2026-05-13 10:16.55: New job: test backtracking/bitv https://github.com/backtracking/bitv.git#refs/pull/41/head (0e42d4c622b7b4cd629990a7dd6bceddcf46b19b) (linux-s390x:debian-13-4.14_s390x_opam-2.5)Base: ocaml/opam:debian-13-ocaml-4.14@sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d3Opam 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:debian-13-ocaml-4.14@sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d3# debian-13-4.14_s390x_opam-2.5USER 1000:1000ENV CLICOLOR_FORCE="1"ENV OPAMCOLOR="always"WORKDIR /srcRUN sudo ln -f /usr/bin/opam-2.5 /usr/bin/opamRUN cd ~/opam-repository && (git cat-file -e a70af20c7161f9d2e1ede477647f5f9e06d6e78f || git fetch origin master) && git reset -q --hard a70af20c7161f9d2e1ede477647f5f9e06d6e78f && git log --no-decorate -n1 --onelineRUN opam init --reinit -niRUN uname -rs && opam exec -- ocaml -version && opam --versionWORKDIR /srcRUN sudo chown opam /srcRUN 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-threads.base base-unix.base dune.3.23.0 ocaml.4.14.3 ocaml-base-compiler.4.14.3 ocaml-config.2 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-BLOCK2026-05-13 10:16.55: Using cache hint "backtracking/bitv-ocaml/opam:debian-13-ocaml-4.14@sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d3-debian-13-4.14_s390x_opam-2.5-c7e0c0d8ced9fa0838df644cf67adf76"2026-05-13 10:16.55: Using OBuilder spec:((from ocaml/opam:debian-13-ocaml-4.14@sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d3)(comment debian-13-4.14_s390x_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 (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"))(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 "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-threads.base base-unix.base dune.3.23.0 ocaml.4.14.3 ocaml-base-compiler.4.14.3 ocaml-config.2 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")))2026-05-13 10:16.55: Waiting for resource in pool OCluster2026-05-13 10:17.13: Waiting for worker…2026-05-13 16:01.49: Got resource from pool OClusterBuilding on s390x-worker-01.marist.ci.devAll commits already cachedHEAD is now at 0e42d4c faster tanimoto implementation(from ocaml/opam:debian-13-ocaml-4.14@sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d3)Unable to find image 'ocaml/opam:debian-13-ocaml-4.14@sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d3' locallydocker.io/ocaml/opam@sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d3: Pulling from ocaml/opamDigest: sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d3Status: Downloaded newer image for ocaml/opam@sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d32026-05-13 16:01.49 ---> using "c02b9bbf96fa6868c4a59523ee062e8e7d77177baa81d57d032be024544c19bf" from cache/: (comment debian-13-4.14_s390x_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"))2026-05-13 16:01.49 ---> using "d5e99b1f7156f9a588bb95b9e098c02df7f3e40ebec2d807061d5656a71b0a40" 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"))a70af20c71 Merge pull request #29844 from shonfeder/release-dune-3.23.02026-05-13 16:01.49 ---> using "a8cc769805bc1f9141dfe930308e968df8f420bd915a28b463446f2b8f051de4" from cache/src: (run (shell "opam init --reinit -ni"))This version of opam requires an update to the layout of /home/opam/.opam from version 2.1 to version 2.2, which can't be reverted.You may want to back it up before going further.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] y[NOTE] The 'jobs' option was reset, its value was 1 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:opam option jobs=1 --globalFormat upgrade done.<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repository2026-05-13 16:01.49 ---> using "86babebf61546fcd324a53e1f0ce3c974d96f222a5ba07f8bfe5e41e4c71c510" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-111-genericThe OCaml toplevel, version 4.14.32.5.12026-05-13 16:01.49 ---> using "2584eefeb64bbeba797a38c6c8b6518777d12921bcb1765288226246670963d6" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-05-13 16:01.49 ---> using "a7023abd2ba1002345d4a9620879d3d9dbdcb45bfb6358bf82666a072044e7a4" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "opam update -u"))<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] no changes from git+file:///home/opam/opam-repositoryEverything as up-to-date as possible (run with --verbose to show unavailable upgrades).The following packages are not being upgraded because the new versions conflict with other installed packages:- ocaml.5.5.0- ocaml-config.3However, 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)2026-05-13 16:01.49 ---> using "d7d1c829e9b89fed8d15aeb8fe071e6ef3ae1d2258ab5f7c7a948ff472e5d8d7" from cache/src: (copy (src bitv.opam) (dst ./))2026-05-13 16:01.49 ---> using "1ce44ddd504a36a183d8d4b9cf1c6bba8ab33642c4b6755bb19b45020717e821" from cache/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)2026-05-13 16:01.49 ---> using "cd93f138bafc209c2f123ae62859db87434f8088fe8861fa84ec99e7995ea15e" from cache/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-05-13 16:01.49 ---> using "748207945cf0badf2e27bdfc71ac4cf8c8a8a045e49ff5aa122591532cc7a9b9" from cache/src: (env DEPS "base-bigarray.base base-threads.base base-unix.base dune.3.23.0 ocaml.4.14.3 ocaml-base-compiler.4.14.3 ocaml-config.2 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://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 s390x Packages [150 kB]- Fetched 241 kB in 1s (241 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 2).[NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.3).[NOTE] Package ocaml is already installed (current version is 4.14.3).[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-bigarray is already installed (current version is base).# To update the current shell environment, run: eval $(opam env)2026-05-13 16:01.49 ---> using "74a0fbba259553c1a0fe29151175c17b828d0b0f3147bc6639d861758996a2b1" 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 2).[NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.3).[NOTE] Package ocaml is already installed (current version is 4.14.3).[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-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)2026-05-13 16:01.49 ---> using "07fad20fe7879199c49aa1b8cb5ea23a11f448f011a5b9e4c40b102b4c9dfb33" from cache/src: (copy (src .) (dst /src))2026-05-13 16:02.03 ---> saved as "73b5d276278d6b4c01f4b05fc70b0d9f9a11561db3c0804b4ab0ac965eaace8d"/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 Assert_failure("test.ml", 85, 2)"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 12026-05-13 16:02.16: Job failed: Failed: Build failed