2026-05-22 16:45.28: New job: test backtracking/bitv https://github.com/backtracking/bitv.git#refs/pull/41/head (0e42d4c622b7b4cd629990a7dd6bceddcf46b19b) (linux-s390x:debian-13-5.4_s390x_opam-2.5)Base: ocaml/opam:debian-13-ocaml-5.4@sha256:34b047b52894d41ab9cec70a806ab0b4122365099f190ddfdca0a185f18fdfbbOpam 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-5.4@sha256:34b047b52894d41ab9cec70a806ab0b4122365099f190ddfdca0a185f18fdfbb# debian-13-5.4_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 c180e1630960e0dbb8e30c22b3de89113eb5cc93 || git fetch origin master) && git reset -q --hard c180e1630960e0dbb8e30c22b3de89113eb5cc93 && 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-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base dune.3.23.1 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-BLOCK2026-05-22 16:45.28: Using cache hint "backtracking/bitv-ocaml/opam:debian-13-ocaml-5.4@sha256:34b047b52894d41ab9cec70a806ab0b4122365099f190ddfdca0a185f18fdfbb-debian-13-5.4_s390x_opam-2.5-556af805940e71c17533c0e4ff9d1ab3"2026-05-22 16:45.28: Using OBuilder spec:((from ocaml/opam:debian-13-ocaml-5.4@sha256:34b047b52894d41ab9cec70a806ab0b4122365099f190ddfdca0a185f18fdfbb)(comment debian-13-5.4_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 c180e1630960e0dbb8e30c22b3de89113eb5cc93 || git fetch origin master) && git reset -q --hard c180e1630960e0dbb8e30c22b3de89113eb5cc93 && 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-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base dune.3.23.1 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")))2026-05-22 16:45.28: Waiting for resource in pool OCluster2026-05-22 16:45.28: Waiting for worker…2026-05-22 21:02.47: 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-5.4@sha256:34b047b52894d41ab9cec70a806ab0b4122365099f190ddfdca0a185f18fdfbb)Unable to find image 'ocaml/opam:debian-13-ocaml-5.4@sha256:34b047b52894d41ab9cec70a806ab0b4122365099f190ddfdca0a185f18fdfbb' locallydocker.io/ocaml/opam@sha256:34b047b52894d41ab9cec70a806ab0b4122365099f190ddfdca0a185f18fdfbb: Pulling from ocaml/opamDigest: sha256:34b047b52894d41ab9cec70a806ab0b4122365099f190ddfdca0a185f18fdfbbStatus: Downloaded newer image for ocaml/opam@sha256:34b047b52894d41ab9cec70a806ab0b4122365099f190ddfdca0a185f18fdfbb2026-05-22 21:02.47 ---> using "57d2e9451a73ca71418d8865f91314fd310fbd9f220056a3c6e330c6a7437b30" from cache/: (comment debian-13-5.4_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"))2026-05-22 21:02.47 ---> using "8666ff4e6d3bf873f894700fb428b56d30b1e306ad5cede7c4c0deb39987a5b8" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e c180e1630960e0dbb8e30c22b3de89113eb5cc93 || git fetch origin master) && git reset -q --hard c180e1630960e0dbb8e30c22b3de89113eb5cc93 && git log --no-decorate -n1 --oneline"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEADfc08333d1b..3e30e43808 master -> origin/masterc180e16309 Merge pull request #29907 from dra27/host-arch-fixes2026-05-22 21:02.47 ---> using "d02bf92d8cab54e50e8dc5a638d77f2f70d8d53db257d12901648667ef18a044" 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 2.1 to version 2.2, which can't be reverted.You may want to back it up before going further.[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-repository2026-05-22 21:02.47 ---> using "e771624ec2fcff415e5b44e420a3dbe49d2ea2549262e284aca3a8a4b8e2a893" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-111-genericThe OCaml toplevel, version 5.4.12.5.12026-05-22 21:02.47 ---> using "bea28b7863fb6f894e6e1d149efd35ff30efb1a502138be40cb54ba862ff16f3" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-05-22 21:02.47 ---> using "80509d757dab30906564c604a677218064544f752bc0e9db4534d799aaa5c677" 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 possibleThe following packages are not being upgraded because the new versions conflict with other installed packages:- ocaml.5.5.0However, 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)2026-05-22 21:02.47 ---> using "4fbe0c424b70640b8ab918d4637a62bb6a028b6429b263fa124720d3f5deaf04" from cache/src: (copy (src bitv.opam) (dst ./))2026-05-22 21:02.47 ---> using "f93aca590445da2c2e3228871b16be3ef3890293075de936eaa22963fb81b711" 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)2026-05-22 21:02.47 ---> using "3a9382b214a1b47ee2ab8c8102ed9346d29020ff4320dbf30543001d242c0a45" from cache/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-05-22 21:02.47 ---> using "11a93d689995c5ff7d5c4c70c7a648ace7c170bfeb3f6460e9dab0778b77e534" from cache/src: (env DEPS "base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base dune.3.23.1 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://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 s390x Packages [9324 kB]- Get:5 http://deb.debian.org/debian-security trixie-security/main s390x Packages [155 kB]- Fetched 9711 kB in 1s (6771 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)2026-05-22 21:02.47 ---> using "967d8eb4b7f462286275140b5642fc0768d1e4d87a5e55dc4204fc1d56923769" 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 5.4.1).[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 3.23.1<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved dune.3.23.1 (cached)-> installed dune.3.23.1Done.# To update the current shell environment, run: eval $(opam env)2026-05-22 21:02.47 ---> using "e250fe18a27f5a97a24960313958b0f8dd470e23612ffa63713f3969b3242eab" from cache/src: (copy (src .) (dst /src))2026-05-22 21:02.49 ---> saved as "384a065a49ac714e4847fe043e1872955bdf30d82f61961c04d8f42f258517d6"/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 12026-05-22 21:02.53: Job failed: Failed: Build failed