debian-13-5.4_riscv64_opam-2.5

2026-04-16 16:38.21: New job: test ocaml-multicore/eio https://github.com/ocaml-multicore/eio.git#refs/pull/836/head (807ad3dd0c60e1892dae71706411eac219bbfb7c) (linux-riscv64:debian-13-5.4_riscv64_opam-2.5)
Base: ocaml/opam:debian-13-ocaml-5.4@sha256:f4c82456e10adf78c4bf1849b05a8072cede5c2008b962470255ffcd8dbe88d2
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/ocaml-multicore/eio.git" && cd "eio" && git fetch origin "refs/pull/836/head" && git reset --hard 807ad3dd
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4@sha256:f4c82456e10adf78c4bf1849b05a8072cede5c2008b962470255ffcd8dbe88d2
# debian-13-5.4_riscv64_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 eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam ./
RUN opam pin add -yn eio_windows.dev './' && \
opam pin add -yn eio_posix.dev './' && \
opam pin add -yn eio_main.dev './' && \
opam pin add -yn eio_linux.dev './' && \
opam pin add -yn eio.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="afl-persistent.1.4 alcotest.1.9.1 astring.0.8.5 backoff.0.1.1 base-bigarray.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 conf-bash.1 containers.3.18 cppo.1.8.0 crowbar.0.2.2 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 domain-local-timeout.1.0.1 dscheck.0.5.0 dune.3.22.2 dune-configurator.3.22.2 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 logs.0.10.0 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.14.0 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uring.0.9 uutf.1.0.4 yojson.3.0.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.5 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio_linux.dev 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


2026-04-16 16:38.21: Using cache hint "ocaml-multicore/eio-ocaml/opam:debian-13-ocaml-5.4@sha256:f4c82456e10adf78c4bf1849b05a8072cede5c2008b962470255ffcd8dbe88d2-debian-13-5.4_riscv64_opam-2.5-97cd35557dfb4961f47154f17b0841c7"
2026-04-16 16:38.21: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4@sha256:f4c82456e10adf78c4bf1849b05a8072cede5c2008b962470255ffcd8dbe88d2)
(comment debian-13-5.4_riscv64_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 eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam)
(dst ./))
(run (network host)
(shell  "opam pin add -yn eio_windows.dev './' && \
\nopam pin add -yn eio_posix.dev './' && \
\nopam pin add -yn eio_main.dev './' && \
\nopam pin add -yn eio_linux.dev './' && \
\nopam pin add -yn eio.dev './'"))
(run (shell "echo '(lang dune 3.0)' > './dune-project'"))
(env DEPS "afl-persistent.1.4 alcotest.1.9.1 astring.0.8.5 backoff.0.1.1 base-bigarray.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 conf-bash.1 containers.3.18 cppo.1.8.0 crowbar.0.2.2 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 domain-local-timeout.1.0.1 dscheck.0.5.0 dune.3.22.2 dune-configurator.3.22.2 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 logs.0.10.0 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.14.0 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uring.0.9 uutf.1.0.4 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=2.5 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio_linux.dev 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"))
)


2026-04-16 16:38.21: Waiting for resource in pool OCluster
2026-04-16 16:38.21: Waiting for worker…
2026-04-17 10:09.21: Got resource from pool OCluster
Building on riscv-bm-03.sw.ci.dev
All commits already cached
HEAD is now at 807ad3d Make Linux and Posix eventfd functions configurable


(from ocaml/opam:debian-13-ocaml-5.4@sha256:f4c82456e10adf78c4bf1849b05a8072cede5c2008b962470255ffcd8dbe88d2)
Unable to find image 'ocaml/opam:debian-13-ocaml-5.4@sha256:f4c82456e10adf78c4bf1849b05a8072cede5c2008b962470255ffcd8dbe88d2' locally
docker.io/ocaml/opam@sha256:f4c82456e10adf78c4bf1849b05a8072cede5c2008b962470255ffcd8dbe88d2: Pulling from ocaml/opam
3e61abfb88ee: Already exists
76b1d07b1a3b: Already exists
ed0a77094d87: Already exists
dda49bd8ac08: Already exists
79841c38fc3d: Already exists
e23fd9439732: Already exists
269e9966d790: Already exists
52cc4e5d6121: Already exists
805e105b52dc: Already exists
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ba1024a7802c: Already exists
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4efed90b2a45: Already exists
fc9321643256: Already exists
892336fe0a02: Already exists
892336fe0a02: Already exists
bea8863f3ee4: Already exists
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e3cdf819ebd9: Already exists
cc5f28ef7662: Already exists
4f4fb700ef54: Already exists
d67f67cce0c9: Already exists
254dc46749bc: Already exists
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414badea72c2: Already exists
dca5542c6a6c: Already exists
d11abfe346ed: Already exists
850f5f345d4f: Already exists
45a44aaebcc9: Already exists
1560e6818fb1: Pulling fs layer
e1c0adedaeec: Pulling fs layer
716945da171a: Pulling fs layer
dbaa1f0ec53c: Pulling fs layer
b4a0ec97be31: Pulling fs layer
ac156bfd6092: Pulling fs layer
0b5fd1110f83: Pulling fs layer
b4a0ec97be31: Waiting
ac156bfd6092: Waiting
dbaa1f0ec53c: Waiting
0b5fd1110f83: Waiting
1560e6818fb1: Verifying Checksum
1560e6818fb1: Download complete
e1c0adedaeec: Verifying Checksum
e1c0adedaeec: Download complete
716945da171a: Verifying Checksum
716945da171a: Download complete
1560e6818fb1: Pull complete
e1c0adedaeec: Pull complete
b4a0ec97be31: Verifying Checksum
b4a0ec97be31: Download complete
ac156bfd6092: Verifying Checksum
ac156bfd6092: Download complete
0b5fd1110f83: Download complete
716945da171a: Pull complete
dbaa1f0ec53c: Verifying Checksum
dbaa1f0ec53c: Download complete
dbaa1f0ec53c: Pull complete
b4a0ec97be31: Pull complete
ac156bfd6092: Pull complete
0b5fd1110f83: Pull complete
Digest: sha256:f4c82456e10adf78c4bf1849b05a8072cede5c2008b962470255ffcd8dbe88d2
Status: Downloaded newer image for ocaml/opam@sha256:f4c82456e10adf78c4bf1849b05a8072cede5c2008b962470255ffcd8dbe88d2
2026-04-17 10:09.22 ---> using "484c9fa6139706b8afa9764d3652fd702882e8e5056f93677166c9b0844fd477" from cache


/: (comment debian-13-5.4_riscv64_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"))
2026-04-17 10:09.22 ---> using "e3fcd17677c90ac2badefc4393aa347c1e93834183d635a58d0a18813c0c1cf1" 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
2026-04-17 10:09.22 ---> using "42cf30aa206babc6ffd1b40cb1eabcdb67ddeeb803e5b9fba84bc3e9e8f2948d" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 5.10.113-scw1
The OCaml toplevel, version 5.4.1
2.5.0
2026-04-17 10:09.22 ---> using "204e85d4f615e24dd02cc13f1e4e8326d5e39b1662e210cce7aafc479b511e97" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-04-17 10:09.22 ---> using "c5b3cebc9752b51849933feed0e5e6313e53b598d28fd4f67c68d439427a305a" 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
42844088d7..0b0acbee05  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
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)
2026-04-17 10:09.22 ---> using "86b3499a19d7c33216688ea31ff71804a9b15f85eeacc47939e250563d7d8bbc" from cache


/src: (copy (src eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam)
(dst ./))
2026-04-17 10:09.22 ---> using "5121ea0f974f65169f1fec3badb2ea622503a05a8547d92fd5959c06df893a51" from cache


/src: (run (network host)
(shell  "opam pin add -yn eio_windows.dev './' && \
\nopam pin add -yn eio_posix.dev './' && \
\nopam pin add -yn eio_main.dev './' && \
\nopam pin add -yn eio_linux.dev './' && \
\nopam pin add -yn eio.dev './'"))
[eio_windows.dev] synchronised (file:///src)
eio_windows is now pinned to file:///src (version dev)
[eio_posix.dev] synchronised (file:///src)
eio_posix is now pinned to file:///src (version dev)
[eio_main.dev] synchronised (file:///src)
eio_main is now pinned to file:///src (version dev)
[eio_linux.dev] synchronised (file:///src)
eio_linux is now pinned to file:///src (version dev)
[eio.dev] synchronised (file:///src)
eio is now pinned to file:///src (version dev)
2026-04-17 10:09.22 ---> using "67de8da732fa65c308da9a5d51ad8e2e4c7c72d328e9e5b17958f3bf41235401" from cache


/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-04-17 10:09.22 ---> using "87d6322a5b81586966d30410c0f72818305dadbb0374cbdc0b74352d1b874116" from cache


/src: (env DEPS "afl-persistent.1.4 alcotest.1.9.1 astring.0.8.5 backoff.0.1.1 base-bigarray.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 conf-bash.1 containers.3.18 cppo.1.8.0 crowbar.0.2.2 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 domain-local-timeout.1.0.1 dscheck.0.5.0 dune.3.22.2 dune-configurator.3.22.2 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 logs.0.10.0 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.14.0 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uring.0.9 uutf.1.0.4 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=2.5 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio_linux.dev 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 riscv64 Packages [116 kB]
- Fetched 207 kB in 9s (23.7 kB/s)
- Reading package lists...
- 


<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[eio.dev] synchronised (file:///src)
[eio_linux.dev] synchronised (file:///src)
[eio_main.dev] synchronised (file:///src)
[eio_posix.dev] synchronised (file:///src)
[eio_windows.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 5.4.1).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.1).
[NOTE] Package ocaml is already installed (current version is 5.4.1).
[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-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)
2026-04-17 10:09.22 ---> using "0786daec2f0c106652f90dbde0cdf1b82533122bff5635ac5b1ba1f13cf697b3" 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 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.4.1).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.1).
[NOTE] Package ocaml is already installed (current version is 5.4.1).
[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-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 45 packages
- install afl-persistent       1.4
- install alcotest             1.9.1
- install astring              0.8.5
- install backoff              0.1.1
- install bigstringaf          0.10.0
- install camlp-streams        5.0.1
- install cmdliner             2.1.0
- install conf-bash            1
- install containers           3.18
- install cppo                 1.8.0
- install crowbar              0.2.2
- install csexp                1.5.2
- install cstruct              6.2.0
- install domain-local-await   1.0.1
- install domain-local-timeout 1.0.1
- install dscheck              0.5.0
- install dune                 3.22.2
- install dune-configurator    3.22.2
- install either               1.0.0
- install fmt                  0.11.0
- install hmap                 0.8.1
- install iomux                0.4
- install kcas                 0.7.0
- install logs                 0.10.0
- install lwt-dllist           1.1.0
- install mdx                  2.5.2
- install mtime                2.1.0
- install multicore-magic      2.3.2
- install ocaml-syntax-shims   1.0.0
- install ocaml-version        4.0.4
- install ocamlbuild           0.16.1
- install ocamlfind            1.9.8
- install optint               0.3.0
- install oseq                 0.5.1
- install psq                  0.2.1
- install re                   1.14.0
- install result               1.5
- install seq                  base
- install stdlib-shims         0.3.0
- install thread-table         1.0.0
- install topkg                1.1.1
- install tsort                2.2.0
- install uring                0.9
- install uutf                 1.0.4
- install yojson               3.0.0


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved afl-persistent.1.4  (cached)
-> retrieved alcotest.1.9.1  (cached)
-> retrieved astring.0.8.5  (cached)
-> retrieved backoff.0.1.1  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved camlp-streams.5.0.1  (cached)
-> installed conf-bash.1
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved crowbar.0.2.2  (cached)
-> retrieved containers.3.18  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved cstruct.6.2.0  (cached)
-> retrieved domain-local-await.1.0.1  (cached)
-> retrieved domain-local-timeout.1.0.1  (cached)
-> retrieved dscheck.0.5.0  (cached)
-> retrieved either.1.0.0  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved hmap.0.8.1  (cached)
-> retrieved iomux.0.4  (cached)
-> retrieved kcas.0.7.0  (cached)
-> retrieved logs.0.10.0  (cached)
-> retrieved lwt-dllist.1.1.0  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved multicore-magic.2.3.2  (cached)
-> retrieved mdx.2.5.2  (cached)
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
-> retrieved ocaml-version.4.0.4  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved optint.0.3.0  (cached)
-> retrieved oseq.0.5.1  (cached)
-> retrieved psq.0.2.1  (cached)
-> retrieved re.1.14.0  (cached)
-> retrieved seq.base  (cached)
-> retrieved result.1.5  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved thread-table.1.0.0  (cached)
-> retrieved tsort.2.2.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved uutf.1.0.4  (cached)
-> retrieved uring.0.9  (cached)
-> retrieved yojson.3.0.0  (cached)
-> retrieved dune.3.22.2, dune-configurator.3.22.2  (cached)
-> installed cmdliner.2.1.0
-> installed ocamlbuild.0.16.1
-> installed seq.base
-> installed ocamlfind.1.9.8
-> installed topkg.1.1.1
-> installed fmt.0.11.0
-> installed astring.0.8.5
-> installed hmap.0.8.1
-> installed logs.0.10.0
-> installed mtime.2.1.0
-> installed uutf.1.0.4
-> installed dune.3.22.2
-> installed afl-persistent.1.4
-> installed backoff.0.1.1
-> installed camlp-streams.5.0.1
-> installed crowbar.0.2.2
-> installed csexp.1.5.2
-> installed either.1.0.0
-> installed cppo.1.8.0
-> installed cstruct.6.2.0
-> installed lwt-dllist.1.1.0
-> installed multicore-magic.2.3.2
-> installed ocaml-version.4.0.4
-> installed optint.0.3.0
-> installed dune-configurator.3.22.2
-> installed oseq.0.5.1
-> installed ocaml-syntax-shims.1.0.0
-> installed psq.0.2.1
-> installed bigstringaf.0.10.0
-> installed iomux.0.4
-> installed result.1.5
-> installed stdlib-shims.0.3.0
-> installed thread-table.1.0.0
-> installed tsort.2.2.0
-> installed domain-local-await.1.0.1
-> installed re.1.14.0
-> installed domain-local-timeout.1.0.1
-> installed alcotest.1.9.1
-> installed containers.3.18
-> installed kcas.0.7.0
-> installed dscheck.0.5.0
-> installed uring.0.9
-> installed yojson.3.0.0
-> installed mdx.2.5.2
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 5.4.1+afl ocaml-variants.5.4.1+options ocaml-option-afl
# To update the current shell environment, run: eval $(opam env)
2026-04-17 10:09.22 ---> using "0344cf9fc60234b7a551c5920d525b641e74909c472daab86010b91324528c34" from cache


/src: (copy (src .) (dst /src))
2026-04-17 10:09.23 ---> saved as "e4b0026f5e4100c6181a1c30df48a3faf652500233b2bbaf542736aeab981350"


/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
(cd _build/default/fuzz && ./fuzz_inherit_fds.exe)
inherit_fds: PASS


(cd _build/default/fuzz && ./fuzz_buf_read.exe)
random ops: PASS


(cd _build/default/fuzz && ./fuzz_buf_write.exe)
random ops: PASS


File "lib_eio_linux/tests/fd_sharing.md", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/lib_eio_linux/tests/fd_sharing.md _build/default/lib_eio_linux/tests/.mdx/fd_sharing.md.corrected
diff --git a/_build/default/lib_eio_linux/tests/fd_sharing.md b/_build/default/lib_eio_linux/tests/.mdx/fd_sharing.md.corrected
index bf8230b..2b51e12 100644
--- a/_build/default/lib_eio_linux/tests/fd_sharing.md
+++ b/_build/default/lib_eio_linux/tests/.mdx/fd_sharing.md.corrected
@@ -51,11 +51,5 @@ One domain closes an FD after another domain has enqueued a uring operation ment
(* Allow the read to complete. *)
Eio.Flow.close w
);;
-+Domain 1 enqueuing read on FD
-+Waiting for domain 0...
-+Domain 0 closing FD
-+Domain 0 closed FD; waking domain 1
-+Domain 1 flushing queue
-+Read EOF
-- : unit = ()
+Exception: Failure "Linux >= 5.15 is required for io_uring support".
```
File "lib_eio_linux/tests/spawn.md", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/lib_eio_linux/tests/spawn.md _build/default/lib_eio_linux/tests/.mdx/spawn.md.corrected
diff --git a/_build/default/lib_eio_linux/tests/spawn.md b/_build/default/lib_eio_linux/tests/.mdx/spawn.md.corrected
index 8d45211..b6bbe7b 100644
--- a/_build/default/lib_eio_linux/tests/spawn.md
+++ b/_build/default/lib_eio_linux/tests/.mdx/spawn.md.corrected
@@ -21,8 +21,7 @@ Setting environment variables:
~env:[| "FOO=bar" |];
] in
Promise.await (Process.exit_status child);;
-FOO=bar
-- : Unix.process_status = Unix.WEXITED 0
+Exception: Failure "Linux >= 5.15 is required for io_uring support".
```


Changing directory:
@@ -37,8 +36,7 @@ Changing directory:
~env:(Unix.environment ())
] in
Promise.await (Process.exit_status child);;
-/
-- : Unix.process_status = Unix.WEXITED 0
+Exception: Failure "Linux >= 5.15 is required for io_uring support".
```


Changing directory using a file descriptor:
@@ -61,8 +59,7 @@ Changing directory using a file descriptor:
~env:(Unix.environment ())
] in
Promise.await (Process.exit_status child);;
-/
-- : Unix.process_status = Unix.WEXITED 0
+Exception: Failure "Linux >= 5.15 is required for io_uring support".
```


Exit status:
@@ -76,7 +73,7 @@ Exit status:
~env:(Unix.environment ())
] in
Promise.await (Process.exit_status child);;
-- : Unix.process_status = Unix.WEXITED 1
+Exception: Failure "Linux >= 5.15 is required for io_uring support".
```


Failure starting child:
@@ -96,7 +93,7 @@ Failure starting child:
assert false
with Failure ex ->
String.sub ex 0 7
-- : string = "chdir: "
+Exception: Failure "Linux >= 5.15 is required for io_uring support".
```


Signalling a running child:
@@ -115,8 +112,7 @@ Signalling a running child:
match Promise.await (Process.exit_status child) with
| Unix.WSIGNALED x when x = Sys.sigkill -> traceln "Child got SIGKILL"
| _ -> assert false;;
-+Child got SIGKILL
-- : unit = ()
+Exception: Failure "Linux >= 5.15 is required for io_uring support".
```


Signalling an exited child does nothing:
@@ -133,6 +129,5 @@ Signalling an exited child does nothing:
in
ignore (Promise.await (Process.exit_status child) : Unix.process_status);
Process.signal child Sys.sigkill;;
-FOO=bar
-- : unit = ()
+Exception: Failure "Linux >= 5.15 is required for io_uring support".
```
File "lib_eio_linux/tests/dune", line 42, characters 7-11:
42 |  (name test)
^^^^
(cd _build/default/lib_eio_linux/tests && ./test.exe)
Testing `eio_linux'.
This run has ID `UID1IMML'.


[FAIL]        io          0   copy.
[FAIL]        io          1   direct_copy.
[FAIL]        io          2   poll_add.
[FAIL]        io          3   poll_add_busy.
[FAIL]        io          4   iovec.
[FAIL]        io          5   no_sqe.
[FAIL]        io          6   read_exact.
[FAIL]        io          7   expose_backend.
[FAIL]        io          8   statx.
[FAIL]        io          9   signal_race.
[FAIL]        io         10   alloc-fixed-or-wait.


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io          0   copy.                                          │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.000.output'.
──────────────────────────────────────────────────────────────────────────────


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io          1   direct_copy.                                   │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.001.output'.
──────────────────────────────────────────────────────────────────────────────


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io          2   poll_add.                                      │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.002.output'.
──────────────────────────────────────────────────────────────────────────────


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io          3   poll_add_busy.                                 │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.003.output'.
──────────────────────────────────────────────────────────────────────────────


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io          4   iovec.                                         │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.004.output'.
──────────────────────────────────────────────────────────────────────────────


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io          5   no_sqe.                                        │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Dune__exe__Test.test_no_sqe in file "lib_eio_linux/tests/test.ml", lines 116-125, characters 4-14
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.005.output'.
──────────────────────────────────────────────────────────────────────────────


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io          6   read_exact.                                    │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.006.output'.
──────────────────────────────────────────────────────────────────────────────


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io          7   expose_backend.                                │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.007.output'.
──────────────────────────────────────────────────────────────────────────────


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io          8   statx.                                         │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.008.output'.
──────────────────────────────────────────────────────────────────────────────


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io          9   signal_race.                                   │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.009.output'.
──────────────────────────────────────────────────────────────────────────────


┌──────────────────────────────────────────────────────────────────────────────┐
│ [FAIL]        io         10   alloc-fixed-or-wait.                           │
└──────────────────────────────────────────────────────────────────────────────┘
[failure] Linux >= 5.15 is required for io_uring support
Raised at Stdlib.failwith in file "stdlib.ml", line 29, characters 17-33
Called from Alcotest_engine__Core.Make.protect_test.(fun) in file "src/alcotest-engine/core.ml", line 186, characters 17-23
Called from Alcotest_engine__Monad.Identity.catch in file "src/alcotest-engine/monad.ml", line 24, characters 31-35


Logs saved to `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux/io.010.output'.
──────────────────────────────────────────────────────────────────────────────


Full test results in `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux'.
11 failures! in 0.021s. 11 tests run.
"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2026-04-17 10:10.50: Job failed: Failed: Build failed