2026-01-15 10:53.39: New job: test ocsigen/lwt https://github.com/ocsigen/lwt.git#refs/heads/fix-datarace-1026 (141d187d1113a0348399c4ced37d9dcc82b7f11d) (linux-x86_64:(lint-opam)) Base: ocaml/opam:debian-13-ocaml-5.0@sha256:54bbee126005951f0e70bdd55d24e44b560f630da6768ac62f8e636774aab0e4 Opam files lint To reproduce locally: git clone --recursive "https://github.com/ocsigen/lwt.git" -b "fix-datarace-1026" && cd "lwt" && git reset --hard 141d187d cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:debian-13-ocaml-5.0@sha256:54bbee126005951f0e70bdd55d24e44b560f630da6768ac62f8e636774aab0e4 # debian-13-5.0_opam-2.5 USER 1000:1000 ENV CLICOLOR_FORCE="1" ENV OPAMCOLOR="always" WORKDIR /src RUN sudo ln -f /usr/bin/opam-2.2 /usr/bin/opam RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version WORKDIR /src RUN sudo chown opam /src RUN cd ~/opam-repository && (git cat-file -e 72769ff0c0f8274d25ea0253d2ed7e1fb7422d90 || git fetch origin master) && git reset -q --hard 72769ff0c0f8274d25ea0253d2ed7e1fb7422d90 && git log --no-decorate -n1 --oneline && opam update -u COPY --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="astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-nnp.base base-threads.base base-unix.base bos.0.2.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 dune.3.20.2 dune-configurator.3.20.2 dyn.3.20.2 fmt.0.11.0 fpath.0.7.3 jsonm.1.0.2 logs.0.10.0 menhir.20250912 menhirCST.20250912 menhirLib.20250912 menhirSdk.20250912 num.1.6 ocaml.5.0.0 ocaml-base-compiler.5.0.0 ocaml-compiler-libs.v0.12.4 ocaml-config.3 ocaml-options-vanilla.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocamlgraph.2.2.0 ocplib-endian.1.2 opam-core.2.5.0 opam-dune-lint.0.6 opam-file-format.2.2.0 opam-format.2.5.0 opam-repository.2.5.0 opam-state.2.5.0 ordering.3.20.2 parsexp.v0.16.0 patch.3.1.0 pp.2.0.0 ppx_derivers.1.2.1 ppxlib.0.37.0 re.1.14.0 react.1.2.2 rresult.0.7.0 sexplib.v0.16.0 sexplib0.v0.16.0 sha.1.15.4 spdx_licenses.1.4.0 stdlib-shims.0.3.0 stdune.3.20.2 swhid_core.0.1 topkg.1.1.1 uutf.1.0.4" ENV CI="true" ENV OCAMLCI="true" RUN opam update --depexts && opam install --cli=2.2 --depext-only -y deps_for_opam_dune_lint.opam lwt_retry.dev lwt_react.dev lwt_ppx.dev lwt_direct.dev lwt.dev $DEPS RUN opam install $DEPS ENV CI="true" ENV OCAMLCI="true" WORKDIR /src COPY --chown=1000:1000 . /src/ RUN opam lint RUN opam exec -- opam-dune-lint END-OF-DOCKERFILE docker build . END-REPRO-BLOCK 2026-01-15 10:53.39: Using cache hint "ocsigen/lwt-ocaml/opam:debian-13-ocaml-5.0@sha256:54bbee126005951f0e70bdd55d24e44b560f630da6768ac62f8e636774aab0e4-debian-13-5.0_opam-2.5-f7a5cc784692041e75ad737fd99bf277" 2026-01-15 10:53.39: Using OBuilder spec: ((from ocaml/opam:debian-13-ocaml-5.0@sha256:54bbee126005951f0e70bdd55d24e44b560f630da6768ac62f8e636774aab0e4) (comment debian-13-5.0_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-2.2 /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 72769ff0c0f8274d25ea0253d2ed7e1fb7422d90 || git fetch origin master) && git reset -q --hard 72769ff0c0f8274d25ea0253d2ed7e1fb7422d90 && 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 "astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-nnp.base base-threads.base base-unix.base bos.0.2.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 dune.3.20.2 dune-configurator.3.20.2 dyn.3.20.2 fmt.0.11.0 fpath.0.7.3 jsonm.1.0.2 logs.0.10.0 menhir.20250912 menhirCST.20250912 menhirLib.20250912 menhirSdk.20250912 num.1.6 ocaml.5.0.0 ocaml-base-compiler.5.0.0 ocaml-compiler-libs.v0.12.4 ocaml-config.3 ocaml-options-vanilla.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocamlgraph.2.2.0 ocplib-endian.1.2 opam-core.2.5.0 opam-dune-lint.0.6 opam-file-format.2.2.0 opam-format.2.5.0 opam-repository.2.5.0 opam-state.2.5.0 ordering.3.20.2 parsexp.v0.16.0 patch.3.1.0 pp.2.0.0 ppx_derivers.1.2.1 ppxlib.0.37.0 re.1.14.0 react.1.2.2 rresult.0.7.0 sexplib.v0.16.0 sexplib0.v0.16.0 sha.1.15.4 spdx_licenses.1.4.0 stdlib-shims.0.3.0 stdune.3.20.2 swhid_core.0.1 topkg.1.1.1 uutf.1.0.4") (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=2.2 --depext-only -y deps_for_opam_dune_lint.opam lwt_retry.dev lwt_react.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")) (env CI true) (env OCAMLCI true) (workdir /src) (copy (src .) (dst /src/)) (run (shell "opam lint")) (run (shell "opam exec -- opam-dune-lint")) ) 2026-01-15 10:53.39: Waiting for resource in pool OCluster 2026-01-15 10:53.39: Waiting for worker… 2026-01-15 10:53.39: Got resource from pool OCluster Building on clete All commits already cached HEAD is now at 141d187d1 lwt_unix_stubs.c: fix races reported by TSan (from ocaml/opam:debian-13-ocaml-5.0@sha256:54bbee126005951f0e70bdd55d24e44b560f630da6768ac62f8e636774aab0e4) 2026-01-15 10:53.40 ---> using "ddd37be92c9b56d281c587e661e20a8ee6777ba8c8eb0346c4be459788d39d65" from cache /: (comment debian-13-5.0_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-2.2 /usr/bin/opam")) 2026-01-15 10:53.40 ---> using "ce94428e08c5bf6fa636390a84eeb22c08f66fce4c6a348a291af3110ca94c26" 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 development 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] y Format upgrade done. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] Initialised 2026-01-15 10:53.40 ---> using "da3daa385cf5707dd24713fa357fee227c40c769c72428185bfd16ec5c618387" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-90-generic The OCaml toplevel, version 5.0.0 2.2.1 2026-01-15 10:53.40 ---> using "133950cef9234dfb9a409dd0933b4f31c23e39f9c040f0d36e9fa3afd485f521" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-01-15 10:53.40 ---> using "01c6489ff4d274dfe3f632c74296964779e114cf47f3966fe01c02b3e8d5aa0e" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e 72769ff0c0f8274d25ea0253d2ed7e1fb7422d90 || git fetch origin master) && git reset -q --hard 72769ff0c0f8274d25ea0253d2ed7e1fb7422d90 && git log --no-decorate -n1 --oneline && opam update -u")) From https://github.com/ocaml/opam-repository * branch master -> FETCH_HEAD 16d9c0eb87..72769ff0c0 master -> origin/master 72769ff0c0 Merge pull request #29213 from shonfeder/opam-dune-lint-add-dune-upper-bound <><> 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). However, you may "opam upgrade" these packages explicitly, which will ask permission to downgrade or uninstall the conflicting packages. Nothing to do. # Run eval $(opam env) to update the current shell environment 2026-01-15 10:53.40 ---> using "6ac3e7b394fb939b31e9a2d7076398126178ef9efe14ba95bc517ccf05731929" 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 ./)) 2026-01-15 10:53.40 ---> using "f56830164eadd5af0b5400331b42c4e607a52853ee777599125f27cd66e7bb45" from cache /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) Package lwt_ppx__ppx_let_tests does not exist, create as a NEW package? [y/n] y [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) 2026-01-15 10:53.40 ---> using "71b8fcd9c2ef93d370f7f73a462edb702fda248b6312019438d831229c5cc295" from cache /src: (run (network host) (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-01-15 10:53.40 ---> using "6187bea528eea90ee9087e32dcaadb1d7fb618cd0208fe48dea2965b3a536e7a" from cache /src: (env DEPS "astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-nnp.base base-threads.base base-unix.base bos.0.2.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 dune.3.20.2 dune-configurator.3.20.2 dyn.3.20.2 fmt.0.11.0 fpath.0.7.3 jsonm.1.0.2 logs.0.10.0 menhir.20250912 menhirCST.20250912 menhirLib.20250912 menhirSdk.20250912 num.1.6 ocaml.5.0.0 ocaml-base-compiler.5.0.0 ocaml-compiler-libs.v0.12.4 ocaml-config.3 ocaml-options-vanilla.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocamlgraph.2.2.0 ocplib-endian.1.2 opam-core.2.5.0 opam-dune-lint.0.6 opam-file-format.2.2.0 opam-format.2.5.0 opam-repository.2.5.0 opam-state.2.5.0 ordering.3.20.2 parsexp.v0.16.0 patch.3.1.0 pp.2.0.0 ppx_derivers.1.2.1 ppxlib.0.37.0 re.1.14.0 react.1.2.2 rresult.0.7.0 sexplib.v0.16.0 sexplib0.v0.16.0 sha.1.15.4 spdx_licenses.1.4.0 stdlib-shims.0.3.0 stdune.3.20.2 swhid_core.0.1 topkg.1.1.1 uutf.1.0.4") /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=2.2 --depext-only -y deps_for_opam_dune_lint.opam lwt_retry.dev lwt_react.dev lwt_ppx.dev lwt_direct.dev lwt.dev $DEPS")) + /usr/bin/sudo "apt-get" "update" - Get:1 http://deb.debian.org/debian trixie InRelease [140 kB] - 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 trixie/main amd64 Packages [9670 kB] - Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [95.9 kB] - Fetched 9997 kB in 1s (7766 kB/s) - Reading package lists... - [ERROR] No package named deps_for_opam_dune_lint found. "/usr/bin/env" "bash" "-c" "opam update --depexts && opam install --cli=2.2 --depext-only -y deps_for_opam_dune_lint.opam lwt_retry.dev lwt_react.dev lwt_ppx.dev lwt_direct.dev lwt.dev $DEPS" failed with exit status 5 2026-01-15 10:53.43: Job failed: Failed: Build failed