2026-04-03 12:25.38: New job: test ocaml-multicore/lwt_eio https://github.com/ocaml-multicore/lwt_eio.git#refs/heads/master (aeced087ef3d7321938db12d27327eab69d972af) (linux-x86_64:debian-13-5.3_opam-2.5)Base: ocaml/opam:debian-13-ocaml-5.3@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1Opam project buildTo reproduce locally:git clone --recursive "https://github.com/ocaml-multicore/lwt_eio.git" -b "master" && cd "lwt_eio" && git reset --hard aeced087cat > Dockerfile <<'END-OF-DOCKERFILE'FROM ocaml/opam:debian-13-ocaml-5.3@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1# debian-13-5.3_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 d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && 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.3.22.1 dune-configurator.3.22.1 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.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 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-BLOCK2026-04-03 12:25.38: Using cache hint "ocaml-multicore/lwt_eio-ocaml/opam:debian-13-ocaml-5.3@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1-debian-13-5.3_opam-2.5-8f327475a59af129a7544fd3d7c4428b"2026-04-03 12:25.38: Using OBuilder spec:((from ocaml/opam:debian-13-ocaml-5.3@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1)(comment debian-13-5.3_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 d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && 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.3.22.1 dune-configurator.3.22.1 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.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 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")))2026-04-03 12:25.38: Waiting for resource in pool OCluster2026-04-03 12:25.38: Waiting for worker…2026-04-03 12:26.02: Got resource from pool OClusterBuilding on eumache.caelum.ci.devAll commits already cachedHEAD is now at aeced08 Merge pull request #31 from raphael-proust/lwt6-compat(from ocaml/opam:debian-13-ocaml-5.3@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1)Unable to find image 'ocaml/opam:debian-13-ocaml-5.3@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1' locallydocker.io/ocaml/opam@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1: Pulling from ocaml/opam866771c43bf5: Already exists1e49bea09367: Already existse793768537e6: Already existsed323d3d481a: Already exists7df34a5cd5f1: Already existsfd712d3eb935: Already exists4b9fb8c99118: Already exists9d9a01948b94: Already exists0f1514f90b32: Already existse1ec5a753447: Already exists03cc323e2f71: Already existsc09c08ea9749: Already existsb36b619f8e6b: Already exists195344ca5274: Already exists228ee78582a6: Already exists504bde1c25b3: Already exists9d8b1356c89f: Already exists9d8b1356c89f: Already exists568fb6dda155: Already existsc499c9198aea: Already exists048e5e358118: Already exists871ca48eb45d: Already exists4f4fb700ef54: Already existsa5a2568b9df9: Already exists068cf3106ac8: Already exists559f54ec9b29: Already exists798ffd96fde5: Already existse9a891bf80d7: Already existsd720cfe12674: Already existsc81c932f4a91: Already exists79f24fa3bb11: Already exists8c1debcd8c20: Already exists1bb2cfea7250: Already exists2b3d3ca75e4c: Already exists557cacaf263c: Already existsd10483022eef: Already exists7b62a90d8223: Already exists28ce8ea66e72: Already existsd975909ea717: Already exists5c215c69c247: Already existse7c082452a54: Already existsd07fbd330640: Already exists7d6e07f490b4: Already exists7c969737c994: Already exists5f4b58380b1f: Already exists0baab51bcd0b: Already exists044b3ed4ba51: Already exists2be224ec2bff: Already existsDigest: sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d1Status: Downloaded newer image for ocaml/opam@sha256:d68d2901c08ff08c488598e952eb1fdf628ab2d548c42615080cd232ee37a8d12026-04-03 12:26.02 ---> using "fa087069cd4913e9575aba52692d4f0e549203496289924a2b385444c7b95f42" from cache/: (comment debian-13-5.3_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"))2026-04-03 12:26.02 ---> using "65a89563dad9e49507b822a7e48d4ee1adb3b7e988d00271e2242e8d7b23612b" 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] Initialised2026-04-03 12:26.02 ---> using "efb3e27c48ef6bb8e7692ace1582d326dd8b3cec177d782dbb5496b9e9009d6f" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 5.15.0-173-genericThe OCaml toplevel, version 5.3.02.5.02026-04-03 12:26.02 ---> using "c97f89925c634fa7327e31393c7a9cf98fae3fe9dae76ef165dd1735a2e1bd2f" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-04-03 12:26.02 ---> using "24d739d2e3d927c0f45a4990ccba9d44992ed6aec8944e77d4f6ed43c062e418" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEADffb54b9bdd..d06cfb1853 master -> origin/masterd06cfb1853 Merge pull request #29632 from shonfeder/release-dune-3.22.1<><> 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)2026-04-03 12:26.02 ---> using "0df3cfd81a97625080025422d002784c12a0f3c2e9a979d006fba7cdfdb74642" from cache/src: (copy (src lwt_eio.opam) (dst ./))2026-04-03 12:26.02 ---> saved as "7e4e66195f05c17e095d03c5864d1638b106845973253aeeff5c1c7cfb35e0af"/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)2026-04-03 12:26.06 ---> saved as "5c7cdc542e17027b646403a924a161a4cc240246a035dcd51b208e8e425fa478"/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-04-03 12:26.06 ---> saved as "b07dda913f09571a7d5bbb6e3ed4e29d49d4fc4852f4036209ce97b45a12ee5d"/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.3.22.1 dune-configurator.3.22.1 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.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 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://deb.debian.org/debian trixie InRelease [140 kB]- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]- Get:4 http://deb.debian.org/debian trixie/main amd64 Packages [9671 kB]- Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [119 kB]- Fetched 10.0 MB in 2s (4922 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 5.3.0).[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).# To update the current shell environment, run: eval $(opam env)2026-04-03 12:26.34 ---> saved as "d20d99a4182f730f71eb7bb19ed61f0827bf24dc3f16bd33fc7037ebd712a804"/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 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 3.22.1- install dune-configurator 3.22.1- 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 cppo.1.8.0 (cached)-> retrieved cmdliner.2.1.0 (cached)-> retrieved csexp.1.5.2 (cached)-> retrieved cstruct.6.2.0 (cached)-> retrieved domain-local-await.1.0.1 (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 lwt-dllist.1.1.0 (cached)-> retrieved mdx.2.5.2 (cached)-> retrieved eio.1.3, eio_linux.1.3, eio_main.1.3, eio_posix.1.3 (cached)-> retrieved mtime.2.1.0 (cached)-> retrieved ocaml-version.4.0.4 (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 re.1.14.0 (cached)-> retrieved seq.base (cached)-> installed seq.base-> retrieved result.1.5 (cached)-> retrieved thread-table.1.0.0 (cached)-> retrieved topkg.1.1.1 (cached)-> retrieved uring.2.7.0 (cached)-> retrieved dune.3.22.1, dune-configurator.3.22.1 (cached)-> installed cmdliner.2.1.0-> installed ocamlbuild.0.16.1-> installed ocamlfind.1.9.8-> installed base-bytes.base-> 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.3.22.1-> installed lwt-dllist.1.1.0-> 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 thread-table.1.0.0-> installed cppo.1.8.0-> installed re.1.14.0-> installed ocplib-endian.1.2-> installed domain-local-await.1.0.1-> installed dune-configurator.3.22.1-> installed bigstringaf.0.10.0-> installed iomux.0.4-> installed eio.1.3-> installed lwt.6.1.1-> installed uring.2.7.0-> installed eio_linux.1.3-> installed eio_posix.1.3-> installed logs.0.10.0-> installed eio_main.1.3-> installed mdx.2.5.2Done.# To update the current shell environment, run: eval $(opam env)2026-04-03 12:29.36 ---> saved as "f76c22b3ab6a28d936ebd302ab2ee18d80059fc6a138580ec1ef763965f469a4"/src: (copy (src .) (dst /src))2026-04-03 12:29.36 ---> saved as "fc81976059e395730d28cd46459fbadee515d6b305a0849198ad6db1e474d21a"/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))2026-04-03 12:29.48 ---> saved as "5ba62c87151219988a4faa1b03cfc51b0dc68fe23fc72a25a91a74e26ffdcc07"Job succeeded2026-04-03 12:29.48: Job succeeded