2025-10-18 16:34.19: New job: test ocaml-multicore/effects-examples https://github.com/ocaml-multicore/effects-examples.git#refs/heads/master (8a7e80dd29e68e2d05fe4b0399c8535a51f36395) (linux-x86_64:ubuntu-25.10-5.4_opam-2.4) Base: ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:1193b97b1fb681f2d335587f7d0f746174fef9b1dfb77984932b8f3ea440c840 Opam project build To reproduce locally: git clone --recursive "https://github.com/ocaml-multicore/effects-examples.git" -b "master" && cd "effects-examples" && git reset --hard 8a7e80dd cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:1193b97b1fb681f2d335587f7d0f746174fef9b1dfb77984932b8f3ea440c840 # ubuntu-25.10-5.4_opam-2.4 USER 1000:1000 ENV CLICOLOR_FORCE="1" ENV OPAMCOLOR="always" WORKDIR /src RUN sudo ln -f /usr/bin/opam-2.4 /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 c603e596bfaf195a5c1a3baf992b11c1de5ad35b || git fetch origin master) && git reset -q --hard c603e596bfaf195a5c1a3baf992b11c1de5ad35b && git log --no-decorate -n1 --oneline && opam update -u COPY --chown=1000:1000 effects-examples.opam ./ RUN opam pin add -yn effects-examples.dev './' RUN echo '(lang dune 3.0)' > './dune-project' ENV DEPS="base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cppo.1.8.0 csexp.1.5.2 dune.3.20.2 dune-configurator.3.20.2 lwt.5.9.2 multicont.1.0.3 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocamlfind.1.9.8 ocplib-endian.1.2" ENV CI="true" ENV OCAMLCI="true" RUN opam update --depexts && opam install --cli=2.4 --depext-only -y effects-examples.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 2025-10-18 16:34.19: Using cache hint "ocaml-multicore/effects-examples-ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:1193b97b1fb681f2d335587f7d0f746174fef9b1dfb77984932b8f3ea440c840-ubuntu-25.10-5.4_opam-2.4-74ae7d01de7b7360dd71029cc08f30b7" 2025-10-18 16:34.19: Using OBuilder spec: ((from ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:1193b97b1fb681f2d335587f7d0f746174fef9b1dfb77984932b8f3ea440c840) (comment ubuntu-25.10-5.4_opam-2.4) (user (uid 1000) (gid 1000)) (env CLICOLOR_FORCE 1) (env OPAMCOLOR always) (workdir /src) (run (shell "sudo ln -f /usr/bin/opam-2.4 /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 c603e596bfaf195a5c1a3baf992b11c1de5ad35b || git fetch origin master) && git reset -q --hard c603e596bfaf195a5c1a3baf992b11c1de5ad35b && git log --no-decorate -n1 --oneline && opam update -u")) (copy (src effects-examples.opam) (dst ./)) (run (network host) (shell "opam pin add -yn effects-examples.dev './'")) (run (network host) (shell "echo '(lang dune 3.0)' > './dune-project'")) (env DEPS "base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cppo.1.8.0 csexp.1.5.2 dune.3.20.2 dune-configurator.3.20.2 lwt.5.9.2 multicont.1.0.3 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocamlfind.1.9.8 ocplib-endian.1.2") (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=2.4 --depext-only -y effects-examples.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")) ) 2025-10-18 16:34.19: Waiting for resource in pool OCluster 2025-10-18 16:56.03: Waiting for worker… 2025-10-18 16:57.05: Got resource from pool OCluster Building on bremusa.ocamllabs.io hint: Using 'master' as the name for the initial branch. This default branch name hint: is subject to change. To configure the initial branch name to use in all hint: of your new repositories, which will suppress this warning, call: hint: hint: git config --global init.defaultBranch <name> hint: hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and hint: 'development'. The just-created branch can be renamed via this command: hint: hint: git branch -m <name> Initialised empty Git repository in /var/cache/obuilder/ocluster/git/effects-examples.git-a1bacf9d4bce447b5edfecd0b50085fe4d7672d3/.git/ HEAD is now at 8a7e80d Merge pull request #44 from ocaml-multicore/multicont-1.0.3 (from ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:1193b97b1fb681f2d335587f7d0f746174fef9b1dfb77984932b8f3ea440c840) Unable to find image 'ocaml/opam:ubuntu-25.10-ocaml-5.4@sha256:1193b97b1fb681f2d335587f7d0f746174fef9b1dfb77984932b8f3ea440c840' locally docker.io/ocaml/opam@sha256:1193b97b1fb681f2d335587f7d0f746174fef9b1dfb77984932b8f3ea440c840: Pulling from ocaml/opam 9b965cd35928: Already exists 8c34d5cb1909: Already exists 8f3d0e888f94: Already exists 75914a58b59d: Already exists 00c83499f5f8: Already exists 96557828c72d: Already exists e04c74427b07: Already exists 0b5b736f6f8b: Already exists 01ddd8730c9d: Already exists f367de3c6ef3: Already exists 8ea485ed8d07: Already exists 311ea7e25f3b: Already exists 2c44554f2c1d: Already exists 4b37f74f2fcf: Already exists 4c53b5e197d1: Already exists ae54a0cbaf07: Already exists ae54a0cbaf07: Already exists fbfa20dfc58f: Already exists 7a5fbf99492d: Already exists 55f27f5aae25: Already exists e5dc741ba80e: Already exists 4f4fb700ef54: Already exists ea4deec7b9ed: Already exists 575dd3f40a50: Already exists 23d3a726bc1c: Already exists 9c808f81626e: Already exists 6015bb64a01e: Already exists c8b90fbcd33e: Already exists 1b226c214b9a: Already exists c3f2fe2e9a34: Already exists 09907f66bdda: Already exists ac9b7119d067: Already exists c3c8c52036b2: Already exists 09d46cfd46ca: Already exists a93091442c09: Already exists 74daf3d638c4: Already exists 2ad878d09679: Already exists 4f990f691d95: Already exists b2d8c9546556: Already exists fc9e5ff183af: Already exists 1420c7e28df9: Pulling fs layer 0aa76275f3e3: Pulling fs layer 93d3fe1ef530: Pulling fs layer 0aa76275f3e3: Waiting 8141b93c2100: Pulling fs layer 99dd02af1531: Pulling fs layer 93d3fe1ef530: Waiting ed19dfeb135d: Pulling fs layer 8141b93c2100: Waiting 99dd02af1531: Waiting 400c4009ccf8: Pulling fs layer ed19dfeb135d: Waiting 400c4009ccf8: Waiting 1420c7e28df9: Download complete 1420c7e28df9: Pull complete 0aa76275f3e3: Verifying Checksum 0aa76275f3e3: Download complete 0aa76275f3e3: Pull complete 93d3fe1ef530: Verifying Checksum 93d3fe1ef530: Download complete 93d3fe1ef530: Pull complete 8141b93c2100: Verifying Checksum 8141b93c2100: Download complete 99dd02af1531: Download complete ed19dfeb135d: Verifying Checksum ed19dfeb135d: Download complete 400c4009ccf8: Verifying Checksum 400c4009ccf8: Download complete 8141b93c2100: Pull complete 99dd02af1531: Pull complete ed19dfeb135d: Pull complete 400c4009ccf8: Pull complete Digest: sha256:1193b97b1fb681f2d335587f7d0f746174fef9b1dfb77984932b8f3ea440c840 Status: Downloaded newer image for ocaml/opam@sha256:1193b97b1fb681f2d335587f7d0f746174fef9b1dfb77984932b8f3ea440c840 2025-10-18 16:57.09 ---> using "3be20ed9bde11478d710180884f722280dfc08d0ee382a0870797929c1d03cd4" from cache /: (comment ubuntu-25.10-5.4_opam-2.4) /: (user (uid 1000) (gid 1000)) /: (env CLICOLOR_FORCE 1) /: (env OPAMCOLOR always) /: (workdir /src) /src: (run (shell "sudo ln -f /usr/bin/opam-2.4 /usr/bin/opam")) 2025-10-18 16:57.09 ---> using "da6960692231a059dab52bacd68875d42b6b35b205939a28c7e327c1c48fb166" 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 2025-10-18 16:57.09 ---> using "e9b0ecbad3beb2e452151c1169527a8879012a89c3350bb7b46eace3adcd6aea" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-85-generic The OCaml toplevel, version 5.4.0 2.4.1 2025-10-18 16:57.09 ---> using "77ec95f59e260ec6798c95d067d0fb48d4d663c0eb249c2e29ab7e2bbb0a15a8" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2025-10-18 16:57.09 ---> using "112fb3f58706e2a934d242f81fc30ccd1722e38dcf8fa9411a64fe043420055b" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e c603e596bfaf195a5c1a3baf992b11c1de5ad35b || git fetch origin master) && git reset -q --hard c603e596bfaf195a5c1a3baf992b11c1de5ad35b && git log --no-decorate -n1 --oneline && opam update -u")) c603e596bf Merge pull request #28683 from Octachron/OCaml_5.4.0_release <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository Already up-to-date. Nothing to do. # To update the current shell environment, run: eval $(opam env) 2025-10-18 16:57.09 ---> using "10ebcea5a136997bb3d25fe8f52145c5fa29bb5dfd035f08bc3c6234649165e8" from cache /src: (copy (src effects-examples.opam) (dst ./)) 2025-10-18 16:57.09 ---> saved as "71a247c301db4f6c4b071c2404125f7201fb51b8012035e072b886c2fd56e782" /src: (run (network host) (shell "opam pin add -yn effects-examples.dev './'")) [NOTE] Package effects-examples does not exist in opam repositories registered in the current switch. [effects-examples.dev] synchronised (file:///src) effects-examples is now pinned to file:///src (version dev) [WARNING] Failed checks on effects-examples package definition from source at file:///src: warning 68: Missing field 'license' 2025-10-18 16:57.13 ---> saved as "78a1d3713358002c0f8a1a7e4481073f317b9c095acdce73d8bbd78471d6dca6" /src: (run (network host) (shell "echo '(lang dune 3.0)' > './dune-project'")) 2025-10-18 16:57.13 ---> saved as "7387e6d7eb30b3e4530141e63e59579920ede5b5b2fe6db61838574fd4f22ac8" /src: (env DEPS "base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cppo.1.8.0 csexp.1.5.2 dune.3.20.2 dune-configurator.3.20.2 lwt.5.9.2 multicont.1.0.3 ocaml.5.4.0 ocaml-base-compiler.5.4.0 ocaml-compiler.5.4.0 ocaml-config.3 ocaml-options-vanilla.1 ocamlfind.1.9.8 ocplib-endian.1.2") /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=2.4 --depext-only -y effects-examples.dev $DEPS")) + /usr/bin/sudo "apt-get" "update" - Get:1 http://security.ubuntu.com/ubuntu questing-security InRelease [136 kB] - Hit:2 http://archive.ubuntu.com/ubuntu questing InRelease - Get:3 http://archive.ubuntu.com/ubuntu questing-updates InRelease [136 kB] - Get:4 http://archive.ubuntu.com/ubuntu questing-backports InRelease [133 kB] - Fetched 404 kB in 1s (594 kB/s) - Reading package lists... - <><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><> [effects-examples.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 3). [NOTE] Package ocaml-compiler is already installed (current version is 5.4.0). [NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0). [NOTE] Package ocaml is already installed (current version is 5.4.0). [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). 2025-10-18 16:57.36 ---> saved as "1802978117b9a192a2c251c66437456fc96efc75d25085ab6843fb0370ad553d" /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 3). [NOTE] Package ocaml-compiler is already installed (current version is 5.4.0). [NOTE] Package ocaml-base-compiler is already installed (current version is 5.4.0). [NOTE] Package ocaml is already installed (current version is 5.4.0). [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 9 packages - install base-bytes base - install cppo 1.8.0 - install csexp 1.5.2 - install dune 3.20.2 - install dune-configurator 3.20.2 - install lwt 5.9.2 - install multicont 1.0.3 - install ocamlfind 1.9.8 - install ocplib-endian 1.2 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved cppo.1.8.0 (cached) -> retrieved csexp.1.5.2 (cached) -> retrieved lwt.5.9.2 (cached) -> retrieved multicont.1.0.3 (https://opam.ocaml.org/cache) -> retrieved ocamlfind.1.9.8 (cached) -> retrieved ocplib-endian.1.2 (cached) -> retrieved dune.3.20.2, dune-configurator.3.20.2 (cached) -> installed ocamlfind.1.9.8 -> installed base-bytes.base -> installed dune.3.20.2 -> installed csexp.1.5.2 -> installed cppo.1.8.0 -> installed ocplib-endian.1.2 -> installed dune-configurator.3.20.2 -> installed multicont.1.0.3 -> installed lwt.5.9.2 Done. # To update the current shell environment, run: eval $(opam env) 2025-10-18 16:59.45 ---> saved as "bd64ab18f3776517bc6cd7f77c0f20e73a83dcfa3545d3e3518c4945fcbb4fb1" /src: (copy (src .) (dst /src)) 2025-10-18 16:59.46 ---> saved as "b83f6cd7ab2b346630f50ace3589e6e9cbc2b1dc1daef96f910af17d92e1d5ad" /src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build")) 2025-10-18 16:59.47 ---> saved as "31dfdefc996b861dc4ddfda5ca93a2aa534c7c647d33653d20bc546e53f69ad9" Job succeeded 2025-10-18 16:59.47: Job succeeded