2026-03-31 14:33.47: New job: test ocaml-multicore/picos https://github.com/ocaml-multicore/picos.git#refs/heads/experimental-htbl (9e5f75c168e81a79badf0bb31d5c17d606ca556b) (windows-x86_64:windows-server-mingw-ltsc2025-5.4_opam-2.5)Base: ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:0e4fa08d05a319101c6ab90f612f6b79d83aa94d5df9b492774b9176694093e1Opam project buildTo reproduce locally:git clone --recursive "https://github.com/ocaml-multicore/picos.git" -b "experimental-htbl" && cd "picos" && git reset --hard 9e5f75c1cat > Dockerfile <<'END-OF-DOCKERFILE'FROM ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:0e4fa08d05a319101c6ab90f612f6b79d83aa94d5df9b492774b9176694093e1# windows-server-mingw-ltsc2025-5.4_opam-2.5USER 1000:1000ENV CLICOLOR_FORCE="1"ENV OPAMCOLOR="always"RUN ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opamRUN opam init --reinit -niRUN uname -rs && opam exec -- ocaml -version && opam --versionRUN cd ~/opam-repository && (git cat-file -e fa13386c66935e14b279e9af8d7c721a841edf96 || git fetch origin master) && git reset -q --hard fa13386c66935e14b279e9af8d7c721a841edf96 && git log --no-decorate -n1 --oneline && opam update -uCOPY --chown=1000:1000 picos_std.opam picos_mux.opam picos_meta.opam picos_lwt.opam picos_io_cohttp.opam picos_io.opam picos_aux.opam picos.opam /cygwin64/home/opam/src/./RUN opam pin add -yn picos_std.dev '/cygwin64/home/opam/src/./' && \opam pin add -yn picos_mux.dev '/cygwin64/home/opam/src/./' && \opam pin add -yn picos_meta.dev '/cygwin64/home/opam/src/./' && \opam pin add -yn picos_lwt.dev '/cygwin64/home/opam/src/./' && \opam pin add -yn picos_io_cohttp.dev '/cygwin64/home/opam/src/./' && \opam pin add -yn picos_io.dev '/cygwin64/home/opam/src/./' && \opam pin add -yn picos_aux.dev '/cygwin64/home/opam/src/./' && \opam pin add -yn picos.dev '/cygwin64/home/opam/src/./'RUN echo '(lang dune 3.0)' > '/home/opam/src/./dune-project'ENV DEPS="alcotest.1.9.1 angstrom.0.16.1 arch-x86_64.1 astring.0.8.5 backoff.0.1.1 base.v0.17.3 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base base64.3.5.2 bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.2.1.0 cohttp.6.2.1 cohttp-lwt.6.2.1 conf-mingw-w64-gcc-x86_64.1 containers.3.18 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain-name.0.5.0 domain_shims.0.1.0 dscheck.0.5.0 dune.3.22.0 dune-configurator.3.22.0 either.1.0.0 flexdll.0.44 fmt.0.11.0 gen.1.1 host-arch-x86_64.1 host-system-mingw.1 http.6.2.1 ipaddr.5.6.2 js_of_ocaml.6.3.2 js_of_ocaml-compiler.6.3.2 logs.0.10.0 lwt.6.1.1 macaddr.5.6.2 mdx.2.5.2 menhir.20260209 menhirCST.20260209 menhirGLR.20260209 menhirLib.20260209 menhirSdk.20260209 mingw-w64-shims.0.2.0 mtime.2.1.0 multicore-bench.0.1.7 multicore-magic.2.3.2 multicore-magic-dscheck.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-env-mingw64.1 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.4 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 oseq.0.5.1 ppx_derivers.1.2.1 ppx_sexp_conv.v0.17.1 ppxlib.0.38.0 ppxlib_jane.v0.17.4 psq.0.2.1 qcheck-core.0.91 qcheck-multicoretests-util.0.10 qcheck-stm.0.10 re.1.14.0 result.1.5 sedlex.3.7 seq.base sexplib0.v0.17.0 stdlib-shims.0.3.0 stringext.1.6.0 system-mingw.1 thread-local-storage.0.2 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uri.4.4.0 uri-sexp.4.4.0 uutf.1.0.4 yojson.3.0.0"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.5 --depext-only -y picos_std.dev picos_mux.dev picos_meta.dev picos_lwt.dev picos_io_cohttp.dev picos_io.dev picos_aux.dev picos.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . /cygwin64/home/opam/srcRUN cd /home/opam/src && opam exec -- dune build @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-03-31 14:33.47: Using cache hint "ocaml-multicore/picos-ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:0e4fa08d05a319101c6ab90f612f6b79d83aa94d5df9b492774b9176694093e1-windows-server-mingw-ltsc2025-5.4_opam-2.5-30e322184033b851d70b7e5483d3c756"2026-03-31 14:33.47: Using OBuilder spec:((from ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:0e4fa08d05a319101c6ab90f612f6b79d83aa94d5df9b492774b9176694093e1)(comment windows-server-mingw-ltsc2025-5.4_opam-2.5)(user (uid 1000) (gid 1000))(env CLICOLOR_FORCE 1)(env OPAMCOLOR always)(run (shell "ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam"))(run (shell "opam init --reinit -ni"))(run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))(run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))(network host)(shell "cd ~/opam-repository && (git cat-file -e fa13386c66935e14b279e9af8d7c721a841edf96 || git fetch origin master) && git reset -q --hard fa13386c66935e14b279e9af8d7c721a841edf96 && git log --no-decorate -n1 --oneline && opam update -u"))(copy (src picos_std.opam picos_mux.opam picos_meta.opam picos_lwt.opam picos_io_cohttp.opam picos_io.opam picos_aux.opam picos.opam)(dst /cygwin64/home/opam/src/./))(run (network host)(shell "opam pin add -yn picos_std.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_mux.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_meta.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_lwt.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_io_cohttp.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_io.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_aux.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos.dev '/cygwin64/home/opam/src/./'"))(run (shell "echo '(lang dune 3.0)' > '/home/opam/src/./dune-project'"))(env DEPS "alcotest.1.9.1 angstrom.0.16.1 arch-x86_64.1 astring.0.8.5 backoff.0.1.1 base.v0.17.3 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base base64.3.5.2 bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.2.1.0 cohttp.6.2.1 cohttp-lwt.6.2.1 conf-mingw-w64-gcc-x86_64.1 containers.3.18 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain-name.0.5.0 domain_shims.0.1.0 dscheck.0.5.0 dune.3.22.0 dune-configurator.3.22.0 either.1.0.0 flexdll.0.44 fmt.0.11.0 gen.1.1 host-arch-x86_64.1 host-system-mingw.1 http.6.2.1 ipaddr.5.6.2 js_of_ocaml.6.3.2 js_of_ocaml-compiler.6.3.2 logs.0.10.0 lwt.6.1.1 macaddr.5.6.2 mdx.2.5.2 menhir.20260209 menhirCST.20260209 menhirGLR.20260209 menhirLib.20260209 menhirSdk.20260209 mingw-w64-shims.0.2.0 mtime.2.1.0 multicore-bench.0.1.7 multicore-magic.2.3.2 multicore-magic-dscheck.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-env-mingw64.1 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.4 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 oseq.0.5.1 ppx_derivers.1.2.1 ppx_sexp_conv.v0.17.1 ppxlib.0.38.0 ppxlib_jane.v0.17.4 psq.0.2.1 qcheck-core.0.91 qcheck-multicoretests-util.0.10 qcheck-stm.0.10 re.1.14.0 result.1.5 sedlex.3.7 seq.base sexplib0.v0.17.0 stdlib-shims.0.3.0 stringext.1.6.0 system-mingw.1 thread-local-storage.0.2 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uri.4.4.0 uri-sexp.4.4.0 uutf.1.0.4 yojson.3.0.0")(env CI true)(env OCAMLCI true)(run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))(network host)(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y picos_std.dev picos_mux.dev picos_meta.dev picos_lwt.dev picos_io_cohttp.dev picos_io.dev picos_aux.dev picos.dev $DEPS"))(run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))(network host)(shell "opam install $DEPS"))(copy (src .) (dst /cygwin64/home/opam/src))(run (shell "cd /home/opam/src && opam exec -- dune build @install @check @runtest && rm -rf _build")))2026-03-31 14:33.47: Waiting for resource in pool OCluster2026-03-31 14:33.47: Waiting for worker…2026-03-31 17:09.30: Got resource from pool OClusterBuilding on ltsc2025-3All commits already cachedHEAD is now at 9e5f75c Hmm(from ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:0e4fa08d05a319101c6ab90f612f6b79d83aa94d5df9b492774b9176694093e1)2026-03-31 17:33.14 ---> using "e6e8a2cf62a928430568e9b050d6cc986ddb11ca371f3b24e6b6f1ad80860153" from cacheC:/: (comment windows-server-mingw-ltsc2025-5.4_opam-2.5)C:/: (user (uid 1000) (gid 1000))C:/: (env CLICOLOR_FORCE 1)C:/: (env OPAMCOLOR always)C:/: (run (shell "ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam"))2026-03-31 17:33.14 ---> using "8371c7bbeda21231937607a48921d4490a1c9c23810f1d7416ef9e1aa874f8e3" from cacheC:/: (run (shell "opam init --reinit -ni"))No configuration file found, using built-in defaults.<><> Unix support infrastructure ><><><><><><><><><><><><><><><><><><><><><><><>opam and the OCaml ecosystem in general require various Unix tools in order to operate correctly. At present, this requires the installation of Cygwin to provide these tools.How should opam obtain Unix tools?> 1. Use tools found in PATH (Cygwin installation at C:\cygwin64)2. Automatically create an internal Cygwin installation that will be managed by opam (recommended)3. Use Cygwin installation found in C:\cygwin644. Use another existing Cygwin/MSYS2 installation5. Abort initialisation[1/2/3/4/5] 1Checking 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.<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>[default] Initialised2026-03-31 17:33.14 ---> using "8bf506c77ce4ea2b6efe0b049434ba77c8ea5f4c0beccb9cedbfead0127ea0b7" from cacheC:/: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))CYGWIN_NT-10.0-26100 3.6.7-1.x86_64The OCaml toplevel, version 5.4.12.5.02026-03-31 17:33.14 ---> using "017acac92f6c222a89f675ad77684e3ed5874f73aa36dd7947a6dd1cf4a5b5c7" from cacheC:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))(network host)(shell "cd ~/opam-repository && (git cat-file -e fa13386c66935e14b279e9af8d7c721a841edf96 || git fetch origin master) && git reset -q --hard fa13386c66935e14b279e9af8d7c721a841edf96 && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEAD65664dc5b2..fdb5e370d7 master -> origin/masterfa13386c66 Merge pull request #29586 from Julow/release-mdx-2.5.2<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file://C:/cygwin64/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)2026-03-31 17:33.14 ---> using "d01bcbdf97740e3f25576b9653b531076b5a1f16c72f47df39b36eca48f727b3" from cacheC:/: (copy (src picos_std.opam picos_mux.opam picos_meta.opam picos_lwt.opam picos_io_cohttp.opam picos_io.opam picos_aux.opam picos.opam)(dst /cygwin64/home/opam/src/./))2026-03-31 18:04.55 ---> saved as "4a6f85b2e6625371671d0dd85f3a57f179d5544578b3d38ed264f430f4e97739"C:/: (run (network host)(shell "opam pin add -yn picos_std.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_mux.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_meta.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_lwt.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_io_cohttp.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_io.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos_aux.dev '/cygwin64/home/opam/src/./' && \\nopam pin add -yn picos.dev '/cygwin64/home/opam/src/./'"))[picos_std.dev] synchronised (file://C:/cygwin64/home/opam/src)picos_std is now pinned to file://C:/cygwin64/home/opam/src (version dev)[picos_mux.dev] synchronised (file://C:/cygwin64/home/opam/src)picos_mux is now pinned to file://C:/cygwin64/home/opam/src (version dev)[picos_meta.dev] synchronised (file://C:/cygwin64/home/opam/src)picos_meta is now pinned to file://C:/cygwin64/home/opam/src (version dev)[picos_lwt.dev] synchronised (file://C:/cygwin64/home/opam/src)picos_lwt is now pinned to file://C:/cygwin64/home/opam/src (version dev)[picos_io_cohttp.dev] synchronised (file://C:/cygwin64/home/opam/src)picos_io_cohttp is now pinned to file://C:/cygwin64/home/opam/src (version dev)[picos_io.dev] synchronised (file://C:/cygwin64/home/opam/src)picos_io is now pinned to file://C:/cygwin64/home/opam/src (version dev)[picos_aux.dev] synchronised (file://C:/cygwin64/home/opam/src)picos_aux is now pinned to file://C:/cygwin64/home/opam/src (version dev)[picos.dev] synchronised (file://C:/cygwin64/home/opam/src)picos is now pinned to file://C:/cygwin64/home/opam/src (version dev)2026-03-31 18:06.34 ---> saved as "e4797a4b9a8d5ebaf3fd5809489983f408661dbce187ca8a68ebc553a5fbbe51"C:/: (run (shell "echo '(lang dune 3.0)' > '/home/opam/src/./dune-project'"))2026-03-31 18:07.19 ---> saved as "d892e9d8a80bf190921b5f0199962eb88d08328619384b9d0feaa2adf3465b31"C:/: (env DEPS "alcotest.1.9.1 angstrom.0.16.1 arch-x86_64.1 astring.0.8.5 backoff.0.1.1 base.v0.17.3 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base base64.3.5.2 bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.2.1.0 cohttp.6.2.1 cohttp-lwt.6.2.1 conf-mingw-w64-gcc-x86_64.1 containers.3.18 cppo.1.8.0 csexp.1.5.2 domain-local-await.1.0.1 domain-name.0.5.0 domain_shims.0.1.0 dscheck.0.5.0 dune.3.22.0 dune-configurator.3.22.0 either.1.0.0 flexdll.0.44 fmt.0.11.0 gen.1.1 host-arch-x86_64.1 host-system-mingw.1 http.6.2.1 ipaddr.5.6.2 js_of_ocaml.6.3.2 js_of_ocaml-compiler.6.3.2 logs.0.10.0 lwt.6.1.1 macaddr.5.6.2 mdx.2.5.2 menhir.20260209 menhirCST.20260209 menhirGLR.20260209 menhirLib.20260209 menhirSdk.20260209 mingw-w64-shims.0.2.0 mtime.2.1.0 multicore-bench.0.1.7 multicore-magic.2.3.2 multicore-magic-dscheck.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-env-mingw64.1 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.4 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 oseq.0.5.1 ppx_derivers.1.2.1 ppx_sexp_conv.v0.17.1 ppxlib.0.38.0 ppxlib_jane.v0.17.4 psq.0.2.1 qcheck-core.0.91 qcheck-multicoretests-util.0.10 qcheck-stm.0.10 re.1.14.0 result.1.5 sedlex.3.7 seq.base sexplib0.v0.17.0 stdlib-shims.0.3.0 stringext.1.6.0 system-mingw.1 thread-local-storage.0.2 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uri.4.4.0 uri-sexp.4.4.0 uutf.1.0.4 yojson.3.0.0")C:/: (env CI true)C:/: (env OCAMLCI true)C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))(network host)(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y picos_std.dev picos_mux.dev picos_meta.dev picos_lwt.dev picos_io_cohttp.dev picos_io.dev picos_aux.dev picos.dev $DEPS"))<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[picos.dev] synchronised (file://C:/cygwin64/home/opam/src)[picos_aux.dev] synchronised (file://C:/cygwin64/home/opam/src)[picos_io.dev] synchronised (file://C:/cygwin64/home/opam/src)[picos_io_cohttp.dev] synchronised (file://C:/cygwin64/home/opam/src)[picos_lwt.dev] synchronised (file://C:/cygwin64/home/opam/src)[picos_meta.dev] synchronised (file://C:/cygwin64/home/opam/src)[picos_mux.dev] synchronised (file://C:/cygwin64/home/opam/src)[picos_std.dev] synchronised (file://C:/cygwin64/home/opam/src)[NOTE] Package system-mingw is already installed (current version is 1).[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).[NOTE] Package ocaml-env-mingw64 is already installed (current version is 1).[NOTE] Package ocaml-config is already installed (current version is 3).[NOTE] Package ocaml-compiler is already installed (current version is 5.4.1).[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.1).[NOTE] Package ocaml is already installed (current version is 5.4.1).[NOTE] Package mingw-w64-shims is already installed (current version is 0.2.0).[NOTE] Package host-system-mingw is already installed (current version is 1).[NOTE] Package host-arch-x86_64 is already installed (current version is 1).[NOTE] Package flexdll is already installed (current version is 0.44).[NOTE] Package conf-mingw-w64-gcc-x86_64 is already installed (current version is 1).[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-nnp is already installed (current version is base).[NOTE] Package base-effects is already installed (current version is base).[NOTE] Package base-domains is already installed (current version is base).[NOTE] Package base-bigarray is already installed (current version is base).[NOTE] Package arch-x86_64 is already installed (current version is 1).# To update the current shell environment, run: eval $(opam env)2026-03-31 18:08.49 ---> saved as "8c87227bc8e44a5d4d6e4b6239a812421d9aea30d8b8162884bff29f30bed701"C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))(network host)(shell "opam install $DEPS"))[NOTE] Package system-mingw is already installed (current version is 1).[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).[NOTE] Package ocaml-env-mingw64 is already installed (current version is 1).[NOTE] Package ocaml-config is already installed (current version is 3).[NOTE] Package ocaml-compiler is already installed (current version is 5.4.1).[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.1).[NOTE] Package ocaml is already installed (current version is 5.4.1).[NOTE] Package mingw-w64-shims is already installed (current version is 0.2.0).[NOTE] Package host-system-mingw is already installed (current version is 1).[NOTE] Package host-arch-x86_64 is already installed (current version is 1).[NOTE] Package flexdll is already installed (current version is 0.44).[NOTE] Package conf-mingw-w64-gcc-x86_64 is already installed (current version is 1).[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-nnp is already installed (current version is base).[NOTE] Package base-effects is already installed (current version is base).[NOTE] Package base-domains is already installed (current version is base).[NOTE] Package base-bigarray is already installed (current version is base).[NOTE] Package arch-x86_64 is already installed (current version is 1).2026-03-31 18:09.30: Cancelling: Timeout (60.0 minutes)Job cancelled2026-03-31 18:09.31: Timeout (60.0 minutes)