2026-04-14 08:11.59: New job: test janestreet/spawn https://github.com/janestreet/spawn.git#refs/heads/master (fe3419b0db20819d7a31383544971e48a6dff20a) (macos-arm64:macos-homebrew-4.14_arm64_opam-2.5)Base: macos-homebrew-ocaml-4.14Opam project buildTo reproduce locally:git clone --recursive "https://github.com/janestreet/spawn.git" -b "master" && cd "spawn" && git reset --hard fe3419b0cat > Dockerfile <<'END-OF-DOCKERFILE'FROM macos-homebrew-ocaml-4.14# macos-homebrew-4.14_arm64_opam-2.5USER 1000:1000ENV CLICOLOR_FORCE="1"ENV OPAMCOLOR="always"RUN ln -f ~/local/bin/opam-2.5 ~/local/bin/opamRUN opam init --reinit -niRUN uname -rs && opam exec -- ocaml -version && opam --versionRUN 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 spawn.opam ./src/./RUN opam pin add -yn spawn.dev './src/./'RUN echo '(lang dune 3.0)' > './src/./dune-project'ENV DEPS="base.v0.16.4 base-bigarray.base base-threads.base base-unix.base csexp.1.5.2 dune.3.22.2 dune-configurator.3.22.2 jane-street-headers.v0.16.0 jst-config.v0.16.0 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-compiler-libs.v0.12.4 ocaml-config.2 ocaml-options-vanilla.1 ppx_assert.v0.16.0 ppx_base.v0.16.0 ppx_cold.v0.16.0 ppx_compare.v0.16.0 ppx_derivers.1.2.1 ppx_enumerate.v0.16.0 ppx_expect.v0.16.2 ppx_globalize.v0.16.0 ppx_hash.v0.16.0 ppx_here.v0.16.0 ppx_inline_test.v0.16.1 ppx_optcomp.v0.16.0 ppx_sexp_conv.v0.16.0 ppxlib.0.35.0 re.1.14.0 sexplib0.v0.16.0 stdio.v0.16.0 stdlib-shims.0.3.0 time_now.v0.16.0"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.5 --depext-only -y spawn.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . ./srcRUN cd ./src && opam exec -- dune build @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-04-14 08:11.59: Using cache hint "janestreet/spawn-macos-homebrew-ocaml-4.14-macos-homebrew-4.14_arm64_opam-2.5-229b6641373f4527b3463ab8913b0da4"2026-04-14 08:11.59: Using OBuilder spec:((from macos-homebrew-ocaml-4.14)(comment macos-homebrew-4.14_arm64_opam-2.5)(user (uid 1000) (gid 1000))(env CLICOLOR_FORCE 1)(env OPAMCOLOR always)(run (shell "ln -f ~/local/bin/opam-2.5 ~/local/bin/opam"))(run (shell "opam init --reinit -ni"))(run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))(run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(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 spawn.opam) (dst ./src/./))(run (network host)(shell "opam pin add -yn spawn.dev './src/./'"))(run (shell "echo '(lang dune 3.0)' > './src/./dune-project'"))(env DEPS "base.v0.16.4 base-bigarray.base base-threads.base base-unix.base csexp.1.5.2 dune.3.22.2 dune-configurator.3.22.2 jane-street-headers.v0.16.0 jst-config.v0.16.0 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-compiler-libs.v0.12.4 ocaml-config.2 ocaml-options-vanilla.1 ppx_assert.v0.16.0 ppx_base.v0.16.0 ppx_cold.v0.16.0 ppx_compare.v0.16.0 ppx_derivers.1.2.1 ppx_enumerate.v0.16.0 ppx_expect.v0.16.2 ppx_globalize.v0.16.0 ppx_hash.v0.16.0 ppx_here.v0.16.0 ppx_inline_test.v0.16.1 ppx_optcomp.v0.16.0 ppx_sexp_conv.v0.16.0 ppxlib.0.35.0 re.1.14.0 sexplib0.v0.16.0 stdio.v0.16.0 stdlib-shims.0.3.0 time_now.v0.16.0")(env CI true)(env OCAMLCI true)(run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(network host)(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y spawn.dev $DEPS"))(run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(network host)(shell "opam install $DEPS"))(copy (src .) (dst ./src))(run (shell "cd ./src && opam exec -- dune build @install @check @runtest && rm -rf _build")))2026-04-14 08:11.59: Waiting for resource in pool OCluster2026-04-14 16:44.53: Waiting for worker…2026-04-14 20:20.24: Got resource from pool OClusterBuilding on m1-worker-01All commits already cachedHEAD is now at fe3419b Do not require C99 mode for older GCC (#62)(from macos-homebrew-ocaml-4.14)2026-04-14 20:20.24 ---> using "0c60f117aee57abea8364cb033d47bb1d63ff0f68e5ee97378e032498e8442af" from cache/: (comment macos-homebrew-4.14_arm64_opam-2.5)/: (user (uid 1000) (gid 1000))/: (env CLICOLOR_FORCE 1)/: (env OPAMCOLOR always)/: (run (shell "ln -f ~/local/bin/opam-2.5 ~/local/bin/opam"))2026-04-14 20:20.24 ---> using "75b1629629d7f21c50a7e1e39b2ef83e2edb8ace81aab34254c0c8782b814749" from cache/: (run (shell "opam init --reinit -ni"))No configuration file found, using 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 /Users/mac1000/.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] no changes from git+file:///Users/mac1000/opam-repository2026-04-14 20:20.24 ---> using "a61e945ab7671a6fff400f946e3fe88df4d67a783ea1f56fa59dc21595ef1b19" from cache/: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Darwin 24.5.0The OCaml toplevel, version 4.14.22.5.02026-04-14 20:20.25 ---> using "11a9923a4c4f0ab256d15330129e4c4938459d2e6239eb4f7bdf0f2620300e09" from cache/: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(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_HEAD043b6ea343..5f7bb1a6e6 master -> origin/master5f7bb1a6e6 Merge pull request #29704 from shonfeder/release-dune-3.22.2<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///Users/mac1000/opam-repositoryEverything as up-to-date as possibleThe 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)2026-04-14 20:20.25 ---> using "b14579ae280cd8323f5f35223b57e21bff85c0ab5d30339daad34ff9e70be56f" from cache/: (copy (src spawn.opam) (dst ./src/./))2026-04-14 20:20.26 ---> saved as "6884a82461789b904cfc603a641d2bcf406970059edd91e82a117c362e749400"/: (run (network host)(shell "opam pin add -yn spawn.dev './src/./'"))[spawn.dev] synchronised (file:///Users/mac1000/src)spawn is now pinned to file:///Users/mac1000/src (version dev)2026-04-14 20:20.36 ---> saved as "d01188b614bf153b7e6fed7c176f381e3ef111ba6f081b726ca22fb75084dcb7"/: (run (shell "echo '(lang dune 3.0)' > './src/./dune-project'"))2026-04-14 20:20.37 ---> saved as "73e90c516a85dc743c7775b566d7dffb9b4751a99646433b5fbf2d3799b91d3f"/: (env DEPS "base.v0.16.4 base-bigarray.base base-threads.base base-unix.base csexp.1.5.2 dune.3.22.2 dune-configurator.3.22.2 jane-street-headers.v0.16.0 jst-config.v0.16.0 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-compiler-libs.v0.12.4 ocaml-config.2 ocaml-options-vanilla.1 ppx_assert.v0.16.0 ppx_base.v0.16.0 ppx_cold.v0.16.0 ppx_compare.v0.16.0 ppx_derivers.1.2.1 ppx_enumerate.v0.16.0 ppx_expect.v0.16.2 ppx_globalize.v0.16.0 ppx_hash.v0.16.0 ppx_here.v0.16.0 ppx_inline_test.v0.16.1 ppx_optcomp.v0.16.0 ppx_sexp_conv.v0.16.0 ppxlib.0.35.0 re.1.14.0 sexplib0.v0.16.0 stdio.v0.16.0 stdlib-shims.0.3.0 time_now.v0.16.0")/: (env CI true)/: (env OCAMLCI true)/: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(network host)(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y spawn.dev $DEPS"))+ /opt/homebrew/bin/brew "update"- ==> Updating Homebrew...- Already up-to-date.<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[spawn.dev] synchronised (file:///Users/mac1000/src)[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).[NOTE] Package ocaml-config is already installed (current version is 2).[NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.2).[NOTE] Package ocaml is already installed (current version is 4.14.2).[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-bigarray is already installed (current version is base).# To update the current shell environment, run: eval $(opam env)2026-04-14 20:21.12 ---> saved as "a85f32dbb04bfac1dd933721734871cdabd90afe72e8e9c49b04143b6595ef98"/: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(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 2).[NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.2).[NOTE] Package ocaml is already installed (current version is 4.14.2).[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-bigarray is already installed (current version is base).The following actions will be performed:=== install 26 packages- install base v0.16.4- install csexp 1.5.2- install dune 3.22.2- install dune-configurator 3.22.2- install jane-street-headers v0.16.0- install jst-config v0.16.0- install ocaml-compiler-libs v0.12.4- install ppx_assert v0.16.0- install ppx_base v0.16.0- install ppx_cold v0.16.0- install ppx_compare v0.16.0- install ppx_derivers 1.2.1- install ppx_enumerate v0.16.0- install ppx_expect v0.16.2- install ppx_globalize v0.16.0- install ppx_hash v0.16.0- install ppx_here v0.16.0- install ppx_inline_test v0.16.1- install ppx_optcomp v0.16.0- install ppx_sexp_conv v0.16.0- install ppxlib 0.35.0- install re 1.14.0- install sexplib0 v0.16.0- install stdio v0.16.0- install stdlib-shims 0.3.0- install time_now v0.16.0<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved csexp.1.5.2 (cached)-> retrieved base.v0.16.4 (cached)-> retrieved jane-street-headers.v0.16.0 (cached)-> retrieved jst-config.v0.16.0 (cached)-> retrieved ocaml-compiler-libs.v0.12.4 (cached)-> retrieved ppx_assert.v0.16.0 (cached)-> retrieved ppx_base.v0.16.0 (cached)-> retrieved ppx_cold.v0.16.0 (cached)-> retrieved ppx_compare.v0.16.0 (cached)-> retrieved ppx_derivers.1.2.1 (cached)-> retrieved ppx_enumerate.v0.16.0 (cached)-> retrieved ppx_globalize.v0.16.0 (cached)-> retrieved ppx_expect.v0.16.2 (cached)-> retrieved ppx_hash.v0.16.0 (cached)-> retrieved ppx_here.v0.16.0 (cached)-> retrieved ppx_inline_test.v0.16.1 (cached)-> retrieved ppx_optcomp.v0.16.0 (cached)-> retrieved ppx_sexp_conv.v0.16.0 (cached)-> retrieved re.1.14.0 (cached)-> retrieved sexplib0.v0.16.0 (cached)-> retrieved stdio.v0.16.0 (cached)-> retrieved stdlib-shims.0.3.0 (cached)-> retrieved time_now.v0.16.0 (cached)-> retrieved ppxlib.0.35.0 (cached)-> retrieved dune.3.22.2, dune-configurator.3.22.2 (cached)-> installed dune.3.22.2-> installed jane-street-headers.v0.16.0-> installed ppx_derivers.1.2.1-> installed csexp.1.5.2-> installed stdlib-shims.0.3.0-> installed sexplib0.v0.16.0-> installed re.1.14.0-> installed ocaml-compiler-libs.v0.12.4-> installed dune-configurator.3.22.2-> installed base.v0.16.4-> installed stdio.v0.16.0-> installed ppxlib.0.35.0-> installed ppx_here.v0.16.0-> installed ppx_cold.v0.16.0-> installed ppx_globalize.v0.16.0-> installed ppx_enumerate.v0.16.0-> installed ppx_compare.v0.16.0-> installed ppx_optcomp.v0.16.0-> installed ppx_sexp_conv.v0.16.0-> installed ppx_hash.v0.16.0-> installed ppx_assert.v0.16.0-> installed ppx_base.v0.16.0-> installed jst-config.v0.16.0-> installed time_now.v0.16.0-> installed ppx_inline_test.v0.16.1-> installed ppx_expect.v0.16.2Done.# To update the current shell environment, run: eval $(opam env)2026-04-14 20:22.14 ---> saved as "7fc29ace908f5493ded93b854b0be1213860b8fe1f480e83257fedbaeb541de8"/: (copy (src .) (dst ./src))2026-04-14 20:22.15 ---> saved as "8d1199be0e2bc7bfc29b44828962094f29cd319111cab57dc61ab62043fc48ab"/: (run (shell "cd ./src && opam exec -- dune build @install @check @runtest && rm -rf _build"))File "bench/dune", line 5, characters 7-16:5 | (pps ppx_bench)))^^^^^^^^^Error: Library "ppx_bench" not found.-> required by _build/default/bench/.merlin-conf/lib-spawn_bench-> required by alias bench/check"/usr/bin/env" "bash" "-c" "cd ./src && opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 12026-04-14 20:22.21: Job failed: Failed: Build failed