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:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a Opam project build To reproduce locally: git clone --recursive "https://github.com/backtracking/bitv.git" && cd "bitv" && git fetch origin "refs/pull/41/head" && git reset --hard 0e42d4c6 cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:debian-13-ocaml-5.4-flambda@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a # debian-13-5.4+flambda_opam-2.5 USER 1000:1000 ENV CLICOLOR_FORCE="1" ENV OPAMCOLOR="always" WORKDIR /src RUN sudo ln -f /usr/bin/opam-2.5 /usr/bin/opam RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version WORKDIR /src RUN sudo chown opam /src RUN 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 --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 $DEPS RUN opam install $DEPS COPY --chown=1000:1000 . /src RUN opam exec -- dune build @install @check @runtest && rm -rf _build END-OF-DOCKERFILE docker build . END-REPRO-BLOCK 2026-05-05 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 OCluster 2026-05-05 17:21.47: Waiting for worker… 2026-05-05 17:27.04: Got resource from pool OCluster Building on phoebe.caelum.ci.dev All commits already cached HEAD 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' locally docker.io/ocaml/opam@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a: Pulling from ocaml/opam a7730063fcfe: Already exists 1a27fd2181de: Already exists c29591c91388: Already exists 356a64daa753: Already exists ac02f8f2062b: Already exists aaa2f390e4c8: Already exists b668811757f6: Already exists 32fd4e1a774f: Already exists b1d486fb8fdf: Already exists cf8a2024f299: Already exists 8c4a5dac67c3: Already exists 6adfe24d7b40: Already exists dccd6e3c0589: Already exists 2ee4bcb55cd4: Already exists 2dc3b58478d7: Already exists daf15e5c44c6: Already exists 564e978a8088: Already exists 564e978a8088: Already exists 25a652a8c456: Already exists b3bfea7bff3f: Already exists a00f2937f570: Already exists 78bd1737ebff: Already exists 4f4fb700ef54: Already exists 4291a055edd7: Already exists 3c2b2836d59a: Already exists 7b3e96544a52: Already exists c72503effb14: Already exists bca08df11a10: Already exists 2ab0829b2daf: Already exists 1d246d4da211: Already exists a09cb4870027: Already exists 2ce07b4fe7c0: Already exists 6b96f28d505e: Already exists b6ad36bba9bf: Already exists 56d62791a0f9: Already exists 4d60780055d1: Already exists 43f57a7c44cb: Already exists f21057dc4e85: Already exists e0d2ca1300ed: Already exists 9da2f7598f8e: Already exists cb569bb28593: Already exists c3a3b1a3b983: Pulling fs layer 155716f9becc: Pulling fs layer 5097248324b7: Pulling fs layer 95e3c9f2018e: Pulling fs layer cb55ec3146d6: Pulling fs layer 08745066407b: Pulling fs layer ee80eb6180cf: Pulling fs layer 95e3c9f2018e: Waiting cb55ec3146d6: Waiting 08745066407b: Waiting ee80eb6180cf: Waiting 155716f9becc: Verifying Checksum 155716f9becc: Download complete 5097248324b7: Verifying Checksum 5097248324b7: Download complete c3a3b1a3b983: Download complete c3a3b1a3b983: Pull complete 155716f9becc: Pull complete 5097248324b7: Pull complete cb55ec3146d6: Verifying Checksum cb55ec3146d6: Download complete 08745066407b: Verifying Checksum 08745066407b: Download complete ee80eb6180cf: Verifying Checksum ee80eb6180cf: Download complete 95e3c9f2018e: Verifying Checksum 95e3c9f2018e: Download complete 95e3c9f2018e: Pull complete cb55ec3146d6: Pull complete 08745066407b: Pull complete ee80eb6180cf: Pull complete Digest: sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a Status: Downloaded newer image for ocaml/opam@sha256:eb5ed8d5d9e07fac2b9956de5da07948168d714f829b64b17f5a186a39c9742a 2026-05-05 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] y Format upgrade done. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] Initialised 2026-05-05 17:27.17 ---> using "b8851c62a9895f1dbcefd2a76081e79a64c48f1bf068e14bc7360cf0d294e0ee" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-110-generic The OCaml toplevel, version 5.4.1 2.5.0 2026-05-05 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_HEAD 42844088d7..a70af20c71 master -> origin/master a70af20c71 Merge pull request #29844 from shonfeder/release-dune-3.23.0 <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository default (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 possible However, 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.3.23.0 Done. # 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 1 2026-05-05 17:28.56: Job failed: Failed: Build failed