2026-01-17 01:30.58: New job: test ocsigen/lwt https://github.com/ocsigen/lwt.git#refs/heads/fix-datarace-1026 (141d187d1113a0348399c4ced37d9dcc82b7f11d) (linux-riscv64:debian-13-5.4_riscv64_opam-2.5)Base: ocaml/opam:debian-13-ocaml-5.4@sha256:6082f9b8a06961c7f76bc19fb1c8f26d2236d8d4d3fc8bee22908374b54b5fedOpam project buildTo reproduce locally:git clone --recursive "https://github.com/ocsigen/lwt.git" -b "fix-datarace-1026" && cd "lwt" && git reset --hard 141d187dcat > Dockerfile <<'END-OF-DOCKERFILE'FROM ocaml/opam:debian-13-ocaml-5.4@sha256:6082f9b8a06961c7f76bc19fb1c8f26d2236d8d4d3fc8bee22908374b54b5fed# debian-13-5.4_riscv64_opam-2.5USER 1000:1000ENV CLICOLOR_FORCE="1"ENV OPAMCOLOR="always"WORKDIR /srcRUN sudo ln -f /usr/bin/opam-2.5 /usr/bin/opamRUN opam init --reinit -niRUN uname -rs && opam exec -- ocaml -version && opam --versionWORKDIR /srcRUN sudo chown opam /srcRUN cd ~/opam-repository && (git cat-file -e 873cb18c37b308713d11ad3894c4bb78d73fb3e7 || git fetch origin master) && git reset -q --hard 873cb18c37b308713d11ad3894c4bb78d73fb3e7 && git log --no-decorate -n1 --oneline && opam update -uCOPY --chown=1000:1000 lwt_runtime_events.opam lwt_retry.opam lwt_react.opam lwt_ppx__ppx_let_tests.opam lwt_ppx.opam lwt_direct.opam lwt.opam ./RUN opam pin add -yn lwt_runtime_events.dev './' && \opam pin add -yn lwt_retry.dev './' && \opam pin add -yn lwt_react.dev './' && \opam pin add -yn lwt_ppx__ppx_let_tests.dev './' && \opam pin add -yn lwt_ppx.dev './' && \opam pin add -yn lwt_direct.dev './' && \opam pin add -yn lwt.dev './'RUN echo '(lang dune 3.0)' > './dune-project'ENV DEPS="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 cppo.1.8.0 csexp.1.5.2 dune.3.21.0 dune-configurator.3.21.0 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 ppx_derivers.1.2.1 ppx_here.v0.17.0 ppx_let.v0.17.1 ppxlib.0.37.0 react.1.2.2 sexplib0.v0.17.0 stdlib-shims.0.3.0 topkg.1.1.1"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.5 --depext-only -y lwt_runtime_events.dev lwt_retry.dev lwt_react.dev lwt_ppx__ppx_let_tests.dev lwt_ppx.dev lwt_direct.dev lwt.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . /srcRUN opam exec -- dune build @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-01-17 01:30.58: Using cache hint "ocsigen/lwt-ocaml/opam:debian-13-ocaml-5.4@sha256:6082f9b8a06961c7f76bc19fb1c8f26d2236d8d4d3fc8bee22908374b54b5fed-debian-13-5.4_riscv64_opam-2.5-75ab778214f47ae1c2af4a869bf7c608"2026-01-17 01:30.58: Using OBuilder spec:((from ocaml/opam:debian-13-ocaml-5.4@sha256:6082f9b8a06961c7f76bc19fb1c8f26d2236d8d4d3fc8bee22908374b54b5fed)(comment debian-13-5.4_riscv64_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 (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 "cd ~/opam-repository && (git cat-file -e 873cb18c37b308713d11ad3894c4bb78d73fb3e7 || git fetch origin master) && git reset -q --hard 873cb18c37b308713d11ad3894c4bb78d73fb3e7 && git log --no-decorate -n1 --oneline && opam update -u"))(copy (src lwt_runtime_events.opam lwt_retry.opam lwt_react.opam lwt_ppx__ppx_let_tests.opam lwt_ppx.opam lwt_direct.opam lwt.opam)(dst ./))(run (network host)(shell "opam pin add -yn lwt_runtime_events.dev './' && \\nopam pin add -yn lwt_retry.dev './' && \\nopam pin add -yn lwt_react.dev './' && \\nopam pin add -yn lwt_ppx__ppx_let_tests.dev './' && \\nopam pin add -yn lwt_ppx.dev './' && \\nopam pin add -yn lwt_direct.dev './' && \\nopam pin add -yn lwt.dev './'"))(run (network host)(shell "echo '(lang dune 3.0)' > './dune-project'"))(env DEPS "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 cppo.1.8.0 csexp.1.5.2 dune.3.21.0 dune-configurator.3.21.0 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 ppx_derivers.1.2.1 ppx_here.v0.17.0 ppx_let.v0.17.1 ppxlib.0.37.0 react.1.2.2 sexplib0.v0.17.0 stdlib-shims.0.3.0 topkg.1.1.1")(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 lwt_runtime_events.dev lwt_retry.dev lwt_react.dev lwt_ppx__ppx_let_tests.dev lwt_ppx.dev lwt_direct.dev lwt.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 @install @check @runtest && rm -rf _build")))2026-01-17 01:30.58: Waiting for resource in pool OCluster2026-01-18 15:42.42: Waiting for worker…2026-01-19 04:52.01: Got resource from pool OClusterBuilding on riscv-bm-01.sw.ci.devAll commits already cachedHEAD is now at 141d187d1 lwt_unix_stubs.c: fix races reported by TSan(from ocaml/opam:debian-13-ocaml-5.4@sha256:6082f9b8a06961c7f76bc19fb1c8f26d2236d8d4d3fc8bee22908374b54b5fed)2026-01-19 04:52.02 ---> using "14a3aafbd053f90f80456868928e361883d2c7f606038c39984bee02944df3c5" from cache/: (comment debian-13-5.4_riscv64_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"))2026-01-19 04:52.02 ---> using "1069d6d00ae181c67648d4359800b423774ffc2670961d6a9657135373dd2300" 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 2.0 to version 2.2, which can't be reverted.You may want to back it up before going further.Continue? [Y/n] yFormat upgrade done.<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>[default] Initialised2026-01-19 04:52.02 ---> using "4d1ec418290fd875e93a91b34e099cba10e49134936226ada46bab1c825bcce8" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 5.10.113-scw1The OCaml toplevel, version 5.4.02.5.02026-01-19 04:52.02 ---> using "241b65d4b95f11d4d2c19cb104bbad73e9444306dd2a7ff3e60fb4b19eabe6b1" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-01-19 04:52.02 ---> using "a44e6d4f266c7a67e8afe18f31e2098a8039a70ab804709f07c75e6ac33bcd3e" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 873cb18c37b308713d11ad3894c4bb78d73fb3e7 || git fetch origin master) && git reset -q --hard 873cb18c37b308713d11ad3894c4bb78d73fb3e7 && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEADa6b2f19780..882924392d master -> origin/master873cb18c37 Merge pull request #29216 from shonfeder/release-dune-3.21.0<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repositoryAlready up-to-date.Nothing to do.# To update the current shell environment, run: eval $(opam env)2026-01-19 04:52.02 ---> using "814301570a263910f70a56efc278bb25dd1612f2cf48655d7c81cb70ddce28a7" from cache/src: (copy (src lwt_runtime_events.opam lwt_retry.opam lwt_react.opam lwt_ppx__ppx_let_tests.opam lwt_ppx.opam lwt_direct.opam lwt.opam)(dst ./))2026-01-19 04:52.03 ---> saved as "3299ccec2e3e35a7f9b2463667e877c44294f85c5f2aed12011a2060f0df5b10"/src: (run (network host)(shell "opam pin add -yn lwt_runtime_events.dev './' && \\nopam pin add -yn lwt_retry.dev './' && \\nopam pin add -yn lwt_react.dev './' && \\nopam pin add -yn lwt_ppx__ppx_let_tests.dev './' && \\nopam pin add -yn lwt_ppx.dev './' && \\nopam pin add -yn lwt_direct.dev './' && \\nopam pin add -yn lwt.dev './'"))[lwt_runtime_events.dev] synchronised (file:///src)lwt_runtime_events is now pinned to file:///src (version dev)[lwt_retry.dev] synchronised (file:///src)lwt_retry is now pinned to file:///src (version dev)[lwt_react.dev] synchronised (file:///src)lwt_react is now pinned to file:///src (version dev)[NOTE] Package lwt_ppx__ppx_let_tests does not exist in opam repositories registered in the current switch.[lwt_ppx__ppx_let_tests.dev] synchronised (file:///src)[WARNING] Failed checks on lwt_ppx__ppx_let_tests package definition from source at file:///src:warning 62: License doesn't adhere to the SPDX standard, see https://spdx.org/licenses/ : "NOTFORRELEASE"lwt_ppx__ppx_let_tests is now pinned to file:///src (version dev)[lwt_ppx.dev] synchronised (file:///src)lwt_ppx is now pinned to file:///src (version dev)[lwt_direct.dev] synchronised (file:///src)lwt_direct is now pinned to file:///src (version dev)[lwt.dev] synchronised (file:///src)lwt is now pinned to file:///src (version dev)2026-01-19 04:52.48 ---> saved as "c87b5af8a963ecde97fc1266fc71b2440724a4a7ac779eab7a86a3ca7a7c6442"/src: (run (network host)(shell "echo '(lang dune 3.0)' > './dune-project'"))2026-01-19 04:52.49 ---> saved as "e662e9a5f6282a23b0340c5badf7ecc6a37e97b4ba3cb79bc91f720f063ce004"/src: (env DEPS "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 cppo.1.8.0 csexp.1.5.2 dune.3.21.0 dune-configurator.3.21.0 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 ppx_derivers.1.2.1 ppx_here.v0.17.0 ppx_let.v0.17.1 ppxlib.0.37.0 react.1.2.2 sexplib0.v0.17.0 stdlib-shims.0.3.0 topkg.1.1.1")/src: (env CI true)/src: (env OCAMLCI true)/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y lwt_runtime_events.dev lwt_retry.dev lwt_react.dev lwt_ppx__ppx_let_tests.dev lwt_ppx.dev lwt_direct.dev lwt.dev $DEPS"))+ /usr/bin/sudo "apt-get" "update"- Hit:1 http://deb.debian.org/debian trixie InRelease- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]- Get:4 http://deb.debian.org/debian-security trixie-security/main riscv64 Packages [88.5 kB]- Fetched 179 kB in 0s (389 kB/s)- Reading package lists...-<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[lwt.dev] synchronised (file:///src)[lwt_direct.dev] synchronised (file:///src)[lwt_ppx.dev] synchronised (file:///src)[lwt_ppx__ppx_let_tests.dev] synchronised (file:///src)[lwt_react.dev] synchronised (file:///src)[lwt_retry.dev] synchronised (file:///src)[lwt_runtime_events.dev] synchronised (file:///src)[NOTE] Package ocaml-options-vanilla 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 5.4.0).[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0).[NOTE] Package ocaml is already installed (current version is 5.4.0).[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).# To update the current shell environment, run: eval $(opam env)2026-01-19 04:53.35 ---> saved as "a7ac68783a23c69430ad8af021dc96063650ed08c6dc192ac8367f7667e6057f"/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(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 3).[NOTE] Package ocaml-compiler is already installed (current version is 5.4.0).[NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0).[NOTE] Package ocaml is already installed (current version is 5.4.0).[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).The following actions will be performed:=== install 19 packages- install base v0.17.3- install base-bytes base- install cppo 1.8.0- install csexp 1.5.2- install dune 3.21.0- install dune-configurator 3.21.0- install ocaml-compiler-libs v0.17.0- install ocaml_intrinsics_kernel v0.17.1- install ocamlbuild 0.16.1- install ocamlfind 1.9.8- install ocplib-endian 1.2- install ppx_derivers 1.2.1- install ppx_here v0.17.0- install ppx_let v0.17.1- install ppxlib 0.37.0- install react 1.2.2- install sexplib0 v0.17.0- install stdlib-shims 0.3.0- install topkg 1.1.1<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved base.v0.17.3 (cached)-> retrieved cppo.1.8.0 (cached)-> retrieved csexp.1.5.2 (cached)-> retrieved ocaml-compiler-libs.v0.17.0 (cached)-> retrieved ocaml_intrinsics_kernel.v0.17.1 (cached)-> retrieved ocamlbuild.0.16.1 (cached)-> retrieved ocamlfind.1.9.8 (cached)-> retrieved ocplib-endian.1.2 (cached)-> retrieved ppx_derivers.1.2.1 (cached)-> retrieved ppx_here.v0.17.0 (cached)-> retrieved ppx_let.v0.17.1 (cached)-> retrieved react.1.2.2 (cached)-> retrieved sexplib0.v0.17.0 (cached)-> retrieved stdlib-shims.0.3.0 (cached)-> retrieved topkg.1.1.1 (cached)-> retrieved ppxlib.0.37.0 (cached)-> retrieved dune.3.21.0, dune-configurator.3.21.0 (cached)-> installed ocamlbuild.0.16.1-> installed ocamlfind.1.9.8-> installed base-bytes.base-> installed topkg.1.1.1-> installed react.1.2.2-> installed dune.3.21.0-> installed csexp.1.5.2-> installed ocaml_intrinsics_kernel.v0.17.1-> installed cppo.1.8.0-> installed ppx_derivers.1.2.1-> installed ocaml-compiler-libs.v0.17.0-> installed ocplib-endian.1.2-> installed sexplib0.v0.17.0-> installed stdlib-shims.0.3.0-> installed dune-configurator.3.21.0-> installed base.v0.17.3-> installed ppxlib.0.37.0-> installed ppx_here.v0.17.0-> installed ppx_let.v0.17.1Done.# To update the current shell environment, run: eval $(opam env)2026-01-19 05:03.22 ---> saved as "7bae06e3b300e4daea6238a8f17816905d46da5946706b3ba5984d0a904d8d1f"/src: (copy (src .) (dst /src))2026-01-19 05:03.23 ---> saved as "5300d4ff0706e0b1dd4050508422b0d6d1a0a4ce21c9cc988482e5505ffd70ed"/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))(cd _build/default/test/retry && ./main.exe)Testing library 'retry'.................Ok. 14 tests ran, 0 tests skipped in 0.02 seconds(cd _build/default/test/direct && ./main.exe)Testing library 'lwt_direct'................Ok. 13 tests ran, 0 tests skipped in 0.02 seconds(cd _build/default/test/react && ./main.exe)Testing library 'react'..............Ok. 11 tests ran, 0 tests skipped in 4.52 seconds(cd _build/default/test/core && ./main.exe)Testing library 'core'..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................SSSSSSSSSSSSSSSSSSSSSSS..................................................................................................................................................Ok. 705 tests ran, 23 tests skipped in 3.18 seconds(cd _build/default/test/unix && ./main.exe)Testing library 'unix'....................................SSSSS..........................................................................................................................SSSS.......................................................................Ok. 226 tests ran, 9 tests skipped in 6.52 seconds(cd _build/default/test/ppx && ./main.exe)Testing library 'ppx'...................Ok. 16 tests ran, 0 tests skipped in 1.21 seconds2026-01-19 05:04.45 ---> saved as "8b30dc9ae987cf0645b4cc3ea7c09f5af16b344e9dd3a5d04054fdb0c2b34dd1"Job succeeded2026-01-19 05:04.45: Job succeeded