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:debian-13-5.4+flambda_opam-2.5)Base: ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742aOpam 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-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a# debian-13-5.4+flambda_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-compiler.5.4.1 ocaml-config.3 ocaml-variants.5.4.1+options"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:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a-debian-13-5.4+flambda_opam-2.5-ec1e7dd17a2415dd59ffdcd693e4e311"2026-05-05 14:40.50: Using OBuilder spec:((from ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a)(comment debian-13-5.4+flambda_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-compiler.5.4.1 ocaml-config.3 ocaml-variants.5.4.1+options")(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 17:21.47: Waiting for worker…2026-05-05 17:27.04: Got resource from pool OClusterBuilding on phoebe.caelum.ci.devAll commits already cachedHEAD is now at 0e42d4c faster tanimoto implementation(from ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a)Unable to find image 'ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a' locallydocker.io/ocaml/opam@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a: Pulling from ocaml/opama7730063fcfe: Already exists1a27fd2181de: Already existsc29591c91388: Already exists356a64daa753: Already existsac02f8f2062b: Already existsaaa2f390e4c8: Already existsb668811757f6: Already exists32fd4e1a774f: Already existsb1d486fb8fdf: Already existscf8a2024f299: Already exists8c4a5dac67c3: Already exists6adfe24d7b40: Already existsdccd6e3c0589: Already exists2ee4bcb55cd4: Already exists2dc3b58478d7: Already existsdaf15e5c44c6: Already exists564e978a8088: Already exists564e978a8088: Already exists25a652a8c456: Already existsb3bfea7bff3f: Already existsa00f2937f570: Already exists78bd1737ebff: Already exists4f4fb700ef54: Already exists4291a055edd7: Already exists3c2b2836d59a: Already exists7b3e96544a52: Already existsc72503effb14: Already existsbca08df11a10: Already exists2ab0829b2daf: Already exists1d246d4da211: Already existsa09cb4870027: Already exists2ce07b4fe7c0: Already exists6b96f28d505e: Already existsb6ad36bba9bf: Already exists56d62791a0f9: Already exists4d60780055d1: Already exists43f57a7c44cb: Already existsf21057dc4e85: Already existse0d2ca1300ed: Already exists9da2f7598f8e: Already existscb569bb28593: Already existsc3a3b1a3b983: Pulling fs layer155716f9becc: Pulling fs layer5097248324b7: Pulling fs layer95e3c9f2018e: Pulling fs layercb55ec3146d6: Pulling fs layer08745066407b: Pulling fs layeree80eb6180cf: Pulling fs layer95e3c9f2018e: Waitingcb55ec3146d6: Waiting08745066407b: Waitingee80eb6180cf: Waiting155716f9becc: Verifying Checksum155716f9becc: Download complete5097248324b7: Verifying Checksum5097248324b7: Download completec3a3b1a3b983: Download completec3a3b1a3b983: Pull complete155716f9becc: Pull complete5097248324b7: Pull completecb55ec3146d6: Verifying Checksumcb55ec3146d6: Download complete08745066407b: Verifying Checksum08745066407b: Download completeee80eb6180cf: Verifying Checksumee80eb6180cf: Download complete95e3c9f2018e: Verifying Checksum95e3c9f2018e: Download complete95e3c9f2018e: Pull completecb55ec3146d6: Pull complete08745066407b: Pull completeee80eb6180cf: Pull completeDigest: sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742aStatus: Downloaded newer image for ocaml/opam@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a2026-05-05 17:27.16 ---> using "b3b8f63b0dd4bfe7cbdf034c73eae4bc32b27d6c0fed74c34aad48145296ea60" from cache/: (comment debian-13-5.4+flambda_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 17:27.16 ---> using "d6c60ed53902af98e35d69df1009efa3a6995cf6d10dc29620cd4453bb41c09a" 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 17:27.17 ---> using "b8851c62a9895f1dbcefd2a76081e79a64c48f1bf068e14bc7360cf0d294e0ee" 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 17:27.17 ---> using "8626fe3b9ddfcd4bf561373e1b3056d0046d0d2b4fde6488e638c1d7a26c3551" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-05-05 17:27.18 ---> using "1180efb32860fd26307010c0e347229d3d16ed89f0d6484774fa9210e83de384" 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 17:27.18 ---> using "8e91eae4a3d5a5fc09b14088823b5b4ad8325c0447fe89d07152f2d8e27be5cc" from cache/src: (copy (src bitv.opam) (dst ./))2026-05-05 17:27.23 ---> saved as "c5bb8ff9b362a0c1b1488bbbccb43031b76cd2470353952ef40f11308b5dc7aa"/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 17:27.27 ---> saved as "8d5327c5d1ccca2a243a67a53a0d8f036ad88fa3a7ce9d4b36736921d83d43e0"/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-05-05 17:27.32 ---> saved as "878914a9c547f893d171446f82ad16e34b7eca8d69ad9621b1cbf16483231780"/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-compiler.5.4.1 ocaml-config.3 ocaml-variants.5.4.1+options")/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 amd64 Packages [130 kB]- Fetched 221 kB in 0s (1924 kB/s)- Reading package lists...<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[bitv.dev] synchronised (file:///src)[NOTE] Package ocaml-variants is already installed (current version is 5.4.1+options).[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 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 17:27.48 ---> saved as "1a9c502ca48043d08afaad9d46385351957af67f2dc2c8822326aa1fd96ee4ba"/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "opam install $DEPS"))[NOTE] Package ocaml-variants is already installed (current version is 5.4.1+options).[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 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 17:28.51 ---> saved as "68a89e481dfda7cac99ff38fcf7c6f21d8f51ca3bcb5e630c3e77f3a951e3432"/src: (copy (src .) (dst /src))2026-05-05 17:28.54 ---> saved as "a598103782d08a564839989fda7b022857da861265568ea4e3f76de4d0da4345"/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 17:28.56: Job failed: Failed: Build failed