fedora-42-5.4_opam-2.5

2026-06-06 07:12.12: New job: test ocaml-multicore/eio https://github.com/ocaml-multicore/eio.git#refs/pull/850/head (fea7ecbc7698e4343680936ddc7b10804533d347) (linux-x86_64:fedora-42-5.4_opam-2.5)
Base: ocaml/opam:fedora-42-ocaml-5.4@sha256:9e498c091d92dd2296c9706f4249455c4caf6aa97e22da0691cc59274d3ec32d
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/ocaml-multicore/eio.git" && cd "eio" && git fetch origin "refs/pull/850/head" && git reset --hard fea7ecbc
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:fedora-42-ocaml-5.4@sha256:9e498c091d92dd2296c9706f4249455c4caf6aa97e22da0691cc59274d3ec32d
# fedora-42-5.4_opam-2.5
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo dnf install -y findutils
RUN sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam
RUN cd ~/opam-repository && (git cat-file -e c98b21e24c088665ccae4c3b53eadadd3b755b15 || git fetch origin master) && git reset -q --hard c98b21e24c088665ccae4c3b53eadadd3b755b15 && git log --no-decorate -n1 --oneline
RUN opam init --reinit -ni
RUN uname -rs && opam exec -- ocaml -version && opam --version
WORKDIR /src
RUN sudo chown opam /src
RUN 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.2.1.1 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.3.23.1 dune-configurator.3.23.1 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 lintcstubs-arity.0.5.2 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.4.1.1 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.2.14.0 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


2026-06-06 07:12.12: Using cache hint "ocaml-multicore/eio-ocaml/opam:fedora-42-ocaml-5.4@sha256:9e498c091d92dd2296c9706f4249455c4caf6aa97e22da0691cc59274d3ec32d-fedora-42-5.4_opam-2.5-12c456a1f67161cdda644e9d789b7618"
2026-06-06 07:12.12: Using OBuilder spec:
((from ocaml/opam:fedora-42-ocaml-5.4@sha256:9e498c091d92dd2296c9706f4249455c4caf6aa97e22da0691cc59274d3ec32d)
(comment fedora-42-5.4_opam-2.5)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(workdir /src)
(run (network host)
(shell "sudo dnf install -y findutils"))
(run (shell "sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e c98b21e24c088665ccae4c3b53eadadd3b755b15 || git fetch origin master) && git reset -q --hard c98b21e24c088665ccae4c3b53eadadd3b755b15 && git log --no-decorate -n1 --oneline"))
(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 "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.2.1.1 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.3.23.1 dune-configurator.3.23.1 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 lintcstubs-arity.0.5.2 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.4.1.1 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.2.14.0 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"))
)


2026-06-06 07:12.12: Waiting for resource in pool OCluster
2026-06-06 07:12.12: Waiting for worker…
2026-06-06 11:58.33: Got resource from pool OCluster
Building on eumache.caelum.ci.dev
All commits already cached
HEAD is now at fea7ecb add ftruncate/fdatasync and use uring for fsync


(from ocaml/opam:fedora-42-ocaml-5.4@sha256:9e498c091d92dd2296c9706f4249455c4caf6aa97e22da0691cc59274d3ec32d)
Unable to find image 'ocaml/opam:fedora-42-ocaml-5.4@sha256:9e498c091d92dd2296c9706f4249455c4caf6aa97e22da0691cc59274d3ec32d' locally
docker.io/ocaml/opam@sha256:9e498c091d92dd2296c9706f4249455c4caf6aa97e22da0691cc59274d3ec32d: Pulling from ocaml/opam
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Digest: sha256:9e498c091d92dd2296c9706f4249455c4caf6aa97e22da0691cc59274d3ec32d
Status: Downloaded newer image for ocaml/opam@sha256:9e498c091d92dd2296c9706f4249455c4caf6aa97e22da0691cc59274d3ec32d
2026-06-06 12:01.03 ---> saved as "c6dca2590e73a9b83138662a006a0cf36547c33e4d5c5d4e517553c6590483ef"


/: (comment fedora-42-5.4_opam-2.5)


/: (user (uid 1000) (gid 1000))


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (workdir /src)


/src: (run (network host)
(shell "sudo dnf install -y findutils"))
Updating and loading repositories:
Fedora 42 - x86_64 - Updates           100% |  52.3 KiB/s |  18.3 KiB |  00m00s
Fedora 42 - x86_64                     100% |  87.6 KiB/s |  20.1 KiB |  00m00s
Repositories loaded.
Package "findutils-1:4.10.0-5.fc42.x86_64" is already installed.


Nothing to do.
2026-06-06 12:01.06 ---> saved as "42deed05c88ae8686f33617991b01c3669241f01dd47dc333ea8f523a1e6129e"


/src: (run (shell "sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam"))
2026-06-06 12:01.07 ---> saved as "6314de62e7ef6d28aec92897be74ee215dbb97533ec15e348df22942a850ab66"


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e c98b21e24c088665ccae4c3b53eadadd3b755b15 || git fetch origin master) && git reset -q --hard c98b21e24c088665ccae4c3b53eadadd3b755b15 && git log --no-decorate -n1 --oneline"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
d6a960ed95..c98b21e24c  master     -> origin/master
c98b21e24c Merge pull request #29993 from shonfeder/conditional-mdx-tests
2026-06-06 12:01.16 ---> saved as "4ae6f0331d1015480bdccc12e9fc1771abba46f272c3679c9c01b0a27f6454ef"


/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 2.1 to version 2.2, which can't be reverted.
You may want to back it up before going further.


[NOTE] The 'jobs' option was reset, its value was 1 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=1 --global
Continue? [Y/n] y
Format upgrade done.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] synchronised from git+file:///home/opam/opam-repository
2026-06-06 12:01.31 ---> saved as "f0e2d4b286ac3f3ce593b44e62b8bad377c010cf126195b1809ef3267c477b88"


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-111-generic
The OCaml toplevel, version 5.4.1
2.5.1
2026-06-06 12:01.32 ---> saved as "6ffa81554d511ab23bea9044bf076c5ca1e68622d8ac96408b8c4341aa24e949"


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2026-06-06 12:01.33 ---> saved as "4afe2201b23c32c2bf69f18e29ceaa7e8d4b6a0dc7ac9e6252547784ed2c6650"


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update -u"))


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes from git+file:///home/opam/opam-repository


Everything as up-to-date as possible


The following packages are not being upgraded because the new versions conflict with other installed packages:
- ocaml.5.5.0
- ocaml-compiler.5.4.1+lrgrep
-- ocaml-base-compiler.5.4.1 is installed and requires ocaml-compiler = 5.4.1
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)
2026-06-06 12:01.45 ---> saved as "899d156907135b0dc9c05bf235083158eccf0d35cf40ab8056fccac784470b8a"


/src: (copy (src eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam)
(dst ./))
2026-06-06 12:01.46 ---> saved as "166a3927a729c09a83fe4dcc3a33ebf43174a5fea12771df7b62e7e458b4d4cd"


/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)
2026-06-06 12:01.52 ---> saved as "45c26b5f6cae4c0025fe75575a5cc201ead86e75cc5ef59846adeafb86924b3f"


/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))
2026-06-06 12:01.53 ---> saved as "703bb98c4f5260d1856d53f84d7a9ac0e78a5137a131c3ba1995b287067321c3"


/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.2.1.1 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.3.23.1 dune-configurator.3.23.1 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 lintcstubs-arity.0.5.2 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.4.1.1 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.2.14.0 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/sbin/sudo "yum" "makecache"
- Updating and loading repositories:
- Repositories loaded.
- Metadata cache created.


<><> 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)
2026-06-06 12:02.06 ---> saved as "11ef3b56202b8259e9db6db163258d1fb2297fee5d1b26be8b994f48d0c9ca37"


/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 46 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             2.1.1
- 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                 3.23.1
- install dune-configurator    3.23.1
- 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 lintcstubs-arity     0.5.2
- 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        4.1.1
- 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                2.14.0
- 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 cppo.1.8.0  (cached)
-> retrieved cmdliner.2.1.1  (cached)
-> retrieved crowbar.0.2.2  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved domain-local-await.1.0.1  (cached)
-> retrieved domain-local-timeout.1.0.1  (cached)
-> retrieved dscheck.0.5.0  (cached)
-> retrieved cstruct.6.2.0  (cached)
-> retrieved containers.3.18  (cached)
-> retrieved either.1.0.0  (cached)
-> retrieved hmap.0.8.1  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved iomux.0.4  (cached)
-> retrieved kcas.0.7.0  (cached)
-> retrieved lintcstubs-arity.0.5.2  (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 ocaml-syntax-shims.1.0.0  (cached)
-> retrieved mdx.2.5.2  (cached)
-> retrieved ocaml-version.4.1.1  (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 result.1.5  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved re.1.14.0  (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 yojson.3.0.0  (cached)
-> retrieved uring.2.14.0  (cached)
-> retrieved dune.3.23.1, dune-configurator.3.23.1  (cached)
-> installed cmdliner.2.1.1
-> installed ocamlbuild.0.16.1
-> installed ocamlfind.1.9.8
-> installed topkg.1.1.1
-> installed hmap.0.8.1
-> installed uutf.1.0.4
-> installed mtime.2.1.0
-> installed fmt.0.11.0
-> installed astring.0.8.5
-> installed logs.0.10.0
-> installed dune.3.23.1
-> installed afl-persistent.1.4
-> installed csexp.1.5.2
-> installed backoff.0.1.1
-> installed camlp-streams.5.0.1
-> installed cppo.1.8.0
-> installed cstruct.6.2.0
-> installed either.1.0.0
-> installed lintcstubs-arity.0.5.2
-> installed lwt-dllist.1.1.0
-> installed multicore-magic.2.3.2
-> installed ocaml-syntax-shims.1.0.0
-> installed ocaml-version.4.1.1
-> installed optint.0.3.0
-> installed oseq.0.5.1
-> installed psq.0.2.1
-> installed re.1.14.0
-> installed result.1.5
-> installed stdlib-shims.0.3.0
-> installed thread-table.1.0.0
-> installed tsort.2.2.0
-> installed yojson.3.0.0
-> installed crowbar.0.2.2
-> installed domain-local-timeout.1.0.1
-> installed domain-local-await.1.0.1
-> installed dune-configurator.3.23.1
-> installed kcas.0.7.0
-> installed alcotest.1.9.1
-> installed bigstringaf.0.10.0
-> installed iomux.0.4
-> installed mdx.2.5.2
-> installed containers.3.18
-> installed dscheck.0.5.0
-> installed uring.2.14.0
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)
2026-06-06 12:03.28 ---> saved as "0275c10f5175fa4d1a8b1a5bc8b15a42ef40fb5a64f62ae6b58c0cb2434887d8"


/src: (copy (src .) (dst /src))
2026-06-06 12:03.33 ---> saved as "175b7642e407778c3e79b7557c20811367b00112d4a38b19e053889fc87124ff"


/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
(cd _build/default && /home/opam/.opam/5.4/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 -bin-annot-occurrences -I lib_eio_linux/.eio_linux.objs/byte -I /home/opam/.opam/5.4/lib/bigstringaf -I /home/opam/.opam/5.4/lib/cstruct -I /home/opam/.opam/5.4/lib/domain-local-await -I /home/opam/.opam/5.4/lib/fmt -I /home/opam/.opam/5.4/lib/hmap -I /home/opam/.opam/5.4/lib/lwt-dllist -I /home/opam/.opam/5.4/lib/mtime -I /home/opam/.opam/5.4/lib/mtime/clock -I /home/opam/.opam/5.4/lib/ocaml/runtime_events -I /home/opam/.opam/5.4/lib/ocaml/threads -I /home/opam/.opam/5.4/lib/ocaml/unix -I /home/opam/.opam/5.4/lib/optint -I /home/opam/.opam/5.4/lib/psq -I /home/opam/.opam/5.4/lib/seq -I /home/opam/.opam/5.4/lib/thread-table -I /home/opam/.opam/5.4/lib/uring -I lib_eio/.eio.objs/byte -I lib_eio/core/.eio__core.objs/byte -I lib_eio/runtime_events/.eio_runtime_events.objs/byte -I lib_eio/unix/.eio_unix.objs/byte -I lib_eio/utils/.eio_utils.objs/byte -no-alias-deps -opaque -open Eio_linux__ -o lib_eio_linux/.eio_linux.objs/byte/eio_linux__Low_level.cmi -c -intf lib_eio_linux/low_level.mli)
File "lib_eio_linux/low_level.mli", line 210, characters 22-43:
210 | val fallocate : ?mode:Uring.Fallocate_flags.t -> fd -> off:Optint.Int63.t -> len:Optint.Int63.t -> unit
^^^^^^^^^^^^^^^^^^^^^
Error: Unbound module Uring.Fallocate_flags
(cd _build/default/fuzz && ./fuzz_inherit_fds.exe)
inherit_fds: PASS


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


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


"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2026-06-06 12:03.46: Job failed: Failed: Build failed