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-4.14 Opam project build To reproduce locally: git clone --recursive "https://github.com/janestreet/spawn.git" -b "master" && cd "spawn" && git reset --hard fe3419b0 cat > Dockerfile <<'END-OF-DOCKERFILE' FROM macos-homebrew-ocaml-4.14 # macos-homebrew-4.14_arm64_opam-2.5 USER 1000:1000 ENV CLICOLOR_FORCE="1" ENV OPAMCOLOR="always" RUN ln -f ~/local/bin/opam-2.5 ~/local/bin/opam RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version RUN 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 --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 $DEPS RUN opam install $DEPS COPY --chown=1000:1000 . ./src RUN cd ./src && opam exec -- dune build @install @check @runtest && rm -rf _build END-OF-DOCKERFILE docker build . END-REPRO-BLOCK 2026-04-14 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 OCluster 2026-04-14 16:44.53: Waiting for worker… 2026-04-14 20:20.24: Got resource from pool OCluster Building on m1-worker-01 All commits already cached HEAD 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 --global Format upgrade done. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] no changes from git+file:///Users/mac1000/opam-repository 2026-04-14 20:20.24 ---> using "a61e945ab7671a6fff400f946e3fe88df4d67a783ea1f56fa59dc21595ef1b19" from cache /: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Darwin 24.5.0 The OCaml toplevel, version 4.14.2 2.5.0 2026-04-14 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_HEAD 043b6ea343..5f7bb1a6e6 master -> origin/master 5f7bb1a6e6 Merge pull request #29704 from shonfeder/release-dune-3.22.2 <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///Users/mac1000/opam-repository Everything as up-to-date as possible 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) 2026-04-14 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.v0.16.2 Done. # 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 1 2026-04-14 20:22.21: Job failed: Failed: Build failed