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@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c Opam project build To reproduce locally: git clone --recursive "https://github.com/mirage/alcotest.git" && cd "alcotest" && git fetch origin "refs/pull/433/head" && git reset --hard 86c30479 cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:debian-13-ocaml-4.11@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c # debian-13-4.11_opam-2.5 USER 1000:1000 ENV CLICOLOR_FORCE="1" ENV OPAMCOLOR="always" WORKDIR /src RUN sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam RUN cd ~/opam-repository && (git cat-file -e 4ae3c774e4a07972d8dc71ead3a8294779f6dada || git fetch origin master) && git reset -q --hard 4ae3c774e4a07972d8dc71ead3a8294779f6dada && git log --no-decorate -n1 --oneline RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version WORKDIR /src RUN sudo chown opam /src RUN opam update -u COPY --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 $DEPS RUN opam install $DEPS COPY --chown=1000:1000 . /src RUN opam exec -- dune build --only-packages=alcotest,alcotest-mirage,alcotest-lwt,alcotest-js @install @check @runtest && rm -rf _build END-OF-DOCKERFILE docker build . END-REPRO-BLOCK 2026-05-13 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 OCluster 2026-05-13 10:47.33: Waiting for worker… 2026-05-13 10:49.22: Got resource from pool OCluster Building on phoebe.caelum.ci.dev All commits already cached HEAD 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' locally docker.io/ocaml/opam@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c: Pulling from ocaml/opam 307f8152a55e: Already exists 53d481666795: Already exists 4ee22a5df705: Already exists ae88ba2e7c99: Already exists 466fcae906a3: Already exists 024abae8c1ed: Already exists d582ebdec32b: Already exists aa12715098f1: Already exists 62299cb9f759: Already exists a25072680c61: Already exists 43b56dd9ccf7: Already exists 244d3fc9f983: Already exists c4fb47424a8f: Already exists cf6798d648a4: Already exists 279a991ac05e: Already exists cf66fc12d100: Already exists cf66fc12d100: Already exists d39d0e8ae83c: Already exists 4b54e9cd8568: Already exists f65d25bce8ea: Already exists 7d77baca5957: Already exists 4f4fb700ef54: Already exists a99a940ecfac: Already exists f5264679c08b: Already exists f2b70106109c: Already exists b37088730bad: Already exists cbd33ffade5f: Already exists f1cf9ab18ca0: Already exists 87f3d72372a4: Already exists 25d15f09ece2: Already exists 6304df60357e: Already exists 34a8ea3e9b48: Already exists a0636f21098e: Already exists 9511add15c87: Already exists 963ec00065e9: Already exists 3a098b8178a5: Already exists ca1c1d43252a: Already exists ca50eb78767c: Already exists 85fc1e77225e: Already exists 088f7de253ad: Already exists a3252813698b: Pulling fs layer 29c18e123b7c: Pulling fs layer f9fe8a9fcba5: Pulling fs layer 29c18e123b7c: Waiting c7ffbe2d1595: Pulling fs layer f9fe8a9fcba5: Waiting c7ffbe2d1595: Waiting 29c18e123b7c: Download complete f9fe8a9fcba5: Verifying Checksum f9fe8a9fcba5: Download complete c7ffbe2d1595: Verifying Checksum c7ffbe2d1595: Download complete a3252813698b: Verifying Checksum a3252813698b: Download complete a3252813698b: Pull complete 29c18e123b7c: Pull complete f9fe8a9fcba5: Pull complete c7ffbe2d1595: Pull complete Digest: sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c Status: Downloaded newer image for ocaml/opam@sha256:6c34153b2b07fc0f884e792a60178e250c2d06a45050e01ed0883a67ec11440c 2026-05-13 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-depexts 2026-05-13 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 --global Format upgrade done. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository 2026-05-13 10:49.34 ---> using "2e0488c85be23cfa510e6ed517b32de1968c6ef0872055c2e53d8cd567d53531" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-111-generic The OCaml toplevel, version 4.11.2 2.5.1 2026-05-13 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-repository Everything 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.3 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) 2026-05-13 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