2026-03-28 07:30.36: New job: test ygrek/ocaml-snappy https://github.com/ygrek/ocaml-snappy.git#refs/heads/master (329a58d03ad5b3d6fa131cafbb8de0eb83d22a81) (linux-x86_64:debian-12-4.14_opam-2.5)Base: ocaml/opam:debian-12-ocaml-4.14@sha256:a1f2d2c02c09f799df9c55806e2a2376511a5fcfccb10a5d52027260a8fc2217Opam project buildTo reproduce locally:git clone --recursive "https://github.com/ygrek/ocaml-snappy.git" -b "master" && cd "ocaml-snappy" && git reset --hard 329a58d0cat > Dockerfile <<'END-OF-DOCKERFILE'FROM ocaml/opam:debian-12-ocaml-4.14@sha256:a1f2d2c02c09f799df9c55806e2a2376511a5fcfccb10a5d52027260a8fc2217# debian-12-4.14_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 9f189ca4f94fbb5f0045820bf3c4ffafb21145ef || git fetch origin master) && git reset -q --hard 9f189ca4f94fbb5f0045820bf3c4ffafb21145ef && git log --no-decorate -n1 --oneline && opam update -uCOPY --chown=1000:1000 snappy.opam ./RUN opam pin add -yn snappy.dev './'RUN echo '(lang dune 3.0)' > './dune-project'ENV DEPS="base-bigarray.base base-threads.base base-unix.base conf-snappy.1 dune.3.22.0 ocaml.4.14.3 ocaml-base-compiler.4.14.3 ocaml-config.2 ocaml-options-vanilla.1"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.5 --depext-only -y snappy.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . /srcRUN opam exec -- dune build @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-03-28 07:30.36: Using cache hint "ygrek/ocaml-snappy-ocaml/opam:debian-12-ocaml-4.14@sha256:a1f2d2c02c09f799df9c55806e2a2376511a5fcfccb10a5d52027260a8fc2217-debian-12-4.14_opam-2.5-1c50b52e5c631178b11c6be258e86ff8"2026-03-28 07:30.36: Using OBuilder spec:((from ocaml/opam:debian-12-ocaml-4.14@sha256:a1f2d2c02c09f799df9c55806e2a2376511a5fcfccb10a5d52027260a8fc2217)(comment debian-12-4.14_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 9f189ca4f94fbb5f0045820bf3c4ffafb21145ef || git fetch origin master) && git reset -q --hard 9f189ca4f94fbb5f0045820bf3c4ffafb21145ef && git log --no-decorate -n1 --oneline && opam update -u"))(copy (src snappy.opam) (dst ./))(run (network host)(shell "opam pin add -yn snappy.dev './'"))(run (shell "echo '(lang dune 3.0)' > './dune-project'"))(env DEPS "base-bigarray.base base-threads.base base-unix.base conf-snappy.1 dune.3.22.0 ocaml.4.14.3 ocaml-base-compiler.4.14.3 ocaml-config.2 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 snappy.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")))2026-03-28 07:30.36: Waiting for resource in pool OCluster2026-03-28 07:54.01: Waiting for worker…2026-03-28 07:56.22: Got resource from pool OClusterBuilding on laodoke.caelum.ci.devhint: Using 'master' as the name for the initial branch. This default branch namehint: is subject to change. To configure the initial branch name to use in allhint: 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' andhint: '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/ocaml-snappy.git-aa278a0c62dca1447db591838af078915226c67b/.git/HEAD is now at 329a58d release 0.1.2(from ocaml/opam:debian-12-ocaml-4.14@sha256:a1f2d2c02c09f799df9c55806e2a2376511a5fcfccb10a5d52027260a8fc2217)Unable to find image 'ocaml/opam:debian-12-ocaml-4.14@sha256:a1f2d2c02c09f799df9c55806e2a2376511a5fcfccb10a5d52027260a8fc2217' locallydocker.io/ocaml/opam@sha256:a1f2d2c02c09f799df9c55806e2a2376511a5fcfccb10a5d52027260a8fc2217: Pulling from ocaml/opam9d2f29087bcd: Pulling fs layer3d63f9d53c2b: Pulling fs layer581e536e9c04: Pulling fs layer8b32b15db9c2: Pulling fs layer408d2355c113: Pulling fs layer4235236a0fe3: Pulling fs layerf48c75869e1a: Pulling fs layer1261eb220b8f: Pulling fs layer8b32b15db9c2: Waiting408d2355c113: Waiting4235236a0fe3: Waitinga244a6fef99e: Pulling fs layer392586fbca03: Pulling fs layerf48c75869e1a: Waitinge1760259bd89: Pulling fs layer1261eb220b8f: Waitinga244a6fef99e: Waiting1d7cd08a0b9b: Pulling fs layer392586fbca03: Waitinge1760259bd89: Waiting2757fd908803: Pulling fs layer6261487318e4: Pulling fs layer2757fd908803: Waitingbbd582f02377: Pulling fs layer1d7cd08a0b9b: Waiting6261487318e4: Waitingd02fe26dde67: Pulling fs layerbbd582f02377: Waitinge321b958816b: Pulling fs layerd02fe26dde67: Waitingcb786fbab3ce: Pulling fs layere321b958816b: Waitinga5f58f012090: Pulling fs layercb786fbab3ce: Waiting5ce44f287fe6: Pulling fs layera5f58f012090: Waiting68858d7e7ed5: Pulling fs layer99c08a38f7e4: Pulling fs layer5ce44f287fe6: Waiting68858d7e7ed5: Waiting4f4fb700ef54: Pulling fs layer99c08a38f7e4: Waiting7ee83e62e55c: Pulling fs layeradbf0dbe3905: Pulling fs layer4f4fb700ef54: Waitingcdabdfaee61d: Pulling fs layeradbf0dbe3905: Waitingf41d7f84e505: Pulling fs layeref45d1110495: Pulling fs layercdabdfaee61d: Waiting8440f427de1c: Pulling fs layeref45d1110495: Waiting6969c6a5b58f: Pulling fs 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Checksumde8eb182d023: Download completef0395d2a6367: Verifying Checksumf0395d2a6367: Download complete8e239ac08ddb: Verifying Checksum8e239ac08ddb: Download complete7a665cb82eac: Download complete4235236a0fe3: Verifying Checksum4235236a0fe3: Download complete60dc4e46b40a: Verifying Checksum60dc4e46b40a: Download completef32b2a66a42c: Download complete63909b128782: Download completea4d76f074565: Download complete4235236a0fe3: Pull completef48c75869e1a: Pull complete1261eb220b8f: Pull completea244a6fef99e: Pull complete392586fbca03: Pull completee1760259bd89: Pull complete1d7cd08a0b9b: Pull complete2757fd908803: Pull complete6261487318e4: Pull completebbd582f02377: Pull completed02fe26dde67: Pull completee321b958816b: Pull completecb786fbab3ce: Pull completea5f58f012090: Pull complete5ce44f287fe6: Pull complete68858d7e7ed5: Pull complete99c08a38f7e4: Pull complete4f4fb700ef54: Pull complete7ee83e62e55c: Pull completeadbf0dbe3905: Pull completecdabdfaee61d: Pull completef41d7f84e505: Pull completeef45d1110495: Pull complete8440f427de1c: Pull complete6969c6a5b58f: Pull complete91a3df8f76c1: Pull complete283633d63c17: Pull completeb32cee5efb50: Pull complete0e187754241c: Pull completeb539c2d2dff8: Pull complete49fdd3d21fd4: Verifying Checksum49fdd3d21fd4: Download complete49fdd3d21fd4: Pull complete06c591c8ddcc: Pull completede8eb182d023: Pull completef0395d2a6367: Pull complete8e239ac08ddb: Pull complete7a665cb82eac: Pull complete60dc4e46b40a: Pull completef32b2a66a42c: Pull complete63909b128782: Pull completea4d76f074565: Pull completeDigest: sha256:a1f2d2c02c09f799df9c55806e2a2376511a5fcfccb10a5d52027260a8fc2217Status: Downloaded newer image for ocaml/opam@sha256:a1f2d2c02c09f799df9c55806e2a2376511a5fcfccb10a5d52027260a8fc22172026-03-28 07:56.24 ---> using "5ba77b184044a1152dad4a526cc79dfa9aa3e8978ea7f15538a3d2bc20679358" from cache/: (comment debian-12-4.14_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"))2026-03-28 07:56.24 ---> using "ac518c0236accf65b1e565d293be5d2f0b11014dfb1f20e3af7488f701ac7f96" 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] Initialised2026-03-28 07:56.24 ---> using "1ee1f8ddaf3531660a80c4d4214d68aee62a60930819ce36f0288ecea5106e67" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-106-genericThe OCaml toplevel, version 4.14.32.5.02026-03-28 07:56.24 ---> using "5436304947cbb19bb2a8079b911260a013c4956131337c83052a04045cdb7a45" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-03-28 07:56.24 ---> using "78073250ba9b9eca848aea2366daefbbd862a18338f86de423bc035b40edd59f" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 9f189ca4f94fbb5f0045820bf3c4ffafb21145ef || git fetch origin master) && git reset -q --hard 9f189ca4f94fbb5f0045820bf3c4ffafb21145ef && git log --no-decorate -n1 --oneline && opam update -u"))9f189ca4f9 Merge pull request #29562 from shonfeder/release-dune-3.22.0<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repositoryEverything as up-to-date as possible (run with --verbose to show unavailable upgrades).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)2026-03-28 07:56.24 ---> using "7ca5c653eeeb9fd5b28d739252a0e48b6ed3d8be4333c6329fc7cc0655bf5ea5" from cache/src: (copy (src snappy.opam) (dst ./))2026-03-28 07:56.24 ---> saved as "fd1186da86cc3e5ae6ce22720f322ef77cb4efc215bea851b651998c99490c00"/src: (run (network host)(shell "opam pin add -yn snappy.dev './'"))[snappy.dev] synchronised (file:///src)snappy is now pinned to file:///src (version dev)2026-03-28 07:56.27 ---> saved as "5050f99f2b1943a6e0415aaea53ea22e0a8beb1184be6e26ba04a66ba2e9c22e"/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-03-28 07:56.27 ---> saved as "17509e1424aa365798a211e7dac5e050c151bb4958fd23814159363c69277b07"/src: (env DEPS "base-bigarray.base base-threads.base base-unix.base conf-snappy.1 dune.3.22.0 ocaml.4.14.3 ocaml-base-compiler.4.14.3 ocaml-config.2 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 snappy.dev $DEPS"))+ /usr/bin/sudo "apt-get" "update"- Hit:1 http://deb.debian.org/debian bookworm InRelease- Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]- Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]- Get:4 http://deb.debian.org/debian-security bookworm-security/main amd64 Packages [294 kB]- Fetched 397 kB in 4s (88.5 kB/s)- Reading package lists...-<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[snappy.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 2).[NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.3).[NOTE] Package ocaml is already installed (current version is 4.14.3).[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-bigarray is already installed (current version is base).The following system packages will first need to be installed:libsnappy-dev<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "libsnappy-dev"- debconf: delaying package configuration, since apt-utils is not installed- Selecting previously unselected package libsnappy1v5:amd64.- (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 18755 files and directories currently installed.)- Preparing to unpack .../libsnappy1v5_1.1.9-3_amd64.deb ...- Unpacking libsnappy1v5:amd64 (1.1.9-3) ...- Selecting previously unselected package libsnappy-dev:amd64.- Preparing to unpack .../libsnappy-dev_1.1.9-3_amd64.deb ...- Unpacking libsnappy-dev:amd64 (1.1.9-3) ...- Setting up libsnappy1v5:amd64 (1.1.9-3) ...- Setting up libsnappy-dev:amd64 (1.1.9-3) ...- Processing triggers for libc-bin (2.36-9+deb12u13) ...# To update the current shell environment, run: eval $(opam env)2026-03-28 07:56.55 ---> saved as "5be6e088220034d5806978e5e0ba5c5cd1f19e2ca7eb1939566fa1ba0c046474"/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 2).[NOTE] Package ocaml-base-compiler is already installed (current version is 4.14.3).[NOTE] Package ocaml is already installed (current version is 4.14.3).[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-bigarray is already installed (current version is base).The following actions will be performed:=== install 2 packages- install conf-snappy 1- install dune 3.22.0<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved conf-snappy.1 (https://opam.ocaml.org/cache)-> retrieved dune.3.22.0 (cached)-> installed conf-snappy.1-> installed dune.3.22.0Done.# To update the current shell environment, run: eval $(opam env)2026-03-28 07:58.37 ---> saved as "59a840247efc79ba35c5d11c6e461217308a7b731cf59d1bfa7f2cd2eb86bdb2"/src: (copy (src .) (dst /src))2026-03-28 07:58.37 ---> saved as "79dc042c72ff24d578450f3df261f144b51358b35daf9ee5d81a8d8e4e9b2b7b"/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))(cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w @1..3@5..28@30..39@43@46..47@49..57@61..62-40 -strict-sequence -strict-formats -short-paths -keep-locs -g -bin-annot -I .test.eobjs/byte -I src/.snappy.objs/byte -no-alias-deps -opaque -o .test.eobjs/byte/test.cmo -c -impl test.ml)File "test.ml", line 7, characters 6-79:7 | for i = 0 to pred n do Buffer.add_char b (Char.chr (Random.int 256)) done;^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^Error (warning 35 [unused-for-index]): unused for-loop index i.File "test.ml", line 18, characters 2-60:18 | for n = 0 to 1024 do check (Random.int 16384 + 16384) done;^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^Error (warning 35 [unused-for-index]): unused for-loop index n."/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 12026-03-28 07:58.39: Job failed: Failed: Build failed