2026-03-31 14:33.34: New job: test ocaml-multicore/lwt_eio https://github.com/ocaml-multicore/lwt_eio.git#refs/pull/31/head (60bd688ec0d0d25bccbdb4428677205b3f91805c) (linux-x86_64:ubuntu-22.04-5.4_opam-2.5)Base: ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:e4dfcae6e38f838fabf685c7211c2fe7c093177ca2950941eee47cbecc201af9Opam project buildTo reproduce locally:git clone --recursive "https://github.com/ocaml-multicore/lwt_eio.git" && cd "lwt_eio" && git fetch origin "refs/pull/31/head" && git reset --hard 60bd688ecat > Dockerfile <<'END-OF-DOCKERFILE'FROM ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:e4dfcae6e38f838fabf685c7211c2fe7c093177ca2950941eee47cbecc201af9# ubuntu-22.04-5.4_opam-2.5USER 1000:1000ENV CLICOLOR_FORCE="1"ENV OPAMCOLOR="always"WORKDIR /srcRUN sudo ln -f /usr/bin/opam-2.5 /usr/bin/opamRUN opam init --reinit -niRUN uname -rs && opam exec -- ocaml -version && opam --versionWORKDIR /srcRUN sudo chown opam /srcRUN cd ~/opam-repository && (git cat-file -e fa13386c66935e14b279e9af8d7c721a841edf96 || git fetch origin master) && git reset -q --hard fa13386c66935e14b279e9af8d7c721a841edf96 && git log --no-decorate -n1 --oneline && opam update -uCOPY --chown=1000:1000 lwt_eio.opam ./RUN opam pin add -yn lwt_eio.dev './'RUN echo '(lang dune 3.0)' > './dune-project'ENV DEPS="astring.0.8.5 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.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 dune.3.22.0 dune-configurator.3.22.0 eio.1.3 eio_linux.1.3 eio_main.1.3 eio_posix.1.3 fmt.0.11.0 hmap.0.8.1 iomux.0.4 logs.0.10.0 lwt.6.1.1 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 psq.0.2.1 re.1.14.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.1.1 uring.2.7.0"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.5 --depext-only -y lwt_eio.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . /srcRUN opam exec -- dune build @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-03-31 14:33.34: Using cache hint "ocaml-multicore/lwt_eio-ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:e4dfcae6e38f838fabf685c7211c2fe7c093177ca2950941eee47cbecc201af9-ubuntu-22.04-5.4_opam-2.5-c759cd8e9bf708d5272feed1ede6a5ab"2026-03-31 14:33.34: Using OBuilder spec:((from ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:e4dfcae6e38f838fabf685c7211c2fe7c093177ca2950941eee47cbecc201af9)(comment ubuntu-22.04-5.4_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 fa13386c66935e14b279e9af8d7c721a841edf96 || git fetch origin master) && git reset -q --hard fa13386c66935e14b279e9af8d7c721a841edf96 && git log --no-decorate -n1 --oneline && opam update -u"))(copy (src lwt_eio.opam) (dst ./))(run (network host)(shell "opam pin add -yn lwt_eio.dev './'"))(run (shell "echo '(lang dune 3.0)' > './dune-project'"))(env DEPS "astring.0.8.5 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.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 dune.3.22.0 dune-configurator.3.22.0 eio.1.3 eio_linux.1.3 eio_main.1.3 eio_posix.1.3 fmt.0.11.0 hmap.0.8.1 iomux.0.4 logs.0.10.0 lwt.6.1.1 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 psq.0.2.1 re.1.14.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.1.1 uring.2.7.0")(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 lwt_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")))2026-03-31 14:33.34: Waiting for resource in pool OCluster2026-03-31 15:00.22: Waiting for worker…2026-03-31 15:06.03: Got resource from pool OClusterBuilding on phoebe.caelum.ci.devAll commits already cachedHEAD is now at 60bd688 update scheduling test(from ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:e4dfcae6e38f838fabf685c7211c2fe7c093177ca2950941eee47cbecc201af9)2026-03-31 15:06.04 ---> using "a494baecbb94e7af4729d4c2ae860efde3ac6b3dc163dcb8423239dae5deadc4" from cache/: (comment ubuntu-22.04-5.4_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"))2026-03-31 15:06.04 ---> using "e5280f8b1c6f0298ccc2a6bcb36e6de990878c996fb6e9437093be910da9449d" 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] yFormat upgrade done.<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>[default] Initialised2026-03-31 15:06.04 ---> using "0733a7d2324a7e649e143a7b1a25624625d45bf75af068c91f760900ce4dfe73" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-106-genericThe OCaml toplevel, version 5.4.02.5.02026-03-31 15:06.04 ---> using "4d7450a6f82470363f267e9558dda7fc3483e573698f6886e667a9bb28c3b837" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-03-31 15:06.04 ---> using "b8a2c0d42955ac90f8517be228dcb3fea7854c0d204131339e5e27619cebb1b7" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e fa13386c66935e14b279e9af8d7c721a841edf96 || git fetch origin master) && git reset -q --hard fa13386c66935e14b279e9af8d7c721a841edf96 && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEADffb54b9bdd..fdb5e370d7 master -> origin/masterfa13386c66 Merge pull request #29586 from Julow/release-mdx-2.5.2<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repositoryEverything 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.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)2026-03-31 15:06.04 ---> using "77786609708af14b1ff8fa555b0677d1c42ca768a580e781dcf3be2d829fb34f" from cache/src: (copy (src lwt_eio.opam) (dst ./))2026-03-31 15:06.04 ---> saved as "602f4cb26cf4a4893dad872eb655feb118dc1a09fbfb6ea64e54ded5bc84fe93"/src: (run (network host)(shell "opam pin add -yn lwt_eio.dev './'"))[lwt_eio.dev] synchronised (file:///src)lwt_eio is now pinned to file:///src (version dev)2026-03-31 15:06.09 ---> saved as "131f7b18c794ab82be498339bc528cce2da589faf0723b244c9e9049479eb23d"/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-03-31 15:06.09 ---> saved as "21a8e776a78aeba93f31f1962d5a55be6d47d758e119c5e18a7ab571b954ecc8"/src: (env DEPS "astring.0.8.5 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.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 dune.3.22.0 dune-configurator.3.22.0 eio.1.3 eio_linux.1.3 eio_main.1.3 eio_posix.1.3 fmt.0.11.0 hmap.0.8.1 iomux.0.4 logs.0.10.0 lwt.6.1.1 lwt-dllist.1.1.0 mdx.2.5.2 mtime.2.1.0 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.4 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 psq.0.2.1 re.1.14.0 result.1.5 seq.base thread-table.1.0.0 topkg.1.1.1 uring.2.7.0")/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 lwt_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 [6803 kB]- Get:6 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [3842 kB]- Get:7 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1309 kB]- Get:8 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [4173 kB]- Get:9 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [7011 kB]- Get:10 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1620 kB]- Get:11 http://archive.ubuntu.com/ubuntu jammy-backports/universe amd64 Packages [35.6 kB]- Get:12 http://archive.ubuntu.com/ubuntu jammy-backports/main amd64 Packages [84.0 kB]- Fetched 25.3 MB in 3s (7964 kB/s)- Reading package lists...-<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[lwt_eio.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 5.4.0).[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0).[NOTE] Package ocaml is already installed (current version is 5.4.0).[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).# To update the current shell environment, run: eval $(opam env)2026-03-31 15:06.39 ---> saved as "f89d417b1c824f2cc016474b170d710ff94765127f3b598d4f0f593a8ba4af36"/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 5.4.0).[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0).[NOTE] Package ocaml is already installed (current version is 5.4.0).[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 35 packages- install astring 0.8.5- install base-bytes base- install bigstringaf 0.10.0- install camlp-streams 5.0.1- install cmdliner 2.1.0- install cppo 1.8.0- install csexp 1.5.2- install cstruct 6.2.0- install domain-local-await 1.0.1- install dune 3.22.0- install dune-configurator 3.22.0- install eio 1.3- install eio_linux 1.3- install eio_main 1.3- install eio_posix 1.3- install fmt 0.11.0- install hmap 0.8.1- install iomux 0.4- install logs 0.10.0- install lwt 6.1.1- install lwt-dllist 1.1.0- install mdx 2.5.2- install mtime 2.1.0- install ocaml-version 4.0.4- install ocamlbuild 0.16.1- install ocamlfind 1.9.8- install ocplib-endian 1.2- install optint 0.3.0- install psq 0.2.1- install re 1.14.0- install result 1.5- install seq base- install thread-table 1.0.0- install topkg 1.1.1- install uring 2.7.0<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved astring.0.8.5 (cached)-> retrieved bigstringaf.0.10.0 (cached)-> retrieved camlp-streams.5.0.1 (cached)-> retrieved csexp.1.5.2 (cached)-> retrieved cppo.1.8.0 (cached)-> retrieved domain-local-await.1.0.1 (cached)-> retrieved cmdliner.2.1.0 (cached)-> retrieved cstruct.6.2.0 (cached)-> retrieved fmt.0.11.0 (cached)-> retrieved hmap.0.8.1 (cached)-> retrieved iomux.0.4 (cached)-> retrieved logs.0.10.0 (cached)-> retrieved lwt.6.1.1 (cached)-> retrieved eio.1.3, eio_linux.1.3, eio_main.1.3, eio_posix.1.3 (cached)-> retrieved lwt-dllist.1.1.0 (cached)-> retrieved mtime.2.1.0 (cached)-> retrieved mdx.2.5.2 (cached)-> retrieved ocaml-version.4.0.4 (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 psq.0.2.1 (cached)-> retrieved result.1.5 (cached)-> retrieved seq.base (cached)-> installed seq.base-> retrieved re.1.14.0 (cached)-> retrieved thread-table.1.0.0 (cached)-> retrieved topkg.1.1.1 (cached)-> retrieved uring.2.7.0 (cached)-> retrieved dune.3.22.0, dune-configurator.3.22.0 (cached)-> installed cmdliner.2.1.0-> installed ocamlfind.1.9.8-> installed base-bytes.base-> installed ocamlbuild.0.16.1-> installed topkg.1.1.1-> installed hmap.0.8.1-> installed mtime.2.1.0-> installed fmt.0.11.0-> installed astring.0.8.5-> installed dune.3.22.0-> installed lwt-dllist.1.1.0-> installed thread-table.1.0.0-> installed csexp.1.5.2-> installed camlp-streams.5.0.1-> installed cstruct.6.2.0-> installed ocaml-version.4.0.4-> installed optint.0.3.0-> installed psq.0.2.1-> installed result.1.5-> installed domain-local-await.1.0.1-> installed cppo.1.8.0-> installed re.1.14.0-> installed ocplib-endian.1.2-> installed dune-configurator.3.22.0-> installed bigstringaf.0.10.0-> installed iomux.0.4-> installed eio.1.3-> installed uring.2.7.0-> installed lwt.6.1.1-> installed eio_linux.1.3-> installed eio_posix.1.3-> installed eio_main.1.3-> installed logs.0.10.0-> installed mdx.2.5.2Done.# To update the current shell environment, run: eval $(opam env)2026-03-31 15:09.55 ---> saved as "094bdbde4571e90e4093ebb201f8ac449b2abb78614f334ed77969fd5d80e072"/src: (copy (src .) (dst /src))2026-03-31 15:09.56 ---> saved as "6abbc04b9579b94cf2de1135f6b08afaeb799f40c03fcce5699b9f16c1508915"/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))2026-03-31 15:10.08 ---> saved as "b3794b51a1bcc6c832afff44a394c66d66de257d7a7cf33b967fa57721f77072"Job succeeded2026-03-31 15:10.08: Job succeeded