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-26.04-5.5_opam-2.5) Base: ocaml/opam:ubuntu-26.04-ocaml-5.5@sha256:92b192ec4933c318aeb38ded7d8e08d62077ef9eba2d941400f7c13c0c59053a 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-26.04-ocaml-5.5@sha256:92b192ec4933c318aeb38ded7d8e08d62077ef9eba2d941400f7c13c0c59053a # ubuntu-26.04-5.5_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-26.04-ocaml-5.5@sha256:92b192ec4933c318aeb38ded7d8e08d62077ef9eba2d941400f7c13c0c59053a-ubuntu-26.04-5.5_opam-2.5-7471f6bd78b2a920f648c9bc2e6ad35a" 2026-06-25 14:39.17: Using OBuilder spec: ((from ocaml/opam:ubuntu-26.04-ocaml-5.5@sha256:92b192ec4933c318aeb38ded7d8e08d62077ef9eba2d941400f7c13c0c59053a) (comment ubuntu-26.04-5.5_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 15:15.31: Got resource from pool OCluster Building on odawa.caelum.ci.dev All commits already cached HEAD is now at 0e42d4c faster tanimoto implementation (from ocaml/opam:ubuntu-26.04-ocaml-5.5@sha256:92b192ec4933c318aeb38ded7d8e08d62077ef9eba2d941400f7c13c0c59053a) Unable to find image 'ocaml/opam:ubuntu-26.04-ocaml-5.5@sha256:92b192ec4933c318aeb38ded7d8e08d62077ef9eba2d941400f7c13c0c59053a' locally docker.io/ocaml/opam@sha256:92b192ec4933c318aeb38ded7d8e08d62077ef9eba2d941400f7c13c0c59053a: Pulling from ocaml/opam 81e2f2053c8f: Already exists d1f56e4c7f2f: Already exists 282509c34d7f: Already exists ce63e4a28b1f: Already exists 136942ba042f: Already exists 94399a9a0f52: Already exists f9b48df52c25: Already exists 39656ff64d99: Already exists e97072a30bd9: Already exists 6effe1cfbd12: Already exists c19808e5b86a: Already exists b82037575329: Already exists 8c2e22546b8a: Already exists bac337ce9750: Already exists 2e0aaacb64c5: Already exists 871cfae2286f: Already exists 14ddbd61ee22: Already exists 10bb981238c8: Already exists 10bb981238c8: Already exists 44e23de7792e: Already exists 8c40a7b57a1c: Already exists 2d14f876777b: Already exists e961482c5df3: Already exists 4f4fb700ef54: Already exists d76cc0c2cb5e: Already exists 9604e924c748: Already exists cb00225ff30d: Already exists 3d43358473d9: Already exists d7fa3a83b5f5: Already exists 50df2d9378e6: Already exists a46be5cbc100: Already exists 9b073973cefe: Already exists 0385b2629f1d: Already exists edd8da0e4030: Already exists 6a8847baf81b: Already exists 46b228ec6281: Already exists cb274edb6a87: Already exists a8ac79cc3ca7: Already exists bf788870e28b: Already exists 9680cfe74017: Already exists 4f4fb700ef54: Already exists 46c86403b374: Already exists 4f4fb700ef54: Pulling fs layer 4f4fb700ef54: Waiting 40592aa60fa4: Pulling fs layer 40592aa60fa4: Waiting d99eeff4c95f: Pulling fs layer 9e932e5d805e: Pulling fs layer d99eeff4c95f: Waiting 0da6c0e459da: Pulling fs layer c685e2a4c04c: Pulling fs layer 0da6c0e459da: Waiting 9e932e5d805e: Waiting c685e2a4c04c: Waiting 4f4fb700ef54: Download complete 4f4fb700ef54: Pull complete 40592aa60fa4: Download complete 40592aa60fa4: Pull complete 9e932e5d805e: Download complete 0da6c0e459da: Verifying Checksum 0da6c0e459da: Download complete c685e2a4c04c: Download complete d99eeff4c95f: Verifying Checksum d99eeff4c95f: Download complete d99eeff4c95f: Pull complete 9e932e5d805e: Pull complete 0da6c0e459da: Pull complete c685e2a4c04c: Pull complete Digest: sha256:92b192ec4933c318aeb38ded7d8e08d62077ef9eba2d941400f7c13c0c59053a Status: Downloaded newer image for ocaml/opam@sha256:92b192ec4933c318aeb38ded7d8e08d62077ef9eba2d941400f7c13c0c59053a 2026-06-25 15:15.31 ---> using "b01ac08d9ec526f4000e955ff9d533642877783a58a159720d90d66d2ebde320" from cache /: (comment ubuntu-26.04-5.5_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 15:15.31 ---> using "9dd286db5831ebbbded994eac86aa29a608951cf79d06a40eb3ae3dcf2c2428d" 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 15:15.31 ---> using "5d62afc48d08b2ed6c2791915d4de6ceea48aa33ebb09b6deb555ec6c60ddd75" 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 15:15.31 ---> using "9b6c726f8d0ffd6e2300e8f2b604a20d057d8d0c9a5a14f4a88723f8a8995a22" 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 15:15.31 ---> using "388516677fb902f528908fcafaeba0f7e33a0c849016d694ed4ad6197c21e10a" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-06-25 15:15.31 ---> using "028a01c429c31196641f961e1d15a58d70fc7b77d31b204c72e2a167d1533b60" 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 15:15.31 ---> using "ed8bcd610831db970fb28c9488d7b3d2d168be5c44fb6127b17ae7c2653c68a1" from cache /src: (copy (src bitv.opam) (dst ./)) 2026-06-25 15:15.31 ---> using "b7f0b120d60fbcdb61142acc02b62d70c2259a2168364c05ca1cad9775ab6760" 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 15:15.31 ---> using "f9def39df4effd1f039bf7e2d11e5fb7b607655b6d563ead70514ad73ddf4c9d" from cache /src: (run (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-06-25 15:15.31 ---> using "d9e6d437c4eb205201f3f34e9bb064d87fa282a4c1d20a23a91c89588878bc45" 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 resolute InRelease - Get:2 http://security.ubuntu.com/ubuntu resolute-security InRelease [137 kB] - Get:3 http://security.ubuntu.com/ubuntu resolute-security/restricted amd64 Packages [258 kB] - Get:4 http://archive.ubuntu.com/ubuntu resolute-updates InRelease [137 kB] - Get:5 http://security.ubuntu.com/ubuntu resolute-security/universe amd64 Packages [154 kB] - Get:6 http://security.ubuntu.com/ubuntu resolute-security/main amd64 Packages [286 kB] - Hit:7 http://archive.ubuntu.com/ubuntu resolute-backports InRelease - Get:8 http://archive.ubuntu.com/ubuntu resolute-updates/main amd64 Packages [330 kB] - Get:9 http://archive.ubuntu.com/ubuntu resolute-updates/universe amd64 Packages [195 kB] - Fetched 1497 kB in 0s (3594 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-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 15:15.31 ---> using "f1169d9502b040f01d86c83ba7c59a9e8e9676582e408ee9d16fa40dc34bb9a2" 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 15:15.31 ---> using "0f25bc90591a2b040ace4e4caae7ea4b8bb1d9a3a1faad55d00b9cedc2e77d34" from cache /src: (copy (src .) (dst /src)) 2026-06-25 15:15.32 ---> saved as "cbd4ef8048db743940c58e15c22e084968c29287cb4f6f4d1bb47b847e8e78ec" /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 15:15.33: Job failed: Failed: Build failed