2026-05-13 10:19.06: New job: test mirage/alcotest https://github.com/mirage/alcotest.git#refs/pull/433/head (86c30479678704188720a25351efaae6697aa75d) (linux-x86_64:(lower-bound))Base: ocaml/opam:debian-13-ocaml-4.11@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440cOpam project buildTo reproduce locally:git clone --recursive "https://github.com/mirage/alcotest.git" && cd "alcotest" && git fetch origin "refs/pull/433/head" && git reset --hard 86c30479cat > Dockerfile <<'END-OF-DOCKERFILE'FROM ocaml/opam:debian-13-ocaml-4.11@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c# debian-13-4.11_opam-2.5USER 1000:1000ENV CLICOLOR_FORCE="1"ENV OPAMCOLOR="always"WORKDIR /srcRUN sudo ln -f /usr/bin/opam-2.5 /usr/bin/opamRUN cd ~/opam-repository && (git cat-file -e 4ae3c774e4a07972d8dc71ead3a8294779f6dada || git fetch origin master) && git reset -q --hard 4ae3c774e4a07972d8dc71ead3a8294779f6dada && git log --no-decorate -n1 --onelineRUN opam init --reinit -niRUN uname -rs && opam exec -- ocaml -version && opam --versionWORKDIR /srcRUN sudo chown opam /srcRUN opam update -uCOPY --chown=1000:1000 alcotest.opam alcotest-mirage.opam alcotest-lwt.opam alcotest-js.opam alcotest-async.opam ./RUN opam pin add -yn alcotest.dev './' && \opam pin add -yn alcotest-mirage.dev './' && \opam pin add -yn alcotest-lwt.dev './' && \opam pin add -yn alcotest-js.dev './' && \opam pin add -yn alcotest-async.dev './'RUN echo '(lang dune 3.0)' > './dune-project'ENV DEPS="astring.0.8.3 base-bigarray.base base-bytes.base base-threads.base base-unix.base biniou.1.2.0 cmdliner.1.3.0 conf-m4.1 conf-npm.1 conf-which.1 cppo.1.6.1 dune.3.10.0 dune-configurator.2.5.1 dune-private-libs.2.5.1 duration.0.2.1 easy-format.1.0.1 fmt.0.8.8 gen.0.2.2 jbuilder.1.0+beta20.1 js_of_ocaml-compiler.5.8.1 logs.0.7.0 lwt.4.2.0 menhir.20200123 menhirLib.20200123 menhirSdk.20200123 mirage-clock.2.0.0 mirage-device.1.2.0 mmap.1.0.2 ocaml.4.11.2 ocaml-base-compiler.4.11.2 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocaml-migrate-parsetree.2.1.0 ocaml-syntax-shims.1.0.0 ocamlbuild.0.14.0 ocamlfind.1.8.1 ppx_derivers.1.0 ppxlib.0.20.0 re.1.7.2 result.1.5 sedlex.2.3 seq.0.3 sexplib0.v0.12.0 stdlib-shims.0.1.0 topkg.1.0.8 uchar.0.0.2 uutf.1.0.3 yojson.1.5.0"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.5 --depext-only -y alcotest.dev alcotest-mirage.dev alcotest-lwt.dev alcotest-js.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . /srcRUN opam exec -- dune build --only-packages=alcotest,alcotest-mirage,alcotest-lwt,alcotest-js @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-05-13 10:19.06: Using cache hint "mirage/alcotest-ocaml/opam:debian-13-ocaml-4.11@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c-debian-13-4.11_opam-2.5-1791e1d7b9f884dacf3065ee6584d0ae"2026-05-13 10:19.06: Using OBuilder spec:((from ocaml/opam:debian-13-ocaml-4.11@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c)(comment debian-13-4.11_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 (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 4ae3c774e4a07972d8dc71ead3a8294779f6dada || git fetch origin master) && git reset -q --hard 4ae3c774e4a07972d8dc71ead3a8294779f6dada && git log --no-decorate -n1 --oneline"))(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 "opam update -u"))(copy (src alcotest.opam alcotest-mirage.opam alcotest-lwt.opam alcotest-js.opam alcotest-async.opam)(dst ./))(run (network host)(shell "opam pin add -yn alcotest.dev './' && \\nopam pin add -yn alcotest-mirage.dev './' && \\nopam pin add -yn alcotest-lwt.dev './' && \\nopam pin add -yn alcotest-js.dev './' && \\nopam pin add -yn alcotest-async.dev './'"))(run (shell "echo '(lang dune 3.0)' > './dune-project'"))(env DEPS "astring.0.8.3 base-bigarray.base base-bytes.base base-threads.base base-unix.base biniou.1.2.0 cmdliner.1.3.0 conf-m4.1 conf-npm.1 conf-which.1 cppo.1.6.1 dune.3.10.0 dune-configurator.2.5.1 dune-private-libs.2.5.1 duration.0.2.1 easy-format.1.0.1 fmt.0.8.8 gen.0.2.2 jbuilder.1.0+beta20.1 js_of_ocaml-compiler.5.8.1 logs.0.7.0 lwt.4.2.0 menhir.20200123 menhirLib.20200123 menhirSdk.20200123 mirage-clock.2.0.0 mirage-device.1.2.0 mmap.1.0.2 ocaml.4.11.2 ocaml-base-compiler.4.11.2 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocaml-migrate-parsetree.2.1.0 ocaml-syntax-shims.1.0.0 ocamlbuild.0.14.0 ocamlfind.1.8.1 ppx_derivers.1.0 ppxlib.0.20.0 re.1.7.2 result.1.5 sedlex.2.3 seq.0.3 sexplib0.v0.12.0 stdlib-shims.0.1.0 topkg.1.0.8 uchar.0.0.2 uutf.1.0.3 yojson.1.5.0")(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 alcotest.dev alcotest-mirage.dev alcotest-lwt.dev alcotest-js.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 --only-packages=alcotest,alcotest-mirage,alcotest-lwt,alcotest-js @install @check @runtest && rm -rf _build")))2026-05-13 10:19.06: Waiting for resource in pool OCluster2026-05-13 10:47.33: Waiting for worker…2026-05-13 10:49.22: Got resource from pool OClusterBuilding on phoebe.caelum.ci.devAll commits already cachedHEAD is now at 86c3047 Try to trigger segfault on mac(from ocaml/opam:debian-13-ocaml-4.11@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c)Unable to find image 'ocaml/opam:debian-13-ocaml-4.11@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c' locallydocker.io/ocaml/opam@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c: Pulling from ocaml/opam307f8152a55e: Already exists53d481666795: Already exists4ee22a5df705: Already existsae88ba2e7c99: Already exists466fcae906a3: Already exists024abae8c1ed: Already existsd582ebdec32b: Already existsaa12715098f1: Already exists62299cb9f759: Already existsa25072680c61: Already exists43b56dd9ccf7: Already exists244d3fc9f983: Already existsc4fb47424a8f: Already existscf6798d648a4: Already exists279a991ac05e: Already existscf66fc12d100: Already existscf66fc12d100: Already existsd39d0e8ae83c: Already exists4b54e9cd8568: Already existsf65d25bce8ea: Already exists7d77baca5957: Already exists4f4fb700ef54: Already existsa99a940ecfac: Already existsf5264679c08b: Already existsf2b70106109c: Already existsb37088730bad: Already existscbd33ffade5f: Already existsf1cf9ab18ca0: Already exists87f3d72372a4: Already exists25d15f09ece2: Already exists6304df60357e: Already exists34a8ea3e9b48: Already existsa0636f21098e: Already exists9511add15c87: Already exists963ec00065e9: Already exists3a098b8178a5: Already existsca1c1d43252a: Already existsca50eb78767c: Already exists85fc1e77225e: Already exists088f7de253ad: Already existsa3252813698b: Pulling fs layer29c18e123b7c: Pulling fs layerf9fe8a9fcba5: Pulling fs layer29c18e123b7c: Waitingc7ffbe2d1595: Pulling fs layerf9fe8a9fcba5: Waitingc7ffbe2d1595: Waiting29c18e123b7c: Download completef9fe8a9fcba5: Verifying Checksumf9fe8a9fcba5: Download completec7ffbe2d1595: Verifying Checksumc7ffbe2d1595: Download completea3252813698b: Verifying Checksuma3252813698b: Download completea3252813698b: Pull complete29c18e123b7c: Pull completef9fe8a9fcba5: Pull completec7ffbe2d1595: Pull completeDigest: sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440cStatus: Downloaded newer image for ocaml/opam@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c2026-05-13 10:49.30 ---> using "36abb6db1723167d15c41f53ef05d371444812dc64e2ea7fe109d222db988473" from cache/: (comment debian-13-4.11_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"))2026-05-13 10:49.30 ---> using "8b6c3f9b20d6c3beeb84a8d52ac5abfb97ee836913fb82a0f86bfdcf7eb71547" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 4ae3c774e4a07972d8dc71ead3a8294779f6dada || git fetch origin master) && git reset -q --hard 4ae3c774e4a07972d8dc71ead3a8294779f6dada && git log --no-decorate -n1 --oneline"))4ae3c774e4 Merge pull request #29579 from ocaml/add-msys2-depexts2026-05-13 10:49.31 ---> using "54f96e68ea5840d69b4f02846708b193c7a3c7a8b89c58ccdd59dd408cc89131" 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 2.1 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 1 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=1 --globalFormat upgrade done.<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repository2026-05-13 10:49.34 ---> using "2e0488c85be23cfa510e6ed517b32de1968c6ef0872055c2e53d8cd567d53531" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-111-genericThe OCaml toplevel, version 4.11.22.5.12026-05-13 10:49.34 ---> using "2e3f19834893eb0759c86b2e011bf3b52c3aa4c6e95eb8613bc712c32121d5d7" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-05-13 10:49.35 ---> using "6f860519618ac6071ef972da70b2fd5c8de012ce87d22609f5f2a49241b2d26e" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "opam update -u"))<><> 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).The following packages are not being upgraded because the new versions conflict with other installed packages:- ocaml.5.5.0- ocaml-config.3However, 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)2026-05-13 10:49.36 ---> using "7a3f34e1cf8732e7a22e946b952071a1ceef433d7611e04e2d67e9bac206c064" from cache/src: (copy (src alcotest.opam alcotest-mirage.opam alcotest-lwt.opam alcotest-js.opam alcotest-async.opam)(dst ./))2026-05-13 10:49.36 ---> using "bb264f9e11b93fa740647f3ece1abb38d5d7706d6d50de48b5fd7976c5823238" from cache/src: (run (network host)(shell "opam pin add -yn alcotest.dev './' && \\nopam pin add -yn alcotest-mirage.dev './' && \\nopam pin add -yn alcotest-lwt.dev './' && \\nopam pin add -yn alcotest-js.dev './' && \\nopam pin add -yn alcotest-async.dev './'"))[alcotest.dev] synchronised (file:///src)alcotest is now pinned to file:///src (version dev)[alcotest-mirage.dev] synchronised (file:///src)alcotest-mirage is now pinned to file:///src (version dev)[alcotest-lwt.dev] synchronised (file:///src)alcotest-lwt is now pinned to file:///src (version dev)[alcotest-js.dev] synchronised (file:///src)alcotest-js is now pinned to file:///src (version dev)[alcotest-async.dev] synchronised (file:///src)alcotest-async is now pinned to file:///src (version dev)2026-05-13 10:49.38 ---> using "0c7c884d15c6814fc1bc7c3f68455e39cc6bbd30d1fadb294aefdb7ad9c8336e" from cache/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))Uncaught exception: Unix.Unix_error(Unix.ENOENT, "open", "/var/cache/obuilder/in-progress/c216149003711f084dd5bf9cefc9bbc962b30c4b7a50db86e60de3777e06b954/log")2026-05-13 10:50.18: Job failed: Failed: Internal error