2026-01-07 15:24.50: New job: test dra27/ocaml-uring https://github.com/dra27/ocaml-uring.git#refs/heads/less-user-magic (e3ff4750a6c7fba31781d969d375321c78bbe77b) (linux-x86_64:ubuntu-22.04-5.4_opam-2.4)Base: ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:8642c3c070583e67b39212354ae7394c38e0659f51bffa033b951a0b3ce9d96bOpam project buildTo reproduce locally:git clone --recursive "https://github.com/dra27/ocaml-uring.git" -b "less-user-magic" && cd "ocaml-uring" && git reset --hard e3ff4750cat > Dockerfile <<'END-OF-DOCKERFILE'FROM ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:8642c3c070583e67b39212354ae7394c38e0659f51bffa033b951a0b3ce9d96b# ubuntu-22.04-5.4_opam-2.4USER 1000:1000ENV CLICOLOR_FORCE="1"ENV OPAMCOLOR="always"WORKDIR /srcRUN sudo ln -f /usr/bin/opam-2.4 /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 2dee2fe30df966714e056f8af164fe0ed7648a63 || git fetch origin master) && git reset -q --hard 2dee2fe30df966714e056f8af164fe0ed7648a63 && git log --no-decorate -n1 --oneline && opam update -uCOPY --chown=1000:1000 uring.opam ./RUN opam pin add -yn uring.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-effects.base base-nnp.base base-threads.base base-unix.base bechamel.0.5.0 camlp-streams.5.0.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 dune.3.20.2 dune-configurator.3.20.2 fmt.0.11.0 logs.0.10.0 lwt.5.9.2 mdx.2.5.1 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.3 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 re.1.14.0 result.1.5 topkg.1.1.1"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.4 --depext-only -y uring.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . /srcRUN opam exec -- dune build @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-01-07 15:24.50: Using cache hint "dra27/ocaml-uring-ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:8642c3c070583e67b39212354ae7394c38e0659f51bffa033b951a0b3ce9d96b-ubuntu-22.04-5.4_opam-2.4-4d0933034e639e960f41c8fa69d4c9a6"2026-01-07 15:24.50: Using OBuilder spec:((from ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:8642c3c070583e67b39212354ae7394c38e0659f51bffa033b951a0b3ce9d96b)(comment ubuntu-22.04-5.4_opam-2.4)(user (uid 1000) (gid 1000))(env CLICOLOR_FORCE 1)(env OPAMCOLOR always)(workdir /src)(run (shell "sudo ln -f /usr/bin/opam-2.4 /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 2dee2fe30df966714e056f8af164fe0ed7648a63 || git fetch origin master) && git reset -q --hard 2dee2fe30df966714e056f8af164fe0ed7648a63 && git log --no-decorate -n1 --oneline && opam update -u"))(copy (src uring.opam) (dst ./))(run (network host)(shell "opam pin add -yn uring.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-effects.base base-nnp.base base-threads.base base-unix.base bechamel.0.5.0 camlp-streams.5.0.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 dune.3.20.2 dune-configurator.3.20.2 fmt.0.11.0 logs.0.10.0 lwt.5.9.2 mdx.2.5.1 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.3 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 re.1.14.0 result.1.5 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=2.4 --depext-only -y uring.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")))2026-01-07 15:24.50: Waiting for resource in pool OCluster2026-01-07 20:12.41: Waiting for worker…2026-01-07 20:13.39: Got resource from pool OClusterBuilding on eumacheAll commits already cachedHEAD is now at e3ff475 Move Unix-based processing properly into C(from ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:8642c3c070583e67b39212354ae7394c38e0659f51bffa033b951a0b3ce9d96b)2026-01-07 20:16.13 ---> using "7f91e2bb83d6d357ae6dfb3920265348795501d90daa6df00769b7d07a85dd88" from cache/: (comment ubuntu-22.04-5.4_opam-2.4)/: (user (uid 1000) (gid 1000))/: (env CLICOLOR_FORCE 1)/: (env OPAMCOLOR always)/: (workdir /src)/src: (run (shell "sudo ln -f /usr/bin/opam-2.4 /usr/bin/opam"))2026-01-07 20:16.13 ---> using "b10baba17702824ce3397886586a74a86b43df56e830340d91504f8930049b89" 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.Continue? [Y/n] yThis 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.Format upgrade done.<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>[default] Initialised2026-01-07 20:16.13 ---> using "38cd054f629c2ff65a759fcc3d2903d8d15e320c75afff53a053aa42a098b1c3" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 5.15.0-131-genericThe OCaml toplevel, version 5.4.02.4.12026-01-07 20:16.13 ---> using "699d03d14ea2f9b02d41e070a8808a882e511d19afee5b2765468c809dcb1a1a" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-01-07 20:16.13 ---> using "74cfbcc9a295d0845e9bd1e64f215006dd5eac3329883f731cc3cadb6f8b0a21" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 2dee2fe30df966714e056f8af164fe0ed7648a63 || git fetch origin master) && git reset -q --hard 2dee2fe30df966714e056f8af164fe0ed7648a63 && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEADee48e882f0..2dee2fe30d master -> origin/master2dee2fe30d Merge pull request #29195 from raphael-proust/lwt-fix-ocamlfind-dep-constraint<><> 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)2026-01-07 20:16.13 ---> using "a18de1a3457eb72bb77dbc2f7d0f950b3f2bf46e888c8d10ac0030dd6cebaed4" from cache/src: (copy (src uring.opam) (dst ./))2026-01-07 20:16.13 ---> using "51a9348809fd173a9228b636bab010bd1e9a28e7f9717ffd75be9fa80ea4e009" from cache/src: (run (network host)(shell "opam pin add -yn uring.dev './'"))[uring.dev] synchronised (file:///src)uring is now pinned to file:///src (version dev)2026-01-07 20:16.13 ---> using "695ca8c0039662e676160c765c12f61da8b2e15db12aa1c42cc0370e39b0c1e1" from cache/src: (run (network host)(shell "echo '(lang dune 3.0)' > './dune-project'"))2026-01-07 20:16.13 ---> using "7f3f7355473858e80395d0529a0e8452e5fd4854d956e30dca2887764031835f" from cache/src: (env DEPS "astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bechamel.0.5.0 camlp-streams.5.0.1 cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 dune.3.20.2 dune-configurator.3.20.2 fmt.0.11.0 logs.0.10.0 lwt.5.9.2 mdx.2.5.1 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-version.4.0.3 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 re.1.14.0 result.1.5 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=2.4 --depext-only -y uring.dev $DEPS"))+ /usr/bin/sudo "apt-get" "update"- Get:1 http://security.ubuntu.com/ubuntu jammy-security InRelease [129 kB]- Hit:2 http://archive.ubuntu.com/ubuntu jammy InRelease- Get:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [128 kB]- Get:4 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [3634 kB]- Get:5 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [127 kB]- Get:6 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1287 kB]- Get:7 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1599 kB]- Get:8 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages [6205 kB]- Get:9 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [6411 kB]- Get:10 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [3966 kB]- Get:11 http://archive.ubuntu.com/ubuntu jammy-updates/multiverse amd64 Packages [69.2 kB]- Get:12 http://archive.ubuntu.com/ubuntu jammy-backports/main amd64 Packages [83.9 kB]- Get:13 http://archive.ubuntu.com/ubuntu jammy-backports/universe amd64 Packages [37.2 kB]- Fetched 23.7 MB in 4s (5485 kB/s)- Reading package lists...-<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[uring.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).2026-01-07 20:16.13 ---> using "3a81384e878e0637928e8a74ba2963e0bfcd026b358a2afaef373415ad577261" from cache/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 22 packages- install astring 0.8.5- install base-bytes base- install bechamel 0.5.0- install camlp-streams 5.0.1- install cmdliner 2.1.0- install cppo 1.8.0- install csexp 1.5.2- install cstruct 6.2.0- install dune 3.20.2- install dune-configurator 3.20.2- install fmt 0.11.0- install logs 0.10.0- install lwt 5.9.2- install mdx 2.5.1- install ocaml-version 4.0.3- install ocamlbuild 0.16.1- install ocamlfind 1.9.8- install ocplib-endian 1.2- install optint 0.3.0- install re 1.14.0- install result 1.5- install topkg 1.1.1<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved astring.0.8.5 (cached)-> retrieved bechamel.0.5.0 (cached)-> retrieved camlp-streams.5.0.1 (cached)-> retrieved cppo.1.8.0 (cached)-> retrieved cmdliner.2.1.0 (cached)-> retrieved csexp.1.5.2 (cached)-> retrieved cstruct.6.2.0 (cached)-> retrieved fmt.0.11.0 (cached)-> retrieved logs.0.10.0 (cached)-> retrieved lwt.5.9.2 (cached)-> retrieved ocaml-version.4.0.3 (cached)-> retrieved mdx.2.5.1 (cached)-> retrieved ocamlbuild.0.16.1 (cached)-> retrieved ocamlfind.1.9.8 (cached)-> retrieved ocplib-endian.1.2 (cached)-> retrieved optint.0.3.0 (cached)-> retrieved re.1.14.0 (cached)-> retrieved result.1.5 (cached)-> retrieved topkg.1.1.1 (cached)-> retrieved dune.3.20.2, dune-configurator.3.20.2 (cached)-> installed cmdliner.2.1.0-> installed ocamlbuild.0.16.1-> installed ocamlfind.1.9.8-> installed base-bytes.base-> installed topkg.1.1.1-> installed fmt.0.11.0-> installed astring.0.8.5-> installed dune.3.20.2-> installed csexp.1.5.2-> installed bechamel.0.5.0-> installed camlp-streams.5.0.1-> installed cstruct.6.2.0-> installed cppo.1.8.0-> installed ocaml-version.4.0.3-> installed optint.0.3.0-> installed result.1.5-> installed re.1.14.0-> installed ocplib-endian.1.2-> installed dune-configurator.3.20.2-> installed lwt.5.9.2-> installed logs.0.10.0-> installed mdx.2.5.1Done.# To update the current shell environment, run: eval $(opam env)2026-01-07 20:16.13 ---> using "1ff0e6168650d0fd5fb6be081ae6a84b78f427a8f262b012b240b3de682c92ae" from cache/src: (copy (src .) (dst /src))2026-01-07 20:16.13 ---> saved as "91d6a8b5e3f73c2a9c270938a19cc0fe74717edb35b83298f97bdc4602344c4f"/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))(cd _build/default/vendor/liburing && ./configure)prefix /usrincludedir /usr/includelibdir /usr/liblibdevdir /usr/librelativelibdirmandir /usr/mandatadir /usr/sharelibgcc_link_flag /usr/lib/gcc/x86_64-linux-gnu/11/libgcc.astringop_overflow yesarray_bounds yes__kernel_rwf_t yes__kernel_timespec yesopen_how yesstatx yesglibc_statx yesC++ yeshas_ucontext yesNVMe uring command support nofutex waitv support nohas_idtype_t yesnolibc yeshas_fanotify yesCC gccCXX g++(cd _build/default/vendor/liburing && /usr/bin/make -j -C src)make: Entering directory '/src/_build/default/vendor/liburing/src'CC setup.olCC queue.olCC register.olCC syscall.olCC version.olCC nolibc.olCC ffi.olCC setup.osCC queue.osCC register.osCC syscall.osCC version.osCC nolibc.osCC ffi.osAR liburing.aRANLIB liburing.aCC liburing.so.2.7AR liburing-ffi.aRANLIB liburing-ffi.aCC liburing-ffi.so.2.7make: Leaving directory '/src/_build/default/vendor/liburing/src'ar: creating liburing.aar: creating liburing-ffi.a(cd _build/default/tests && ./poll_add.exe)submitted 1poll_add: 12026-01-07 20:16.30 ---> saved as "15d889e803803eac6662b3891c46c00227b0e4a4ac44b3b44ce6df99fdfb08cb"Job succeeded2026-01-07 20:16.30: Job succeeded