2025-08-09 11:24.29: New job: test ocaml-multicore/eio https://github.com/ocaml-multicore/eio.git#refs/heads/main (1dce15f1aad822089828968f5e0421b7c5f06c92) (linux-x86_64:ubuntu-24.10-5.3_opam-2.4) Base: ocaml/opam:ubuntu-24.10-ocaml-5.3@sha256:a3ffa70374ecfc80dd386b73faebcc4ce15a8f241b0a09130e80ef58d76b2e74 Opam project build To reproduce locally: git clone --recursive "https://github.com/ocaml-multicore/eio.git" -b "main" && cd "eio" && git reset --hard 1dce15f1 cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:ubuntu-24.10-ocaml-5.3@sha256:a3ffa70374ecfc80dd386b73faebcc4ce15a8f241b0a09130e80ef58d76b2e74 # ubuntu-24.10-5.3_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 e77940d8ff8706305602d0d643bf01c77beef2e7 || git fetch origin master) && git reset -q --hard e77940d8ff8706305602d0d643bf01c77beef2e7 && 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.1.9.0 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.1.3.0 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.3.19.1 dune-configurator.3.19.1 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.3 kcas.0.7.0 logs.0.9.0 lwt-dllist.1.1.0 mdx.2.5.0 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.4.0.1 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.1.13.2 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.0 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=2.4 --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 2025-08-09 11:24.29: Using cache hint "ocaml-multicore/eio-ocaml/opam:ubuntu-24.10-ocaml-5.3@sha256:a3ffa70374ecfc80dd386b73faebcc4ce15a8f241b0a09130e80ef58d76b2e74-ubuntu-24.10-5.3_opam-2.4-27a7b64d5ed3f88e7588c9dd7b37c309" 2025-08-09 11:24.29: Using OBuilder spec: ((from ocaml/opam:ubuntu-24.10-ocaml-5.3@sha256:a3ffa70374ecfc80dd386b73faebcc4ce15a8f241b0a09130e80ef58d76b2e74) (comment ubuntu-24.10-5.3_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 e77940d8ff8706305602d0d643bf01c77beef2e7 || git fetch origin master) && git reset -q --hard e77940d8ff8706305602d0d643bf01c77beef2e7 && 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.1.9.0 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.1.3.0 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.3.19.1 dune-configurator.3.19.1 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.3 kcas.0.7.0 logs.0.9.0 lwt-dllist.1.1.0 mdx.2.5.0 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.4.0.1 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.1.13.2 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.0 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=2.4 --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")) ) 2025-08-09 11:24.29: Waiting for resource in pool OCluster 2025-08-09 11:24.30: Waiting for worker… 2025-08-09 11:24.30: Got resource from pool OCluster Building on eumache HEAD is now at 1456bcb Fix tests for fiber HEAD is now at 1dce15f Merge pull request #817 from talex5/fix-windows-link (from ocaml/opam:ubuntu-24.10-ocaml-5.3@sha256:a3ffa70374ecfc80dd386b73faebcc4ce15a8f241b0a09130e80ef58d76b2e74) Unable to find image 'ocaml/opam:ubuntu-24.10-ocaml-5.3@sha256:a3ffa70374ecfc80dd386b73faebcc4ce15a8f241b0a09130e80ef58d76b2e74' locally docker.io/ocaml/opam@sha256:a3ffa70374ecfc80dd386b73faebcc4ce15a8f241b0a09130e80ef58d76b2e74: Pulling from ocaml/opam ddbef59e0ea0: Already exists c8a958777819: Already exists a9c4d03c89cf: Already exists fad6b78bd523: Already exists cb002c153c80: Already exists 876c82aa019b: Already exists bfef421a4b69: Already exists e6b4d8b7cd2a: Already exists 54235cbedf66: Already exists 969e20d3615a: Already exists f75a26651ead: Already exists e2e5dbeca078: Already exists adb8cd405a24: Already exists 42f7bc177c6f: Already exists 56c2e03eb936: Already exists 5e8ac5f38241: Already exists 5e8ac5f38241: Already exists cf8c284afc78: Already exists 69eda5caf340: Already exists fe98b660af07: Already exists 8d65ed03220e: Already exists 4f4fb700ef54: Already exists 96582afc94cb: Already exists d44b0146fa5e: Already exists 3a73ad442907: Already exists 3dc02b22b155: Already exists 47a44a4e8580: Already exists 475edb260ff3: Already exists e6f89448d543: Already exists ef0f57ea5fcb: Already exists 81800827d60e: Already exists bbad171c3b15: Already exists 2c25dc074a59: Already exists 308c9094d6f5: Already exists 5679f7d0987f: Already exists c2d4e4e71780: Already exists 9a9042028693: Already exists 169b16f4d220: Already exists 7a375914fd04: Already exists 3f03a6e57bb0: Already exists 477be20739ff: Already exists c139be691ddd: Already exists adeeba91b798: Already exists 11585459cda5: Already exists 7ab304c0e7fb: Already exists 0904add4b2ab: Already exists f986bf9d5ca9: Already exists Digest: sha256:a3ffa70374ecfc80dd386b73faebcc4ce15a8f241b0a09130e80ef58d76b2e74 Status: Downloaded newer image for ocaml/opam@sha256:a3ffa70374ecfc80dd386b73faebcc4ce15a8f241b0a09130e80ef58d76b2e74 2025-08-09 11:24.30 ---> using "e3031fce4666df3c8a4d180feda7dc06becd86fde09e4c874799a52edafeeda3" from cache /: (comment ubuntu-24.10-5.3_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")) 2025-08-09 11:24.30 ---> using "10e069c55691c8c8bc8ff3c9d06849a8500b515494ff3c8c3eb82bc77d01f444" 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 2025-08-09 11:24.30 ---> using "42acfd97ba2129a9e34a426a15cbdd19d97d6318186c060b8226b005a9b7c296" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 5.15.0-131-generic The OCaml toplevel, version 5.3.0 2.4.1 2025-08-09 11:24.30 ---> using "5c539334f7daa882dd9a8279c3112442b04dbafc75ca75009b1c044b726ce5c4" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2025-08-09 11:24.30 ---> using "d6d84bbff321ba13d7949c31688b1af7860219b3bb3cfdb33786f4e8dd5d0763" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e e77940d8ff8706305602d0d643bf01c77beef2e7 || git fetch origin master) && git reset -q --hard e77940d8ff8706305602d0d643bf01c77beef2e7 && git log --no-decorate -n1 --oneline && opam update -u")) e77940d8ff Merge pull request #28255 from dbuenzli/b0-publish-fmt.0.11.0 <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository Already up-to-date. Nothing to do. # To update the current shell environment, run: eval $(opam env) 2025-08-09 11:24.30 ---> using "7ccf84e14a37bdb946b51d859c126696e4a6684d381c5f3f5b4d1d108a84c0e0" from cache /src: (copy (src eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam) (dst ./)) 2025-08-09 11:24.30 ---> saved as "772e9ed01360cb6c842b1555fd22f88908b1f2adbe9275493d091d3c922a33cc" /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) 2025-08-09 11:24.39 ---> saved as "fc1c54155b151c010320d6de00a22e0f3c9f55f25576fa23ff2a64493546f303" /src: (run (network host) (shell "echo '(lang dune 3.0)' > './dune-project'")) 2025-08-09 11:24.39 ---> saved as "23232df7925fb38b6952236acff1978c00735db56e4203f1157b7ebb45ee9b4b" /src: (env DEPS "afl-persistent.1.4 alcotest.1.9.0 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.1.3.0 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.3.19.1 dune-configurator.3.19.1 either.1.0.0 fmt.0.11.0 hmap.0.8.1 iomux.0.3 kcas.0.7.0 logs.0.9.0 lwt-dllist.1.1.0 mdx.2.5.0 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.4.0.1 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.1.13.2 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.1.0 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=2.4 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio_linux.dev eio.dev $DEPS")) + /usr/bin/sudo "apt-get" "update" - Hit:1 http://security.ubuntu.com/ubuntu oracular-security InRelease - Hit:2 http://archive.ubuntu.com/ubuntu oracular InRelease - Hit:3 http://archive.ubuntu.com/ubuntu oracular-updates InRelease - Hit:4 http://archive.ubuntu.com/ubuntu oracular-backports InRelease - 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 5.3.0). [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). 2025-08-09 11:24.50 ---> saved as "79e6c9343d88e046922da41f04dc41715b2783201869307c63bde9a9cd074cf4" /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 1.9.0 - 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 1.3.0 - 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 3.19.1 - install dune-configurator 3.19.1 - install either 1.0.0 - install fmt 0.11.0 - install hmap 0.8.1 - install iomux 0.3 - install kcas 0.7.0 - install logs 0.9.0 - install lwt-dllist 1.1.0 - install mdx 2.5.0 - install mtime 2.1.0 - install multicore-magic 2.3.1 - install ocaml-syntax-shims 1.0.0 - install ocaml-version 4.0.1 - 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 1.13.2 - 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 0.9 - install uutf 1.0.4 - install yojson 3.0.0 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved afl-persistent.1.4 (cached) -> retrieved alcotest.1.9.0 (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.1.3.0 (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 dscheck.0.5.0 (cached) -> retrieved containers.3.16 (cached) -> retrieved cstruct.6.2.0 (cached) -> retrieved either.1.0.0 (cached) -> retrieved hmap.0.8.1 (cached) -> retrieved fmt.0.11.0 (cached) -> retrieved iomux.0.3 (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.2.5.0 (cached) -> retrieved ocaml-version.4.0.1 (cached) -> retrieved ocamlfind.1.9.8 (cached) -> retrieved ocamlbuild.0.16.1 (cached) -> retrieved ocplib-endian.1.2 (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.1.13.2 (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.0.9 (cached) -> retrieved dune.3.19.1, dune-configurator.3.19.1 (cached) -> installed cmdliner.1.3.0 -> 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 uutf.1.0.4 -> installed mtime.2.1.0 -> installed fmt.0.11.0 -> installed astring.0.8.5 -> installed logs.0.9.0 -> installed dune.3.19.1 -> installed afl-persistent.1.4 -> installed lwt-dllist.1.1.0 -> installed csexp.1.5.2 -> installed backoff.0.1.1 -> installed camlp-streams.5.0.1 -> installed cstruct.6.2.0 -> installed either.1.0.0 -> installed multicore-magic.2.3.1 -> installed ocaml-syntax-shims.1.0.0 -> installed cppo.1.8.0 -> installed ocaml-version.4.0.1 -> installed optint.0.3.0 -> installed oseq.0.5.1 -> installed psq.0.2.1 -> installed re.1.13.2 -> 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 alcotest.1.9.0 -> installed kcas.0.7.0 -> installed dune-configurator.3.19.1 -> installed mdx.2.5.0 -> installed bigstringaf.0.10.0 -> installed iomux.0.3 -> installed containers.3.16 -> installed uring.0.9 -> 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) 2025-08-09 11:25.34 ---> saved as "0f05081f88887324e5c970d2dbd0c93d3915e70abc3d5533faef7d35fa794a45" /src: (copy (src .) (dst /src)) 2025-08-09 11:25.34 ---> saved as "90828e9df1b23e9a8a8ba604620b8bd874e7ec44055494cbc8fe9615c1d329b2" /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 (cd _build/default/lib_eio_linux/tests && ./test.exe) Testing `eio_linux'. This run has ID `6U2AIFFJ'. [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 0.006s. 11 tests run. 2025-08-09 11:25.43 ---> saved as "f48b32b3ca0d86589d62e88e762fd20d950794b37d89a50133b6bacd5f7c312f" Job succeeded 2025-08-09 11:25.44: Job succeeded