2026-06-25 14:39.17: New job: test backtracking/bitv https://github.com/backtracking/bitv.git#refs/pull/41/head (0e42d4c622b7b4cd629990a7dd6bceddcf46b19b) (linux-x86_64:ubuntu-25.04-5.5_opam-2.5) Base: ocaml/opam:ubuntu-25.04-ocaml-5.5@sha256:0125753c4a6b74a6affb5097456fbd742e4b8494845887381b1c7791060b5226 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:ubuntu-25.04-ocaml-5.5@sha256:0125753c4a6b74a6affb5097456fbd742e4b8494845887381b1c7791060b5226 # ubuntu-25.04-5.5_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 cd ~/opam-repository && (git cat-file -e 2569983dbf3e7bba6895aaa326c068232317845d || git fetch origin master) && git reset -q --hard 2569983dbf3e7bba6895aaa326c068232317845d && git log --no-decorate -n1 --oneline RUN opam init --reinit -ni RUN uname -rs && opam exec -- ocaml -version && opam --version WORKDIR /src RUN sudo chown opam /src RUN 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 compiler-cloning.enabled dune.3.23.1 ocaml.5.5.0 ocaml-base-compiler.5.5.0 ocaml-compiler.5.5.0 ocaml-options-vanilla.1" 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 2026-06-25 14:39.17: Using cache hint "backtracking/bitv-ocaml/opam:ubuntu-25.04-ocaml-5.5@sha256:0125753c4a6b74a6affb5097456fbd742e4b8494845887381b1c7791060b5226-ubuntu-25.04-5.5_opam-2.5-7471f6bd78b2a920f648c9bc2e6ad35a" 2026-06-25 14:39.17: Using OBuilder spec: ((from ocaml/opam:ubuntu-25.04-ocaml-5.5@sha256:0125753c4a6b74a6affb5097456fbd742e4b8494845887381b1c7791060b5226) (comment ubuntu-25.04-5.5_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 2569983dbf3e7bba6895aaa326c068232317845d || git fetch origin master) && git reset -q --hard 2569983dbf3e7bba6895aaa326c068232317845d && 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 compiler-cloning.enabled dune.3.23.1 ocaml.5.5.0 ocaml-base-compiler.5.5.0 ocaml-compiler.5.5.0 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")) ) 2026-06-25 14:39.17: Waiting for resource in pool OCluster 2026-06-25 15:11.10: Waiting for worker… 2026-06-25 15:15.55: Got resource from pool OCluster Building on bremusa.ocamllabs.io All commits already cached HEAD is now at 0e42d4c faster tanimoto implementation (from ocaml/opam:ubuntu-25.04-ocaml-5.5@sha256:0125753c4a6b74a6affb5097456fbd742e4b8494845887381b1c7791060b5226) Unable to find image 'ocaml/opam:ubuntu-25.04-ocaml-5.5@sha256:0125753c4a6b74a6affb5097456fbd742e4b8494845887381b1c7791060b5226' locally docker.io/ocaml/opam@sha256:0125753c4a6b74a6affb5097456fbd742e4b8494845887381b1c7791060b5226: Pulling from ocaml/opam c62190a9ab61: Already exists 788eac603774: Already exists d8838e8760f7: Already exists 044df817fdc9: Already exists 679d83783049: Already exists 69f94498388b: Already exists 3085e8aba705: Already exists a0a4f3094d9c: Already exists 6fb066609bd0: Already exists 708e838a777f: Already exists f34688a32906: Already exists 46da1cacb563: Already exists 45efe9200020: Already exists 5b99139b364f: Already exists 4ad48f1dba7c: Already exists c925d71eaef6: Already exists c925d71eaef6: Already exists b2ad08e9de6b: Already exists 83c2841cf9f5: Already exists 44173c57952f: Already exists d79d03e7cdd0: Already exists 4f4fb700ef54: Already exists f3c441c54279: Already exists ed883348341c: Already exists b291b02a5330: Already exists 1511b666e5bc: Already exists dfb1789db5aa: Already exists 816b597ba46a: Already exists 076e5216fa61: Already exists 7244f8145d6e: Already exists b20b8e4b141e: Already exists a06501a832ff: Already exists a2ae49da3e1c: Already exists 526fd91a9227: Already exists 9a80c0ecdf11: Already exists 0c8157bed317: Already exists 1a1c034aab17: Already exists e52c710f93d5: Already exists 4f4fb700ef54: Already exists a4296119a3b7: Already exists 9185ab7b79b7: Pulling fs layer bf4590c0a8e8: Pulling fs layer af67198b7db5: Pulling fs layer 9196245c6a3d: Pulling fs layer 337a7d4f05ad: Pulling fs layer abe485c5d1f9: Pulling fs layer 9196245c6a3d: Waiting 48a7a7b953fa: Pulling fs layer 337a7d4f05ad: Waiting abe485c5d1f9: Waiting 48a7a7b953fa: Waiting bf4590c0a8e8: Verifying Checksum bf4590c0a8e8: Download complete af67198b7db5: Verifying Checksum af67198b7db5: Download complete 9185ab7b79b7: Download complete 9185ab7b79b7: Pull complete bf4590c0a8e8: Pull complete af67198b7db5: Pull complete 337a7d4f05ad: Verifying Checksum 337a7d4f05ad: Download complete abe485c5d1f9: Download complete 48a7a7b953fa: Verifying Checksum 48a7a7b953fa: Download complete 9196245c6a3d: Verifying Checksum 9196245c6a3d: Download complete 9196245c6a3d: Pull complete 337a7d4f05ad: Pull complete abe485c5d1f9: Pull complete 48a7a7b953fa: Pull complete Digest: sha256:0125753c4a6b74a6affb5097456fbd742e4b8494845887381b1c7791060b5226 Status: Downloaded newer image for ocaml/opam@sha256:0125753c4a6b74a6affb5097456fbd742e4b8494845887381b1c7791060b5226 2026-06-25 15:15.55 ---> using "dae608bd2fc2d5dea9b7a44329e6ee38f69b4a715a2d97f1247251ece8c4043b" from cache /: (comment ubuntu-25.04-5.5_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")) 2026-06-25 15:15.55 ---> using "0c1701a7e64905ae6af6d9eeb52b97439303b37ae71f2089e20f6a709259cc27" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e 2569983dbf3e7bba6895aaa326c068232317845d || git fetch origin master) && git reset -q --hard 2569983dbf3e7bba6895aaa326c068232317845d && git log --no-decorate -n1 --oneline")) From https://github.com/ocaml/opam-repository * branch master -> FETCH_HEAD b85f65c75d..ceed23f9d3 master -> origin/master 2569983dbf Merge pull request #30085 from Octachron/OCaml_5.5.0_fix_relocatable_build 2026-06-25 15:15.55 ---> using "588d66f2188f4a3fae6f0a1d0663c52daa1942a02f565e0f8d4b0652dddd6fab" 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. 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 --global Format upgrade done. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository 2026-06-25 15:15.55 ---> using "11f9fa32caddda32b65bdb0b93748b68ff825975e3f5e574c815d1a6fe721320" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 7.0.0-22-generic The OCaml toplevel, version 5.5.0 2.5.1 2026-06-25 15:15.55 ---> using "d3f455ab486d814da4f45992da74caa1156784e100f76455d0472e44a087794e" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-06-25 15:15.55 ---> using "486bf71dde5cae102fa094460076299951e850152116c3132f577d8fbf602f11" 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-repository The following actions will be performed: === recompile 7 packages - recompile base-domains base [uses ocaml] - recompile base-effects base [uses ocaml] - recompile base-nnp base [uses base-domains] - recompile ocaml 5.5.0 [uses ocaml-base-compiler] - recompile ocaml-base-compiler 5.5.0 (pinned) [uses ocaml-compiler] - recompile ocaml-compiler 5.5.0 [upstream or system changes] - recompile opam-depext 1.2.3 [uses ocaml] === install 1 package - install compiler-cloning enabled [required by ocaml-compiler] <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved ocaml.5.5.0 (cached) -> removed base-effects.base -> removed base-nnp.base -> removed base-domains.base -> installed compiler-cloning.enabled -> retrieved ocaml-compiler.5.5.0 (cached) -> retrieved opam-depext.1.2.3 (cached) -> removed opam-depext.1.2.3 -> removed ocaml.5.5.0 -> removed ocaml-base-compiler.5.5.0 -> removed ocaml-compiler.5.5.0 -> installed ocaml-compiler.5.5.0 -> installed ocaml-base-compiler.5.5.0 -> installed ocaml.5.5.0 -> installed base-domains.base -> installed base-effects.base -> installed base-nnp.base -> installed opam-depext.1.2.3 Done. <><> opam-depext.1.2.3 installed successfully <><><><><><><><><><><><><><><><><> => opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead <><> ocaml-compiler.5.5.0 installed successfully ><><><><><><><><><><><><><><><> => This switch had to be compiled from sources, but future switches with the 🐌 same compiler version and configuration should assemble instantly. # To update the current shell environment, run: eval $(opam env) 2026-06-25 15:15.55 ---> using "3ce9b075e492cbc038534bc82e818a57a6cc4c6a7584b4bd3daf712f7213b01b" from cache /src: (copy (src bitv.opam) (dst ./)) 2026-06-25 15:15.55 ---> using "d1b52c532daf57c67b6fa782980f96b87c37151aab8da3250aded070c37e58ec" 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) 2026-06-25 15:15.55 ---> using "880c7be3d00df455596b84fa988513d398f8f74fc6cea10d44213571a800307f" from cache /src: (run (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-06-25 15:15.55 ---> using "b17c7342b354095efc6d4d688df419431d9224519b16cd3a983b75dc5209c8c9" from cache /src: (env DEPS "base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base compiler-cloning.enabled dune.3.23.1 ocaml.5.5.0 ocaml-base-compiler.5.5.0 ocaml-compiler.5.5.0 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://archive.ubuntu.com/ubuntu plucky InRelease - Hit:2 http://security.ubuntu.com/ubuntu plucky-security InRelease - Hit:3 http://archive.ubuntu.com/ubuntu plucky-updates InRelease - Hit:4 http://archive.ubuntu.com/ubuntu plucky-backports InRelease - 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-compiler is already installed (current version is 5.5.0). [NOTE] Package ocaml-base-compiler is already installed (current version is 5.5.0). [NOTE] Package ocaml is already installed (current version is 5.5.0). [NOTE] Package compiler-cloning is already installed (current version is enabled). [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) 2026-06-25 15:15.55 ---> using "d95f5e49e01cec1ead07b91fa6a23cfe8cf41ddaaf801fb7a918c63c683183ce" 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-compiler is already installed (current version is 5.5.0). [NOTE] Package ocaml-base-compiler is already installed (current version is 5.5.0). [NOTE] Package ocaml is already installed (current version is 5.5.0). [NOTE] Package compiler-cloning is already installed (current version is enabled). [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.3.23.1 Done. # To update the current shell environment, run: eval $(opam env) 2026-06-25 15:15.55 ---> using "5384494caee6aec5aa22e2ecfdcc86d5906d4f942b690ad1d37ec4a4427ef708" from cache /src: (copy (src .) (dst /src)) 2026-06-25 15:15.56 ---> saved as "2c9c291e77574db0cf88ddf055a365db6bb19736fd6a5c5191edae6e5a0c69a8" /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 2026-06-25 15:15.57: Job failed: Failed: Build failed