2026-04-16 16:38.19: New job: test ocaml-multicore/lwt_eio https://github.com/ocaml-multicore/lwt_eio.git#refs/heads/master (1fb0815d20827bc3e336b5410fbb0d49b36f5334) (linux-x86_64:opensuse-15.6-5.4_opam-2.5)Base: ocaml/opam:opensuse-15.6-ocaml-5.4@sha256:40e86c2b4445dd7c40b427d465672f4f0d7e5e6d40b5e43edf29b930a4cc6745Opam project buildTo reproduce locally:git clone --recursive "https://github.com/ocaml-multicore/lwt_eio.git" -b "master" && cd "lwt_eio" && git reset --hard 1fb0815dcat > Dockerfile <<'END-OF-DOCKERFILE'FROM ocaml/opam:opensuse-15.6-ocaml-5.4@sha256:40e86c2b4445dd7c40b427d465672f4f0d7e5e6d40b5e43edf29b930a4cc6745# opensuse-15.6-5.4_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 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && 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.3.22.2 dune-configurator.3.22.2 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.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 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-BLOCK2026-04-16 16:38.19: Using cache hint "ocaml-multicore/lwt_eio-ocaml/opam:opensuse-15.6-ocaml-5.4@sha256:40e86c2b4445dd7c40b427d465672f4f0d7e5e6d40b5e43edf29b930a4cc6745-opensuse-15.6-5.4_opam-2.5-43c7cf53d6fa2e8b773af2deef825870"2026-04-16 16:38.19: Using OBuilder spec:((from ocaml/opam:opensuse-15.6-ocaml-5.4@sha256:40e86c2b4445dd7c40b427d465672f4f0d7e5e6d40b5e43edf29b930a4cc6745)(comment opensuse-15.6-5.4_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 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && 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.3.22.2 dune-configurator.3.22.2 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.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 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")))2026-04-16 16:38.19: Waiting for resource in pool OCluster2026-04-16 16:40.12: Waiting for worker…2026-04-16 16:44.44: Got resource from pool OClusterBuilding on eumache.caelum.ci.devAll commits already cachedHEAD is now at 1fb0815 Merge pull request #32 from talex5/release(from ocaml/opam:opensuse-15.6-ocaml-5.4@sha256:40e86c2b4445dd7c40b427d465672f4f0d7e5e6d40b5e43edf29b930a4cc6745)Unable to find image 'ocaml/opam:opensuse-15.6-ocaml-5.4@sha256:40e86c2b4445dd7c40b427d465672f4f0d7e5e6d40b5e43edf29b930a4cc6745' locallydocker.io/ocaml/opam@sha256:40e86c2b4445dd7c40b427d465672f4f0d7e5e6d40b5e43edf29b930a4cc6745: Pulling from ocaml/opam2824220eb759: Pulling fs layerd6e0f6bf3ee8: Pulling fs layer98ea95f8982c: Pulling fs layer66c4e2d11417: Pulling fs layer178bf13c4542: Pulling fs layer3363b6690622: Pulling fs layer2f360ed5ed1c: Pulling fs layer0157dc55738d: Pulling fs layeradbd7b083662: Pulling fs 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Checksum0157dc55738d: Download complete08da4b8ec306: Verifying Checksum08da4b8ec306: Download completeadbd7b083662: Verifying Checksumadbd7b083662: Download complete0eb7579d9e49: Verifying Checksum0eb7579d9e49: Download complete2d08af6962f0: Verifying Checksum2d08af6962f0: Download completea469e6a3633d: Verifying Checksuma469e6a3633d: Download complete82c744fdb18a: Verifying Checksum82c744fdb18a: Download complete98ea95f8982c: Verifying Checksum98ea95f8982c: Download complete67e235ccb630: Download complete36b9f578dfd0: Verifying Checksum36b9f578dfd0: Download complete054af01a93fc: Download complete4f4fb700ef54: Verifying Checksum4f4fb700ef54: Download completee8dd567f0fce: Verifying Checksume8dd567f0fce: Download complete95a8dc77b77e: Verifying Checksum95a8dc77b77e: Download completecc10f5cb66cf: Verifying Checksumcc10f5cb66cf: Download completec6967ed40884: Verifying Checksumc6967ed40884: Download complete2824220eb759: Pull completed6e0f6bf3ee8: Pull complete86261b212eac: Download complete327409bbc709: Download completec593fa27ed82: Verifying Checksumc593fa27ed82: Download complete68843b0965c1: Verifying Checksum68843b0965c1: Download complete1dce24306ea4: Verifying Checksum1dce24306ea4: Download completed41b89be77dc: Verifying Checksumd41b89be77dc: Download completea847491754f8: Download complete2ba6e682b334: Download complete88783f87eac5: Verifying Checksum88783f87eac5: Download completeeffccec7e4d4: Download completec433d8fc16c8: Download completee8dea40a6ae6: Download complete5be5b25f37bd: Download complete98ea95f8982c: Pull complete8a320261bc75: Verifying Checksum8a320261bc75: Download completef36d6c98cb79: Verifying Checksumf36d6c98cb79: Download complete94a228a5ee2b: Verifying Checksum94a228a5ee2b: Download complete2f4d54523759: Verifying Checksum2f4d54523759: Download complete303d675deef6: Verifying Checksum303d675deef6: Download complete48745103a26a: Verifying Checksum48745103a26a: Download complete10d6d5991602: Verifying Checksum10d6d5991602: Download complete49510a9bffbc: Verifying Checksum49510a9bffbc: Download complete2c60e853f538: Verifying Checksum2c60e853f538: Download complete66c4e2d11417: Pull complete178bf13c4542: Pull complete3363b6690622: Pull complete2f360ed5ed1c: Pull complete0157dc55738d: Pull completeadbd7b083662: Pull complete08da4b8ec306: Pull complete2d08af6962f0: Pull complete0eb7579d9e49: Pull completea469e6a3633d: Pull complete82c744fdb18a: Pull complete36b9f578dfd0: Pull complete67e235ccb630: Pull complete054af01a93fc: Pull completee8dd567f0fce: Pull complete4f4fb700ef54: Pull complete95a8dc77b77e: Pull completecc10f5cb66cf: Pull completec6967ed40884: Pull complete86261b212eac: Pull completec593fa27ed82: Pull complete327409bbc709: Pull complete68843b0965c1: Pull complete1dce24306ea4: Pull completed41b89be77dc: Pull completea847491754f8: Pull complete2ba6e682b334: Pull complete88783f87eac5: Pull complete94a228a5ee2b: Pull completeeffccec7e4d4: Pull complete2f4d54523759: Pull completec433d8fc16c8: Pull completee8dea40a6ae6: Pull complete5be5b25f37bd: Pull complete8a320261bc75: Pull completef36d6c98cb79: Pull complete48745103a26a: Pull complete2c60e853f538: Pull complete303d675deef6: Pull complete10d6d5991602: Pull complete49510a9bffbc: Pull completeDigest: sha256:40e86c2b4445dd7c40b427d465672f4f0d7e5e6d40b5e43edf29b930a4cc6745Status: Downloaded newer image for ocaml/opam@sha256:40e86c2b4445dd7c40b427d465672f4f0d7e5e6d40b5e43edf29b930a4cc67452026-04-16 16:44.46 ---> using "5a3680208c73beb3331771a2f7c7cfa44299220a0d1ff13e680cdae5b80bdaf8" from cache/: (comment opensuse-15.6-5.4_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"))2026-04-16 16:44.46 ---> using "463c319ef5be82dadb4076ef7cbdb1657274c5987ad974c76f4520c6671653ad" 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] Initialised2026-04-16 16:44.47 ---> using "78bb359f9aafa4629dc59de13b9deb4bc92d380688527008853d4cbf7d329c49" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-107-genericThe OCaml toplevel, version 5.4.12.5.02026-04-16 16:44.47 ---> using "f6fc4b12b0418b37aa6f9f032abf9c0881c3fa85253a420db64176a4057fa51e" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-04-16 16:44.47 ---> using "1b29546a3142f107d43752c85d792b294550aa31a3a2bc5277f7fff61f0aa274" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEAD42844088d7..0b0acbee05 master -> origin/master5f7bb1a6e6 Merge pull request #29704 from shonfeder/release-dune-3.22.2<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repositoryEverything as up-to-date as possibleHowever, 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)2026-04-16 16:44.48 ---> using "69caec99b1c1221a25fb36fbb4df7e98d210a99338f6f0e726b6300f06edca34" from cache/src: (copy (src lwt_eio.opam) (dst ./))tar: src/./lwt_eio.opam: Cannot open: No such file or directorytar: Exiting with failure status due to previous errors"tar" "-xf" "-" failed with exit status 22026-04-16 16:44.49: Job failed: Failed: Build failed