Organisations ocaml-multicore eio ac4d94 ()ubuntu-22.04-5.3_opam-2.4
ubuntu-22.04-5.3_opam-2.4

Created at Oct 10 20:14 +00:00
0s in queue
Finished at Oct 10 21:15 +00:00
ac4d94
Ran for 0s
Link Copied
Code Copied
Logs

Show raw logs
2025-10-10 20:14.28: New job: test ocaml-multicore/eio https://github.com/ocaml-multicore/eio.git#refs/pull/575/head (ac4d94964142dbb74f19a4cf08f6a206360bfd0b) (linux-x86_64:ubuntu-22.04-5.3_opam-2.4)
Base: ocaml/opam:ubuntu-22.04-ocaml-5.3@sha256:648f8f28e08bb056edd33d7596374802133dab1f18b42d250619e28e70727bf4
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/ocaml-multicore/eio.git" && cd "eio" && git fetch origin "refs/pull/575/head" && git reset --hard ac4d9496
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-22.04-ocaml-5.3@sha256:648f8f28e08bb056edd33d7596374802133dab1f18b42d250619e28e70727bf4
# ubuntu-22.04-5.3_opam-2.4
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.4 /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 6fab318652edf2e934926c95dbe83c86f899f133 || git fetch origin master) && git reset -q --hard 6fab318652edf2e934926c95dbe83c86f899f133 && 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-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.2.0.0 conf-bash.1 containers.3.16 cppo.1.8.0 crowbar.0.2.1 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.3.20.2 dune-configurator.3.20.2 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 logs.0.9.0 lwt-dllist.1.1.0 mdx.2.5.1 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.3 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 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.1.1.0 tsort.2.2.0 uring.2.7.0 uutf.1.0.4 yojson.3.0.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.4 --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


2025-10-10 20:14.28: Using cache hint "ocaml-multicore/eio-ocaml/opam:ubuntu-22.04-ocaml-5.3@sha256:648f8f28e08bb056edd33d7596374802133dab1f18b42d250619e28e70727bf4-ubuntu-22.04-5.3_opam-2.4-d6f9512a35c9e14e487bcd8fc4c28725"
2025-10-10 20:14.28: Using OBuilder spec:
((from ocaml/opam:ubuntu-22.04-ocaml-5.3@sha256:648f8f28e08bb056edd33d7596374802133dab1f18b42d250619e28e70727bf4)
(comment ubuntu-22.04-5.3_opam-2.4)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(workdir /src)
(run (shell "sudo ln -f /usr/bin/opam-2.4 /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 6fab318652edf2e934926c95dbe83c86f899f133 || git fetch origin master) && git reset -q --hard 6fab318652edf2e934926c95dbe83c86f899f133 && 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 (network host)
(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-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.2.0.0 conf-bash.1 containers.3.16 cppo.1.8.0 crowbar.0.2.1 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.3.20.2 dune-configurator.3.20.2 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 logs.0.9.0 lwt-dllist.1.1.0 mdx.2.5.1 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.3 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 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.1.1.0 tsort.2.2.0 uring.2.7.0 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=2.4 --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"))
)


2025-10-10 20:14.28: Waiting for resource in pool OCluster
2025-10-10 21:11.15: Waiting for worker…
2025-10-10 21:15.00: Got resource from pool OCluster
Building on clete
All commits already cached
HEAD is now at ac4d949 Changes for #575


(from ocaml/opam:ubuntu-22.04-ocaml-5.3@sha256:648f8f28e08bb056edd33d7596374802133dab1f18b42d250619e28e70727bf4)
2025-10-10 21:15.00 ---> using "f9f43f0793e79eeca6d1ecabd3e8700e2e2490761681f205da0d7dcee91233d5" from cache


/: (comment ubuntu-22.04-5.3_opam-2.4)


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


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (workdir /src)


/src: (run (shell "sudo ln -f /usr/bin/opam-2.4 /usr/bin/opam"))
2025-10-10 21:15.00 ---> using "9a881eff57d7916737438142e869753fe2b46e7ab22df51f27fe77ab300d4e31" from cache


/src: (run (shell "opam init --reinit -ni"))
Configuring from /home/opam/.opamrc and then from built-in defaults.
Checking for available remotes: rsync and local, git.
- you won't be able to use mercurial repositories unless you install the hg command on your system.
- you won't be able to use darcs repositories unless you install the darcs command on your system.


This version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted.
You may want to back it up before going further.


Continue? [Y/n] y
[NOTE] The 'jobs' option was reset, its value was 255 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:
opam option jobs=255 --global
Format upgrade done.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2025-10-10 21:15.00 ---> using "5041beb2446e3140f1b2df474acba581438d1ca26fa22084f1b685653932cabb" from cache


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 6.8.0-84-generic
The OCaml toplevel, version 5.3.0
2.4.1
2025-10-10 21:15.00 ---> using "f7539d8b08e3fb639500711f640ead259030accf1a22c5cea677e22d736437fc" from cache


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2025-10-10 21:15.00 ---> using "52ea5bf08af3fff3cae40d4982e5c8acad7e57e5e96c6a931940f55a472bbef8" from cache


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 6fab318652edf2e934926c95dbe83c86f899f133 || git fetch origin master) && git reset -q --hard 6fab318652edf2e934926c95dbe83c86f899f133 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
bcac5d1731..4b164c25f6  master     -> origin/master
6fab318652 Merge pull request #28690 from mtelvers/opam-publish-ocaml-version.4.0.3


<><> 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-base-compiler.5.4.0"), which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2025-10-10 21:15.00 ---> using "86f4fa72a9efa0cdc716fac9b2068cb0c0f61a6f56a3d0f6b1414a3b88c3f203" from cache


/src: (copy (src eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam)
(dst ./))
2025-10-10 21:15.00 ---> using "eef0625d334bbf8441d580b01cc11aedfe1cfa68dab73e531ae6535d0c60ab1c" 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)
2025-10-10 21:15.00 ---> using "b6d1002b643c999a5ad021664db0bf0a5728948600de588ca0095bee44f4ed08" from cache


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-10-10 21:15.00 ---> using "0d02da545889d9f7585492010af7f04e02247caeb15f8185b2e234dd58bd747f" 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-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.2.0.0 conf-bash.1 containers.3.16 cppo.1.8.0 crowbar.0.2.1 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.3.20.2 dune-configurator.3.20.2 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.4 kcas.0.7.0 logs.0.9.0 lwt-dllist.1.1.0 mdx.2.5.1 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.3 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 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.1.1.0 tsort.2.2.0 uring.2.7.0 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=2.4 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio_linux.dev eio.dev $DEPS"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://security.ubuntu.com/ubuntu jammy-security InRelease [129 kB]
- Hit:2 http://archive.ubuntu.com/ubuntu jammy InRelease
- Get:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [128 kB]
- Get:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [127 kB]
- Get:5 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages [5727 kB]
- Get:6 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1276 kB]
- Get:7 http://security.ubuntu.com/ubuntu jammy-security/multiverse amd64 Packages [71.0 kB]
- Get:8 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [3425 kB]
- Get:9 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [5922 kB]
- Get:10 http://archive.ubuntu.com/ubuntu jammy-updates/multiverse amd64 Packages [69.1 kB]
- Get:11 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1584 kB]
- Get:12 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [3751 kB]
- Get:13 http://archive.ubuntu.com/ubuntu jammy-backports/main amd64 Packages [83.9 kB]
- Get:14 http://archive.ubuntu.com/ubuntu jammy-backports/universe amd64 Packages [35.2 kB]
- Fetched 22.3 MB in 3s (7693 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_windows.dev] synchronised (file:///src)
[eio_posix.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 5.3.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml is already installed (current version is 5.3.0).
[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).
2025-10-10 21:15.00 ---> using "b78bd4fb4ec6822c120ed87d62a3f9d72d724e8b46ba2ff646cf72c7c118da57" 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 5.3.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml is already installed (current version is 5.3.0).
[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 47 packages
- install afl-persistent       1.4
- install alcotest             1.9.1
- install astring              0.8.5
- install backoff              0.1.1
- install base-bytes           base
- install bigstringaf          0.10.0
- install camlp-streams        5.0.1
- install cmdliner             2.0.0
- install conf-bash            1
- install containers           3.16
- install cppo                 1.8.0
- install crowbar              0.2.1
- 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                 3.20.2
- install dune-configurator    3.20.2
- 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                 0.9.0
- install lwt-dllist           1.1.0
- install mdx                  2.5.1
- install mtime                2.1.0
- install multicore-magic      2.3.1
- install ocaml-syntax-shims   1.0.0
- 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 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                1.1.0
- install tsort                2.2.0
- install uring                2.7.0
- 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 cmdliner.2.0.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved crowbar.0.2.1  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved domain-local-await.1.0.1  (cached)
-> retrieved domain-local-timeout.1.0.1  (cached)
-> retrieved cstruct.6.2.0  (cached)
-> retrieved containers.3.16  (cached)
-> retrieved dscheck.0.5.0  (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 logs.0.9.0  (cached)
-> retrieved lwt-dllist.1.1.0  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved multicore-magic.2.3.1  (cached)
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
-> retrieved mdx.2.5.1  (cached)
-> retrieved ocaml-version.4.0.3  (cached)
-> retrieved ocamlbuild.0.16.1  (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 oseq.0.5.1  (cached)
-> retrieved re.1.14.0  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> 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.1.1.0  (cached)
-> retrieved uutf.1.0.4  (cached)
-> retrieved yojson.3.0.0  (cached)
-> retrieved uring.2.7.0  (cached)
-> retrieved dune.3.20.2, dune-configurator.3.20.2  (cached)
-> installed cmdliner.2.0.0
-> installed ocamlbuild.0.16.1
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed topkg.1.1.0
-> installed hmap.0.8.1
-> installed mtime.2.1.0
-> installed uutf.1.0.4
-> installed fmt.0.11.0
-> installed astring.0.8.5
-> installed logs.0.9.0
-> installed dune.3.20.2
-> installed lwt-dllist.1.1.0
-> 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 multicore-magic.2.3.1
-> installed ocaml-syntax-shims.1.0.0
-> installed ocaml-version.4.0.3
-> 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 ocplib-endian.1.2
-> installed domain-local-timeout.1.0.1
-> installed domain-local-await.1.0.1
-> installed crowbar.0.2.1
-> installed kcas.0.7.0
-> installed alcotest.1.9.1
-> installed dune-configurator.3.20.2
-> installed bigstringaf.0.10.0
-> installed iomux.0.4
-> installed mdx.2.5.1
-> installed containers.3.16
-> installed uring.2.7.0
-> installed dscheck.0.5.0
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 5.3.0+afl ocaml-variants.5.3.0+options ocaml-option-afl
# To update the current shell environment, run: eval $(opam env)
2025-10-10 21:15.00 ---> using "89f4f572be67b4ab2e5f18157e398254cd902bf9f1d83b9022d5bcebe0f3ff4d" from cache


/src: (copy (src .) (dst /src))
2025-10-10 21:15.01 ---> saved as "4ca72e2c40732a7d810ea8053ae9d76e52da478509857db4d403f8e99b63170e"


/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_write.exe)
random ops: PASS


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


(cd _build/default/lib_eio_linux/tests && ./test.exe)
Testing `eio_linux'.
This run has ID `7H5FMVT3'.


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


Full test results in `/src/_build/default/lib_eio_linux/tests/_build/_tests/eio_linux'.
Test Successful in 0.014s. 11 tests run.
2025-10-10 21:15.40 ---> saved as "5f2e5fc93197ab8e11dadd6591c15190b96a6deb2ccb36decaa1bddcdd3c3db8"
Job succeeded
2025-10-10 21:15.40: Job succeeded