2026-05-12 13:11.26: New job: test ocaml-multicore/eio https://github.com/ocaml-multicore/eio.git#refs/heads/main (1e5d998b49d70e9671256d13588dc19b17f6b230) (linux-x86_64:ubuntu-24.04-5.4_opam-2.5) Base: ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b Opam project build To reproduce locally: git clone --recursive "https://github.com/ocaml-multicore/eio.git" -b "main" && cd "eio" && git reset --hard 1e5d998b cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b # ubuntu-24.04-5.4_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 a4f153d7481c469b20f3b1064338d6a21abcb832 || git fetch origin master) && git reset -q --hard a4f153d7481c469b20f3b1064338d6a21abcb832 && 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.2.1.1 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.3.23.0 dune-configurator.3.23.0 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.4.1.1 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.2.7.0 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 2026-05-12 13:11.26: Using cache hint "ocaml-multicore/eio-ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b-ubuntu-24.04-5.4_opam-2.5-1e2005c1be4916a02cf84fc6a7f9c4aa" 2026-05-12 13:11.26: Using OBuilder spec: ((from ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b) (comment ubuntu-24.04-5.4_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 a4f153d7481c469b20f3b1064338d6a21abcb832 || git fetch origin master) && git reset -q --hard a4f153d7481c469b20f3b1064338d6a21abcb832 && 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.2.1.1 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.3.23.0 dune-configurator.3.23.0 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.4.1.1 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.2.7.0 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=2.5 --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")) ) 2026-05-12 13:11.26: Waiting for resource in pool OCluster 2026-05-12 15:01.24: Waiting for worker… 2026-05-12 15:10.26: Got resource from pool OCluster Building on eumache.caelum.ci.dev All commits already cached HEAD is now at 1e5d998 Merge pull request #832 from m-click/simplify-custom-env-type (from ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b) Unable to find image 'ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b' locally docker.io/ocaml/opam@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b: Pulling from ocaml/opam 689b91d88a0f: Pulling fs layer 4e71de5e5d62: Pulling fs layer ebacb4dcb106: Pulling fs layer e54a581ed4fe: Pulling fs layer 31c8da56d6c5: Pulling fs layer 78c5ccb5f898: Pulling fs layer 05d21c448f84: Pulling fs layer 559aa43d65a4: Pulling fs layer d5185a2eabb5: Pulling fs layer 4af1cc7467a6: Pulling fs layer 785492f225f6: Pulling fs layer 42bfa704d2dd: Pulling fs layer 3be5ed29336d: Pulling fs layer e3319c2037f4: Pulling fs layer 94e34681764b: Pulling fs layer 4ec9e68ee34d: Pulling fs layer aec43c725cd2: Pulling fs layer ebacb4dcb106: Waiting e54a581ed4fe: Waiting 559aa43d65a4: Waiting 7acecb48ba6a: Pulling fs layer d5185a2eabb5: Waiting 4af1cc7467a6: Waiting 785492f225f6: Waiting 492dd654d68c: Pulling fs layer 42bfa704d2dd: Waiting 78c5ccb5f898: Waiting 3c8005e626fb: Pulling fs layer 31c8da56d6c5: Waiting 05d21c448f84: Waiting b6f67ba481ee: Pulling fs layer 4f4fb700ef54: Pulling fs layer 94e34681764b: Waiting df53a60fa952: Pulling fs layer b42cdad985d5: Pulling fs layer 494e19bd873f: Pulling fs layer 53ffe4a4f1f9: Pulling fs layer 4ec9e68ee34d: Waiting 754abef4f8f7: Pulling fs layer e3319c2037f4: Waiting aec43c725cd2: Waiting 3664f1751578: Pulling fs layer aa77633fe275: Pulling fs layer 7acecb48ba6a: Waiting 492dd654d68c: Waiting 3c8005e626fb: Waiting 5eec1f142a21: Pulling fs layer f70f5a070895: Pulling fs layer b6f67ba481ee: Waiting 4f4fb700ef54: Waiting 4bf3f5d0067b: Pulling fs layer cff0354fc807: Pulling fs layer df53a60fa952: Waiting b42cdad985d5: Waiting 3485656325da: Pulling fs layer 494e19bd873f: Waiting 7e84f578b127: Pulling fs layer 53ffe4a4f1f9: Waiting afcb0d69a5ce: Pulling fs layer 7eeb573d125d: Pulling fs layer 1d036fde2e92: Pulling fs layer 8bd34066b8cd: Pulling fs layer b1bdbb688505: Pulling fs layer 754abef4f8f7: Waiting 3664f1751578: Waiting a32fe70ebf8b: Pulling fs layer aa77633fe275: Waiting 5eec1f142a21: Waiting c8a281298210: Pulling fs layer f70f5a070895: Waiting 4bf3f5d0067b: Waiting c3aa8e81a32f: Pulling fs layer cff0354fc807: Waiting e3c4f2c16d28: Pulling fs layer 3485656325da: Waiting 0691d9999d93: Pulling fs layer e65256d8aa45: Pulling fs layer b1bdbb688505: Waiting a32fe70ebf8b: Waiting c8a281298210: Waiting cf0d291468bf: Pulling fs layer e3c4f2c16d28: Waiting 7e84f578b127: Waiting afcb0d69a5ce: Waiting 1d036fde2e92: Waiting c3aa8e81a32f: Waiting 8bd34066b8cd: Waiting 0691d9999d93: Waiting e65256d8aa45: Waiting 3be5ed29336d: Waiting cf0d291468bf: Waiting 4e71de5e5d62: Verifying Checksum 4e71de5e5d62: Download complete ebacb4dcb106: Download complete 689b91d88a0f: Verifying Checksum 689b91d88a0f: Download complete 31c8da56d6c5: Download complete 05d21c448f84: Verifying Checksum 05d21c448f84: Download complete e54a581ed4fe: Verifying Checksum e54a581ed4fe: Download complete 559aa43d65a4: Verifying Checksum 559aa43d65a4: Download complete d5185a2eabb5: Verifying Checksum d5185a2eabb5: Download complete 4af1cc7467a6: Verifying Checksum 4af1cc7467a6: Download complete 78c5ccb5f898: Verifying Checksum 78c5ccb5f898: Download complete 785492f225f6: Verifying Checksum 785492f225f6: Download complete 42bfa704d2dd: Verifying Checksum 42bfa704d2dd: Download complete 3be5ed29336d: Verifying Checksum 3be5ed29336d: Download complete e3319c2037f4: Verifying Checksum e3319c2037f4: Download complete 4ec9e68ee34d: Download complete 94e34681764b: Download complete aec43c725cd2: Download complete 7acecb48ba6a: Verifying Checksum 7acecb48ba6a: Download complete 492dd654d68c: Verifying Checksum 492dd654d68c: Download complete 3c8005e626fb: Verifying Checksum 3c8005e626fb: Download complete b6f67ba481ee: Verifying Checksum b6f67ba481ee: Download complete 4f4fb700ef54: Verifying Checksum 4f4fb700ef54: Download complete 689b91d88a0f: Pull complete 4e71de5e5d62: Pull complete ebacb4dcb106: Pull complete df53a60fa952: Verifying Checksum df53a60fa952: Download complete b42cdad985d5: Download complete 494e19bd873f: Verifying Checksum 494e19bd873f: Download complete 53ffe4a4f1f9: Verifying Checksum 53ffe4a4f1f9: Download complete 754abef4f8f7: Verifying Checksum 754abef4f8f7: Download complete 3664f1751578: Verifying Checksum 3664f1751578: Download complete aa77633fe275: Verifying Checksum aa77633fe275: Download complete 5eec1f142a21: Download complete 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complete c3aa8e81a32f: Pull complete e3c4f2c16d28: Pull complete 0691d9999d93: Pull complete e65256d8aa45: Pull complete cf0d291468bf: Pull complete Digest: sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b Status: Downloaded newer image for ocaml/opam@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b 2026-05-12 15:10.27 ---> using "a06438aa566b1a049d3c7f3592a97d1d542968d81a3b125c496e6979e82c3753" from cache /: (comment ubuntu-24.04-5.4_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")) 2026-05-12 15:10.27 ---> using "c2b2360ef99f72899407b49dd086bb8647a07219c731395851adaf9da76ebc22" 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 2026-05-12 15:10.27 ---> using "b5f92c54ac9e0bb36cf513f47b75a50818a7b9cd0b304784316918bc86e321e8" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-111-generic The OCaml toplevel, version 5.4.1 2.5.0 2026-05-12 15:10.27 ---> using "6dcd95a2cd00bae4736d988819170a2206558fe7fede2c0ce0afe161d3bc3ff5" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-05-12 15:10.27 ---> using "622547fce7a62120860246a1c49c10aaf61fb8918ad64525eab71906d89383a5" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e a4f153d7481c469b20f3b1064338d6a21abcb832 || git fetch origin master) && git reset -q --hard a4f153d7481c469b20f3b1064338d6a21abcb832 && git log --no-decorate -n1 --oneline && opam update -u")) From https://github.com/ocaml/opam-repository * branch master -> FETCH_HEAD 42844088d7..6f512c614e master -> origin/master a4f153d748 Merge pull request #29889 from mtelvers/opam-publish-ocaml-version.4.1.1 <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository default (at git+file:///home/opam/opam-repository): [WARNING] opam is out-of-date. Please consider updating it (https://opam.ocaml.org/doc/Install.html) default (at git+file:///home/opam/opam-repository): [INFO] opam 2.5.1 includes security fixes; please consider upgrading (https://opam.ocaml.org/doc/Install.html) 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) 2026-05-12 15:10.27 ---> using "e64927be6726c12769e22123d8fa1d2c13ef86dffc8b478c6974ff31877fe142" from cache /src: (copy (src eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam) (dst ./)) 2026-05-12 15:10.27 ---> using "c9524691e1fb532547d1db61a9523fc2980040171aadf8098335e55bf1f15c2b" 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) 2026-05-12 15:10.27 ---> using "e34f8976874d8a874b75147ce4187ce96e4fc39332a81fc298ee667dd99ed8c9" from cache /src: (run (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-05-12 15:10.27 ---> using "2425cb8309a97536e3d5581b907020211733c832f9eab457b8aab873bbbdfd05" 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.2.1.1 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.3.23.0 dune-configurator.3.23.0 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.4.1.1 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.2.7.0 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=2.5 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio_linux.dev eio.dev $DEPS")) + /usr/bin/sudo "apt-get" "update" - Get:1 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB] - Hit:2 http://archive.ubuntu.com/ubuntu noble InRelease - Get:3 http://archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB] - Get:4 http://security.ubuntu.com/ubuntu noble-security/multiverse amd64 Packages [34.2 kB] - Get:5 http://security.ubuntu.com/ubuntu noble-security/universe amd64 Packages [1504 kB] - Get:6 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages [2038 kB] - Get:7 http://archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB] - Get:8 http://security.ubuntu.com/ubuntu noble-security/restricted amd64 Packages [3610 kB] - Get:9 http://archive.ubuntu.com/ubuntu noble-updates/multiverse amd64 Packages [54.1 kB] - Get:10 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages [2412 kB] - Get:11 http://archive.ubuntu.com/ubuntu noble-updates/restricted amd64 Packages [3824 kB] - Get:12 http://archive.ubuntu.com/ubuntu noble-updates/universe amd64 Packages [2147 kB] - Get:13 http://archive.ubuntu.com/ubuntu noble-backports/main amd64 Packages [49.0 kB] - Get:14 http://archive.ubuntu.com/ubuntu noble-backports/universe amd64 Packages [35.9 kB] - Get:15 http://archive.ubuntu.com/ubuntu noble-backports/multiverse amd64 Packages [671 B] - Fetched 16.1 MB in 2s (9043 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) 2026-05-12 15:10.27 ---> using "73bd060dc15fbfa1c7fa2ed1d632bda9582077805f2f614c6d48fc7ecc091d85" 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 2.1.1 - 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 3.23.0 - install dune-configurator 3.23.0 - 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 4.1.1 - 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 2.7.0 - 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 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 cstruct.6.2.0 (cached) -> retrieved containers.3.18 (cached) -> retrieved either.1.0.0 (cached) -> retrieved dscheck.0.5.0 (https://opam.ocaml.org/cache) -> 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.0.10.0 (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 ocaml-version.4.1.1 (cached) -> retrieved mdx.2.5.2 (cached) -> retrieved ocamlbuild.0.16.1 (cached) -> retrieved ocamlfind.1.9.8 (cached) -> retrieved optint.0.3.0 (cached) -> retrieved psq.0.2.1 (cached) -> retrieved re.1.14.0 (cached) -> retrieved result.1.5 (cached) -> retrieved seq.base (cached) -> installed seq.base -> retrieved stdlib-shims.0.3.0 (cached) -> retrieved thread-table.1.0.0 (cached) -> retrieved oseq.0.5.1 (https://opam.ocaml.org/cache) -> retrieved topkg.1.1.1 (cached) -> retrieved tsort.2.2.0 (cached) -> retrieved uutf.1.0.4 (cached) -> retrieved yojson.3.0.0 (cached) -> retrieved uring.2.7.0 (cached) -> retrieved dune.3.23.0, dune-configurator.3.23.0 (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 fmt.0.11.0 -> installed uutf.1.0.4 -> installed mtime.2.1.0 -> installed astring.0.8.5 -> installed logs.0.10.0 -> installed dune.3.23.0 -> 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 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 result.1.5 -> installed stdlib-shims.0.3.0 -> installed thread-table.1.0.0 -> installed tsort.2.2.0 -> installed afl-persistent.1.4 -> installed re.1.14.0 -> installed domain-local-timeout.1.0.1 -> installed yojson.3.0.0 -> installed domain-local-await.1.0.1 -> installed crowbar.0.2.2 -> installed kcas.0.7.0 -> installed dune-configurator.3.23.0 -> installed alcotest.1.9.1 -> installed bigstringaf.0.10.0 -> installed iomux.0.4 -> installed mdx.2.5.2 -> installed containers.3.18 -> installed 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 5.4.1+afl ocaml-variants.5.4.1+options ocaml-option-afl # To update the current shell environment, run: eval $(opam env) 2026-05-12 15:10.27 ---> using "0addbe74ed20728f0ef735e7f6d270ec1122eaade92f6fd4d977146b684dc7df" from cache /src: (copy (src .) (dst /src)) 2026-05-12 15:10.28 ---> saved as "c47fe6504e2b241fef12288222b12ffbc49e716c39b2a3102214d4d3d362a322" /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 `ZZ5KRRAG'. [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 0.019s. 11 tests run. 2026-05-12 15:10.47 ---> saved as "8fa71e12091d0f726bc4abd8addc75fcbba22887a1c06972330fb4fe79b36d07" Job succeeded 2026-05-12 15:10.47: Job succeeded