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-26.04-5.4_opam-2.5)Base: ocaml/opam:ubuntu-26.04-ocaml-5.4@sha256:23f9b6595fd2952b198a6391d29b6f92c0edcf528ec4c73ef7766b7810f23b93Opam 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-26.04-ocaml-5.4@sha256:23f9b6595fd2952b198a6391d29b6f92c0edcf528ec4c73ef7766b7810f23b93# ubuntu-26.04-5.4_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-26.04-ocaml-5.4@sha256:23f9b6595fd2952b198a6391d29b6f92c0edcf528ec4c73ef7766b7810f23b93-ubuntu-26.04-5.4_opam-2.5-30931579a18167e7e10ec02cfb92df28"2026-05-05 14:40.50: Using OBuilder spec:((from ocaml/opam:ubuntu-26.04-ocaml-5.4@sha256:23f9b6595fd2952b198a6391d29b6f92c0edcf528ec4c73ef7766b7810f23b93)(comment ubuntu-26.04-5.4_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 17:21.40: Waiting for worker…2026-05-05 17:27.02: Got resource from pool OClusterBuilding on clete.caelum.ci.devhint: Using 'master' as the name for the initial branch. This default branch namehint: is subject to change. To configure the initial branch name to use in allhint: of your new repositories, which will suppress this warning, call:hint:hint: git config --global init.defaultBranch <name>hint:hint: Names commonly chosen instead of 'master' are 'main', 'trunk' andhint: 'development'. The just-created branch can be renamed via this command:hint:hint: git branch -m <name>Initialized empty Git repository in /var/cache/obuilder/ocluster/git/bitv.git-7f0b62793a025827c544d43688f29a76e7c7a897/.git/HEAD is now at 0e42d4c faster tanimoto implementation(from ocaml/opam:ubuntu-26.04-ocaml-5.4@sha256:23f9b6595fd2952b198a6391d29b6f92c0edcf528ec4c73ef7766b7810f23b93)2026-05-05 17:27.03 ---> using "adfe62a45dcf1f3d9a164e7f0368fcd193a49fd597399c1056161905cce9782f" from cache/: (comment ubuntu-26.04-5.4_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 17:27.03 ---> using "b9838b293e5f89d62a9632e502da1025454ab6b34001005252ead3cf4dde9f8d" 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] Initialised2026-05-05 17:27.03 ---> using "fc799b5b75670c49b5dcd664b948892af46813078beb8491ffa32208b628d37b" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-110-genericThe OCaml toplevel, version 5.4.12.5.12026-05-05 17:27.03 ---> using "4c43701be6bba98acfc33570ce6b1e0d025c02dabce58a2d606d8dadaee56a1a" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-05-05 17:27.03 ---> using "964d8523f4b7cfafa163e75bd9a7a84f3117f3f0b733287929a5d7b9e61d5bb1" 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_HEAD045748b2d8..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-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)2026-05-05 17:27.03 ---> using "78e70b842493c409e393ac096ffdb5cf4487ab1672247a4042c2507feaae1bfe" from cache/src: (copy (src bitv.opam) (dst ./))2026-05-05 17:27.04 ---> saved as "73802fd9348e9712d868b3ca9a7bd0f45cf42a6e97977a9c3b17b3edefa729c5"/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 17:27.06 ---> saved as "86e4e7278db1a562178a44d90e32fbe30f0c5d4faef3c82a0a4036ff3f5d1f87"/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-05-05 17:27.06 ---> saved as "95dc63bee8a01cc75a8a06d4162ca8244c03bf2cd20d9fb89db00da386b3144e"/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"- Get:1 http://security.ubuntu.com/ubuntu resolute-security InRelease [136 kB]- Hit:2 http://archive.ubuntu.com/ubuntu resolute InRelease- Get:3 http://security.ubuntu.com/ubuntu resolute-security/universe amd64 Packages [33.5 kB]- Get:4 http://archive.ubuntu.com/ubuntu resolute-updates InRelease [136 kB]- Get:5 http://security.ubuntu.com/ubuntu resolute-security/main amd64 Packages [21.4 kB]- Hit:6 http://archive.ubuntu.com/ubuntu resolute-backports InRelease- Get:7 http://archive.ubuntu.com/ubuntu resolute-updates/universe amd64 Packages [33.5 kB]- Get:8 http://archive.ubuntu.com/ubuntu resolute-updates/restricted amd64 Packages [34.7 kB]- Get:9 http://archive.ubuntu.com/ubuntu resolute-updates/main amd64 Packages [64.6 kB]- Fetched 459 kB in 0s (1165 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 17:27.18 ---> saved as "4b0e098c4bac3afc88b74c2ad77340c6e5b480ea89f19a6cea2ad0d43d53d3b9"/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 17:28.18 ---> saved as "cd8c1df564744653734f17d20b7979542a8a13d140d409f99d7d39c37ed03473"/src: (copy (src .) (dst /src))2026-05-05 17:28.18 ---> saved as "ee647ff5f71040235233fac1953d800620daa9ba8ce97e3b6827953e8d3de529"/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 17:28.19: Job failed: Failed: Build failed