (copy (src .) (dst /src))
2026-03-14 09:38.11 ---> saved as "e8387b1dd06d7e3089d2ac5f2bc91f2a4f628f8737b1517c055f83d4cd50af09"


/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
File "test/test.md", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/test.md _build/default/test/.mdx/test.md.corrected
diff --git a/_build/default/test/test.md b/_build/default/test/.mdx/test.md.corrected
index 7a9272f..ac6774e 100644
--- a/_build/default/test/test.md
+++ b/_build/default/test/.mdx/test.md.corrected
@@ -41,20 +41,20 @@ Lwt and Eio fibers don't block each other:
);;
+eio: i = 1
+  lwt: i = 1
-+  lwt: i = 2
+eio: i = 2
-+  lwt: i = 3
++  lwt: i = 2
+eio: i = 3
-+  lwt: i = 4
++  lwt: i = 3
+eio: i = 4
-+  lwt: i = 5
++  lwt: i = 4
+eio: i = 5
-+  lwt: i = 6
++  lwt: i = 5
+eio: i = 6
-+  lwt: i = 7
++  lwt: i = 6
+eio: i = 7
-+  lwt: i = 8
++  lwt: i = 7
+eio: i = 8
++  lwt: i = 8
- : unit = ()
```


"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2026-03-14 09:38.21: Job failed: Failed: Build failed