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2026-03-14 10:17.24: New job: test ocaml-multicore/lwt_eio https://github.com/ocaml-multicore/lwt_eio.git#refs/pull/31/head (5f8bf1e7af33590683ee45151894d7b9a20607f0) (linux-x86_64:(lower-bound))
Base: ocaml/opam:debian-13-ocaml-5.1@sha256:9fdb6b12483b6ee211502cfcdccfa603bc203949c6b28773b62e63598c724d35
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-5.1@sha256:9fdb6b12483b6ee211502cfcdccfa603bc203949c6b28773b62e63598c724d35
# debian-13-5.1_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-nnp.base base-threads.base base-unix.base bigarray-compat.1.1.0 bigstringaf.0.9.0 camlp-streams.5.0.1 cmdliner.1.3.0 conf-pkg-config.1.0 cppo.1.6.6 csexp.1.3.2 cstruct.6.0.1 domain-local-await.0.1.0 dune.3.10.0 dune-configurator.2.9.3 eio.0.13 eio_linux.0.13 eio_main.0.13 eio_posix.0.13 fmt.0.9.0 hmap.0.8.1 iomux.0.2 logs.0.7.0 lwt.5.7.0 lwt-dllist.1.0.0 mdx.2.3.1 mtime.2.1.0 ocaml.5.1.1 ocaml-base-compiler.5.1.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.3.5.0 ocamlbuild.0.14.2 ocamlfind.1.9.6 ocplib-endian.1.1 optint.0.3.0 psq.0.2.0 re.1.9.0 result.1.5 seq.0.3 topkg.1.0.8 uring.0.7"
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 10:17.24: Using cache hint "ocaml-multicore/lwt_eio-ocaml/opam:debian-13-ocaml-5.1@sha256:9fdb6b12483b6ee211502cfcdccfa603bc203949c6b28773b62e63598c724d35-debian-13-5.1_opam-2.5-042508977a10857de67f9425eb5b62e5"
2026-03-14 10:17.24: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.1@sha256:9fdb6b12483b6ee211502cfcdccfa603bc203949c6b28773b62e63598c724d35)
(comment debian-13-5.1_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-nnp.base base-threads.base base-unix.base bigarray-compat.1.1.0 bigstringaf.0.9.0 camlp-streams.5.0.1 cmdliner.1.3.0 conf-pkg-config.1.0 cppo.1.6.6 csexp.1.3.2 cstruct.6.0.1 domain-local-await.0.1.0 dune.3.10.0 dune-configurator.2.9.3 eio.0.13 eio_linux.0.13 eio_main.0.13 eio_posix.0.13 fmt.0.9.0 hmap.0.8.1 iomux.0.2 logs.0.7.0 lwt.5.7.0 lwt-dllist.1.0.0 mdx.2.3.1 mtime.2.1.0 ocaml.5.1.1 ocaml-base-compiler.5.1.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.3.5.0 ocamlbuild.0.14.2 ocamlfind.1.9.6 ocplib-endian.1.1 optint.0.3.0 psq.0.2.0 re.1.9.0 result.1.5 seq.0.3 topkg.1.0.8 uring.0.7")
(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 10:17.24: Waiting for resource in pool OCluster
2026-03-14 11:27.41: Waiting for worker…
2026-03-14 11:30.47: 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-5.1@sha256:9fdb6b12483b6ee211502cfcdccfa603bc203949c6b28773b62e63598c724d35)
Unable to find image 'ocaml/opam:debian-13-ocaml-5.1@sha256:9fdb6b12483b6ee211502cfcdccfa603bc203949c6b28773b62e63598c724d35' locally
docker.io/ocaml/opam@sha256:9fdb6b12483b6ee211502cfcdccfa603bc203949c6b28773b62e63598c724d35: Pulling from ocaml/opam
866771c43bf5: Already exists
1e49bea09367: Already exists
e793768537e6: Already exists
ed323d3d481a: Already exists
7df34a5cd5f1: Already exists
fd712d3eb935: Already exists
4b9fb8c99118: Already exists
9d9a01948b94: Already exists
0f1514f90b32: Already exists
e1ec5a753447: Already exists
03cc323e2f71: Already exists
c09c08ea9749: Already exists
b36b619f8e6b: Already exists
195344ca5274: Already exists
228ee78582a6: Already exists
504bde1c25b3: Already exists
9d8b1356c89f: Already exists
9d8b1356c89f: Already exists
568fb6dda155: Already exists
c499c9198aea: Already exists
048e5e358118: Already exists
871ca48eb45d: Already exists
4f4fb700ef54: Already exists
a5a2568b9df9: Already exists
068cf3106ac8: Already exists
559f54ec9b29: Already exists
798ffd96fde5: Already exists
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d720cfe12674: Already exists
c81c932f4a91: Already exists
79f24fa3bb11: Already exists
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1bb2cfea7250: Already exists
2b3d3ca75e4c: Already exists
557cacaf263c: Already exists
d10483022eef: Already exists
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28ce8ea66e72: Already exists
d975909ea717: Already exists
5c215c69c247: Already exists
e7c082452a54: Already exists
27454b3e44fc: Already exists
cf864090fffc: Already exists
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0961d2e8514c: Already exists
12aa16a25135: Already exists
bcafe58b9eec: Already exists
5fc119aa4d28: Already exists
Digest: sha256:9fdb6b12483b6ee211502cfcdccfa603bc203949c6b28773b62e63598c724d35
Status: Downloaded newer image for ocaml/opam@sha256:9fdb6b12483b6ee211502cfcdccfa603bc203949c6b28773b62e63598c724d35
2026-03-14 11:30.47 ---> using "043878a17430eb7307125489308030a24bcdcad0c95c2a109a9fe14316981ea0" from cache


/: (comment debian-13-5.1_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 11:30.48 ---> using "6b7056ea7ce356ec6f7912a2926e5fd7f883103e1965bfbfd430131165bcd018" 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 11:30.48 ---> using "f3b4b2f6e6b83119a65df9b96ef8caf4b84e2b6810257468cbd6dce3e49df6a5" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-90-generic
The OCaml toplevel, version 5.1.1
2.5.0
2026-03-14 11:30.48 ---> using "40a0d9ebc36b710fd682ab81510657b976df188a86220f6a8b708d8aaef913ed" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-03-14 11:30.48 ---> using "56298b29b720efd320488445e8fb128d0a2092645b72583f0283bb88d649e5f8" 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
ffb54b9bdd..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 11:30.48 ---> using "61ad036638cab90d6b3431b885e126fdd4bae9c64c7f3d1f203dc22b499149c8" from cache


/src: (copy (src lwt_eio.opam) (dst ./))
2026-03-14 11:30.48 ---> using "e362e2ef3602bad4369011cb140b50545e609ab9d0857b8984c0531c260dd522" from cache


/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 11:30.49 ---> saved as "1f88e6922f3a633060749b3dba1bf8b58f3de83474628aefbb09e750b68e4e70"


/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-03-14 11:30.50 ---> saved as "9789a9865de7d79698a7a607eab79ffc3c24e21f267a55a2e36503f32d5a65e6"


/src: (env DEPS "astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-nnp.base base-threads.base base-unix.base bigarray-compat.1.1.0 bigstringaf.0.9.0 camlp-streams.5.0.1 cmdliner.1.3.0 conf-pkg-config.1.0 cppo.1.6.6 csexp.1.3.2 cstruct.6.0.1 domain-local-await.0.1.0 dune.3.10.0 dune-configurator.2.9.3 eio.0.13 eio_linux.0.13 eio_main.0.13 eio_posix.0.13 fmt.0.9.0 hmap.0.8.1 iomux.0.2 logs.0.7.0 lwt.5.7.0 lwt-dllist.1.0.0 mdx.2.3.1 mtime.2.1.0 ocaml.5.1.1 ocaml-base-compiler.5.1.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.3.5.0 ocamlbuild.0.14.2 ocamlfind.1.9.6 ocplib-endian.1.1 optint.0.3.0 psq.0.2.0 re.1.9.0 result.1.5 seq.0.3 topkg.1.0.8 uring.0.7")


/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 (736 kB/s)
- 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-base-compiler is already installed (current version is 5.1.1).
[NOTE] Package ocaml is already installed (current version is 5.1.1).
[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 system packages will first need to be installed:
pkg-config


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


+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "pkg-config"
- Selecting previously unselected package libpkgconf3:amd64.
- (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 20654 files and directories currently installed.)
- Preparing to unpack .../libpkgconf3_1.8.1-4_amd64.deb ...
- Unpacking libpkgconf3:amd64 (1.8.1-4) ...
- Selecting previously unselected package pkgconf-bin.
- Preparing to unpack .../pkgconf-bin_1.8.1-4_amd64.deb ...
- Unpacking pkgconf-bin (1.8.1-4) ...
- Selecting previously unselected package pkgconf:amd64.
- Preparing to unpack .../pkgconf_1.8.1-4_amd64.deb ...
- Unpacking pkgconf:amd64 (1.8.1-4) ...
- Selecting previously unselected package pkg-config:amd64.
- Preparing to unpack .../pkg-config_1.8.1-4_amd64.deb ...
- Unpacking pkg-config:amd64 (1.8.1-4) ...
- Setting up libpkgconf3:amd64 (1.8.1-4) ...
- Setting up pkgconf-bin (1.8.1-4) ...
- Setting up pkgconf:amd64 (1.8.1-4) ...
- Setting up pkg-config:amd64 (1.8.1-4) ...
- Processing triggers for libc-bin (2.41-12+deb13u1) ...
# To update the current shell environment, run: eval $(opam env)
2026-03-14 11:31.19 ---> saved as "4146891462e613fde5c1db7ab0ea47470244ecdc0c06e339d3fbab8ffa0e7629"


/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 5.1.1).
[NOTE] Package ocaml is already installed (current version is 5.1.1).
[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 36 packages
- install astring            0.8.5
- install base-bytes         base
- install bigarray-compat    1.1.0
- install bigstringaf        0.9.0
- install camlp-streams      5.0.1
- install cmdliner           1.3.0
- install conf-pkg-config    1.0
- install cppo               1.6.6
- install csexp              1.3.2
- install cstruct            6.0.1
- install domain-local-await 0.1.0
- install dune               3.10.0
- install dune-configurator  2.9.3
- install eio                0.13
- install eio_linux          0.13
- install eio_main           0.13
- install eio_posix          0.13
- install fmt                0.9.0
- install hmap               0.8.1
- install iomux              0.2
- install logs               0.7.0
- install lwt                5.7.0
- install lwt-dllist         1.0.0
- install mdx                2.3.1
- install mtime              2.1.0
- install ocaml-version      3.5.0
- install ocamlbuild         0.14.2
- install ocamlfind          1.9.6
- install ocplib-endian      1.1
- install optint             0.3.0
- install psq                0.2.0
- install re                 1.9.0
- install result             1.5
- install seq                0.3
- install topkg              1.0.8
- install uring              0.7


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved astring.0.8.5  (cached)
-> retrieved bigarray-compat.1.1.0  (cached)
-> retrieved bigstringaf.0.9.0  (cached)
-> retrieved camlp-streams.5.0.1  (cached)
-> installed conf-pkg-config.1.0
-> retrieved cppo.1.6.6  (cached)
-> retrieved csexp.1.3.2  (cached)
-> retrieved cmdliner.1.3.0  (cached)
-> retrieved cstruct.6.0.1  (cached)
-> retrieved domain-local-await.0.1.0  (cached)
-> retrieved eio.0.13, eio_linux.0.13, eio_main.0.13, eio_posix.0.13  (cached)
-> retrieved fmt.0.9.0  (cached)
-> retrieved hmap.0.8.1  (cached)
-> retrieved iomux.0.2  (cached)
-> retrieved logs.0.7.0  (cached)
-> retrieved lwt.5.7.0  (cached)
-> retrieved lwt-dllist.1.0.0  (cached)
-> retrieved dune-configurator.2.9.3  (cached)
-> retrieved dune.3.10.0  (cached)
-> retrieved mdx.2.3.1  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved ocaml-version.3.5.0  (cached)
-> retrieved ocamlbuild.0.14.2  (cached)
-> retrieved ocamlfind.1.9.6  (cached)
-> retrieved ocplib-endian.1.1  (cached)
-> retrieved optint.0.3.0  (cached)
-> retrieved psq.0.2.0  (cached)
-> retrieved result.1.5  (cached)
-> retrieved seq.0.3  (cached)
-> retrieved re.1.9.0  (cached)
-> retrieved topkg.1.0.8  (cached)
-> retrieved uring.0.7  (cached)
-> installed cmdliner.1.3.0
-> installed ocamlfind.1.9.6
-> installed base-bytes.base
-> installed ocamlbuild.0.14.2
-> installed topkg.1.0.8
-> installed hmap.0.8.1
-> installed mtime.2.1.0
-> installed fmt.0.9.0
-> installed astring.0.8.5
-> installed dune.3.10.0
-> installed result.1.5
-> installed domain-local-await.0.1.0
-> installed seq.0.3
-> installed bigarray-compat.1.1.0
-> installed bigstringaf.0.9.0
-> installed ocaml-version.3.5.0
-> installed optint.0.3.0
-> installed camlp-streams.5.0.1
-> installed csexp.1.3.2
-> installed psq.0.2.0
-> installed cstruct.6.0.1
-> installed cppo.1.6.6
-> installed re.1.9.0
-> installed ocplib-endian.1.1
-> installed dune-configurator.2.9.3
-> installed iomux.0.2
-> installed uring.0.7
-> installed lwt.5.7.0
-> installed lwt-dllist.1.0.0
-> installed logs.0.7.0
-> installed eio.0.13
-> installed eio_linux.0.13
-> installed eio_posix.0.13
-> installed eio_main.0.13
-> installed mdx.2.3.1
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-14 11:33.38 ---> saved as "b468e5a02a066d2bdc9a753518411a7fbdada339b5564c479054bb6b885f6805"


/src: (copy (src .) (dst /src))
2026-03-14 11:33.39 ---> saved as "4db72a012517bbf03d8062dd5d95c78ef1a7fab561063098abda57b21ada2572"


/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
(cd _build/default && /home/opam/.opam/5.1/bin/ocamlopt.opt -w @1..3@5..28@30..39@43@46..47@49..57@61..62@67@69-40 -strict-sequence -strict-formats -short-paths -keep-locs -g -I lib/.lwt_eio.objs/byte -I lib/.lwt_eio.objs/native -I /home/opam/.opam/5.1/lib/bigarray-compat -I /home/opam/.opam/5.1/lib/bigstringaf -I /home/opam/.opam/5.1/lib/bytes -I /home/opam/.opam/5.1/lib/cstruct -I /home/opam/.opam/5.1/lib/domain-local-await -I /home/opam/.opam/5.1/lib/eio -I /home/opam/.opam/5.1/lib/eio/core -I /home/opam/.opam/5.1/lib/eio/runtime_events -I /home/opam/.opam/5.1/lib/eio/unix -I /home/opam/.opam/5.1/lib/eio/utils -I /home/opam/.opam/5.1/lib/fmt -I /home/opam/.opam/5.1/lib/hmap -I /home/opam/.opam/5.1/lib/lwt -I /home/opam/.opam/5.1/lib/lwt-dllist -I /home/opam/.opam/5.1/lib/lwt/unix -I /home/opam/.opam/5.1/lib/mtime -I /home/opam/.opam/5.1/lib/mtime/clock -I /home/opam/.opam/5.1/lib/ocaml/runtime_events -I /home/opam/.opam/5.1/lib/ocaml/threads -I /home/opam/.opam/5.1/lib/ocaml/unix -I /home/opam/.opam/5.1/lib/ocplib-endian -I /home/opam/.opam/5.1/lib/ocplib-endian/bigstring -I /home/opam/.opam/5.1/lib/optint -I /home/opam/.opam/5.1/lib/psq -I /home/opam/.opam/5.1/lib/seq -intf-suffix .ml -no-alias-deps -opaque -o lib/.lwt_eio.objs/native/lwt_eio.cmx -c -impl lib/lwt_eio.ml)
File "lib/lwt_eio.ml", line 126, characters 5-25:
126 | type Lwt_engine.engine_id += Engine_id__Eio_lwt
^^^^^^^^^^^^^^^^^^^^
Error: Unbound type constructor Lwt_engine.engine_id
(cd _build/default && /home/opam/.opam/5.1/bin/ocamlc.opt -w @1..3@5..28@30..39@43@46..47@49..57@61..62@67@69-40 -strict-sequence -strict-formats -short-paths -keep-locs -g -bin-annot -I lib/.lwt_eio.objs/byte -I /home/opam/.opam/5.1/lib/bigarray-compat -I /home/opam/.opam/5.1/lib/bigstringaf -I /home/opam/.opam/5.1/lib/bytes -I /home/opam/.opam/5.1/lib/cstruct -I /home/opam/.opam/5.1/lib/domain-local-await -I /home/opam/.opam/5.1/lib/eio -I /home/opam/.opam/5.1/lib/eio/core -I /home/opam/.opam/5.1/lib/eio/runtime_events -I /home/opam/.opam/5.1/lib/eio/unix -I /home/opam/.opam/5.1/lib/eio/utils -I /home/opam/.opam/5.1/lib/fmt -I /home/opam/.opam/5.1/lib/hmap -I /home/opam/.opam/5.1/lib/lwt -I /home/opam/.opam/5.1/lib/lwt-dllist -I /home/opam/.opam/5.1/lib/lwt/unix -I /home/opam/.opam/5.1/lib/mtime -I /home/opam/.opam/5.1/lib/mtime/clock -I /home/opam/.opam/5.1/lib/ocaml/runtime_events -I /home/opam/.opam/5.1/lib/ocaml/threads -I /home/opam/.opam/5.1/lib/ocaml/unix -I /home/opam/.opam/5.1/lib/ocplib-endian -I /home/opam/.opam/5.1/lib/ocplib-endian/bigstring -I /home/opam/.opam/5.1/lib/optint -I /home/opam/.opam/5.1/lib/psq -I /home/opam/.opam/5.1/lib/seq -intf-suffix .ml -no-alias-deps -opaque -o lib/.lwt_eio.objs/byte/lwt_eio.cmo -c -impl lib/lwt_eio.ml)
File "lib/lwt_eio.ml", line 126, characters 5-25:
126 | type Lwt_engine.engine_id += Engine_id__Eio_lwt
^^^^^^^^^^^^^^^^^^^^
Error: Unbound type constructor Lwt_engine.engine_id
"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2026-03-14 11:33.42: Job failed: Failed: Build failed