2026-05-05 14:40.50: New job: test backtracking/bitv https://github.com/backtracking/bitv.git#refs/pull/41/head (0e42d4c622b7b4cd629990a7dd6bceddcf46b19b) (linux-x86_64:ubuntu-22.04-5.4_opam-2.5)Base: ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7Opam project buildTo reproduce locally:git clone --recursive "https://github.com/backtracking/bitv.git" && cd "bitv" && git fetch origin "refs/pull/41/head" && git reset --hard 0e42d4c6cat > Dockerfile <<'END-OF-DOCKERFILE'FROM ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7# ubuntu-22.04-5.4_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 a70af20c7161f9d2e1ede477647f5f9e06d6e78f || git fetch origin master) && git reset -q --hard a70af20c7161f9d2e1ede477647f5f9e06d6e78f && git log --no-decorate -n1 --oneline && opam update -uCOPY --chown=1000:1000 bitv.opam ./RUN opam pin add -yn bitv.dev './'RUN echo '(lang dune 3.0)' > './dune-project'ENV DEPS="base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base dune.3.23.0 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.1"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.5 --depext-only -y bitv.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . /srcRUN opam exec -- dune build @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-05-05 14:40.50: Using cache hint "backtracking/bitv-ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7-ubuntu-22.04-5.4_opam-2.5-30931579a18167e7e10ec02cfb92df28"2026-05-05 14:40.50: Using OBuilder spec:((from ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7)(comment ubuntu-22.04-5.4_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 a70af20c7161f9d2e1ede477647f5f9e06d6e78f || git fetch origin master) && git reset -q --hard a70af20c7161f9d2e1ede477647f5f9e06d6e78f && git log --no-decorate -n1 --oneline && opam update -u"))(copy (src bitv.opam) (dst ./))(run (network host)(shell "opam pin add -yn bitv.dev './'"))(run (shell "echo '(lang dune 3.0)' > './dune-project'"))(env DEPS "base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base dune.3.23.0 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.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 bitv.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")))2026-05-05 14:40.50: Waiting for resource in pool OCluster2026-05-05 17:21.41: Waiting for worker…2026-05-05 17:27.03: Got resource from pool OClusterBuilding on clete.caelum.ci.devAll commits already cachedHEAD is now at 0e42d4c faster tanimoto implementation(from ocaml/opam:ubuntu-22.04-ocaml-5.4@sha256:820d5bdb3799f5da6694d98eaf83c30643622415a2382ee9f2be3676799737f7)2026-05-05 17:27.05 ---> using "d2564225bf1b0f86f879d98077c5aee1af360c988d8f5d2b60b97ba1f9e07761" from cache/: (comment ubuntu-22.04-5.4_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"))2026-05-05 17:27.05 ---> using "6173b475db7783a1c34961d8c0aaafb3b382c024f78aacc75dadbdbb936b85d4" from cache/src: (run (shell "opam init --reinit -ni"))Configuring from /home/opam/.opamrc and then from built-in defaults.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.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] yFormat upgrade done.<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>[default] Initialised2026-05-05 17:27.05 ---> using "66cb56b7a1bde2643b508320ad816b5e889a6c383d870e6c22e4b9a554e7404f" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-110-genericThe OCaml toplevel, version 5.4.12.5.02026-05-05 17:27.05 ---> using "e7e8c309fc8dc0f965860a37d87001b835a5e47de72f1345f21f0d262101c352" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-05-05 17:27.05 ---> using "6db34e0f0c6b7c2450cd6b22daeecef2536e20c11596e7f80d694dbb4746bbe7" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e a70af20c7161f9d2e1ede477647f5f9e06d6e78f || git fetch origin master) && git reset -q --hard a70af20c7161f9d2e1ede477647f5f9e06d6e78f && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEAD42844088d7..a70af20c71 master -> origin/mastera70af20c71 Merge pull request #29844 from shonfeder/release-dune-3.23.0<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repositorydefault (at git+file:///home/opam/opam-repository):[WARNING] opam is out-of-date. Please consider updating it (https://opam.ocaml.org/doc/Install.html)default (at git+file:///home/opam/opam-repository):[INFO] opam 2.5.1 includes security fixes; please consider upgrading (https://opam.ocaml.org/doc/Install.html)Everything 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)2026-05-05 17:27.05 ---> using "a975e23ed34c69130e3d0c548b376a49d0153ac83f0715ea635d50acae172112" from cache/src: (copy (src bitv.opam) (dst ./))2026-05-05 17:27.05 ---> saved as "b7705dd90199999bf285d09e090215a1bf7b252a618cc6fd439d3936d7b1b89a"/src: (run (network host)(shell "opam pin add -yn bitv.dev './'"))[bitv.dev] synchronised (file:///src)bitv is now pinned to file:///src (version dev)2026-05-05 17:27.08 ---> saved as "8fdfd153fdaf97ce1dde0b9533f3b800b496d78a5350d0f408906dd2e4becb24"/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-05-05 17:27.08 ---> saved as "e99671f38511fc8fde9bbf98f59485977d311603e1eac49ce2bd41eb1de52251"/src: (env DEPS "base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base dune.3.23.0 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.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 bitv.dev $DEPS"))+ /usr/bin/sudo "apt-get" "update"- Hit:1 http://archive.ubuntu.com/ubuntu jammy InRelease- Get:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [128 kB]- Get:3 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [127 kB]- Get:4 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 Packages [1601 kB]- Get:5 http://archive.ubuntu.com/ubuntu jammy-updates/restricted amd64 Packages [7245 kB]- Get:6 http://archive.ubuntu.com/ubuntu jammy-updates/multiverse amd64 Packages [86.0 kB]- Get:7 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages [4245 kB]- Get:8 http://archive.ubuntu.com/ubuntu jammy-backports/universe amd64 Packages [35.6 kB]- Get:9 http://archive.ubuntu.com/ubuntu jammy-backports/main amd64 Packages [82.8 kB]- Get:10 http://security.ubuntu.com/ubuntu jammy-security InRelease [129 kB]- Get:11 http://security.ubuntu.com/ubuntu jammy-security/restricted amd64 Packages [6995 kB]- Get:12 http://security.ubuntu.com/ubuntu jammy-security/multiverse amd64 Packages [61.6 kB]- Get:13 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages [3913 kB]- Get:14 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 Packages [1294 kB]- Fetched 25.9 MB in 7s (3667 kB/s)- Reading package lists...-<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[bitv.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 5.4.1).[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 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)2026-05-05 17:27.28 ---> saved as "b4eaa03930e9c56720c56038c7570413872109dc8f1c8c0363f3c03d2fab76e2"/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 5.4.1).[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 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 1 package- install dune 3.23.0<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved dune.3.23.0 (cached)-> installed dune.3.23.0Done.# To update the current shell environment, run: eval $(opam env)2026-05-05 17:28.30 ---> saved as "d4c7246d5fc22aba46c0099755694a540cc543fcdd6698b2e2f28d0e04e28f93"/src: (copy (src .) (dst /src))2026-05-05 17:28.31 ---> saved as "6db3329fa8a234f58d34f52518c95a4a198e06555fec3871e3ee789e8a9bc470"/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))File "dune", line 14, characters 7-11:14 | (name test)^^^^(cd _build/default && ./test.exe)Fatal error: exception File "test.ml", line 85, characters 2-8: Assertion failed"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 12026-05-05 17:28.32: Job failed: Failed: Build failed