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-13-4.14_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 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-threads.base base-unix.base dune.3.23.1 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-BLOCK2026-05-22 16:45.28: Using cache hint "backtracking/bitv-ocaml/opam:debian-13-ocaml-4.14@sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d3-debian-13-4.14_s390x_opam-2.5-eae4555874c5f41f1479b84289105c80"2026-05-22 16:45.28: 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 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-threads.base base-unix.base dune.3.23.1 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")))2026-05-22 16:45.28: Waiting for resource in pool OCluster2026-05-22 16:45.28: Waiting for worker…2026-05-22 21:02.48: 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@sha256:703dc67bd6718699a0ccf21b762f8bc6bae0342670a155236315a78a30c390d32026-05-22 21:02.48 ---> 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"))2026-05-22 21:02.48 ---> 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 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 21:02.48 ---> using "b83b8c4711316e1b7505f00b70ec678710db4d2e0680d7e58f6454917d6c1b47" 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 2.1 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 --globalContinue? [Y/n] yFormat upgrade done.<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repository2026-05-22 21:02.48 ---> using "878caa1c88bde4949e459f12a324e1326994219c40c1cb08859c8d107b744994" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-111-genericThe OCaml toplevel, version 4.14.32.5.12026-05-22 21:02.48 ---> using "b844f23ef3a8e16835a981ebd68ee0cc2c23857ee88682927f23740261c1c608" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-05-22 21:02.48 ---> using "c3cb5483e5f4e5c11474c4b74af9438d197111d339c292b68d84e6b0a9bb308e" 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)2026-05-22 21:02.48 ---> using "39bae8983adbfcf84a7fc849507763edbd83d8c6b4859fe778f304c0c403823d" from cache/src: (copy (src bitv.opam) (dst ./))2026-05-22 21:02.48 ---> using "87647d690d986e65524400864b7f8742494e328b9933e99c86185f9aa17e3b3d" 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 21:02.48 ---> using "6db2ad5b23a85fb6643f224cbb1ae5006e77b233281bb3ba6ca63569d3e3a47a" from cache/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-05-22 21:02.48 ---> using "f49fefa689a6b754865d2ccd9dd646d42b5d5d823766c6cbc98b0546c1e8f4bb" from cache/src: (env DEPS "base-bigarray.base base-threads.base base-unix.base dune.3.23.1 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"- 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 (7808 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)2026-05-22 21:02.48 ---> using "60fb340b0ded149613e97b2f50e1ac2fa5da4fb5de4ef9db8a01d8845639df54" 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 3.23.1<><> 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 21:02.48 ---> using "a6871b00542c0d0dea75f9861b57e5bec7a05909c86d17128a05327ce64a9905" from cache/src: (copy (src .) (dst /src))2026-05-22 21:02.50 ---> saved as "bd40e5f8a9d0d3bfd8cc50e5feeb44a6af9539a1cc959a2a5104042930ad3516"/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 12026-05-22 21:02.53: Job failed: Failed: Build failed