2026-04-25 17:23.21: New job: test ygrek/ocaml-snappy https://github.com/ygrek/ocaml-snappy.git#refs/heads/master (329a58d03ad5b3d6fa131cafbb8de0eb83d22a81) (linux-x86_64:ubuntu-25.04-5.4_opam-2.5)Base: ocaml/opam:ubuntu-25.04-ocaml-5.4@sha256:1349371fdc9b62b02ffed54cc7820257fdab26cac7d31ecd02113a584b129691Opam 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:ubuntu-25.04-ocaml-5.4@sha256:1349371fdc9b62b02ffed54cc7820257fdab26cac7d31ecd02113a584b129691# ubuntu-25.04-5.4_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 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && 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-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base conf-snappy.1 dune.3.22.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 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-BLOCK2026-04-25 17:23.21: Using cache hint "ygrek/ocaml-snappy-ocaml/opam:ubuntu-25.04-ocaml-5.4@sha256:1349371fdc9b62b02ffed54cc7820257fdab26cac7d31ecd02113a584b129691-ubuntu-25.04-5.4_opam-2.5-8a0d452280b50bf4fc1a59715eb423c5"2026-04-25 17:23.21: Using OBuilder spec:((from ocaml/opam:ubuntu-25.04-ocaml-5.4@sha256:1349371fdc9b62b02ffed54cc7820257fdab26cac7d31ecd02113a584b129691)(comment ubuntu-25.04-5.4_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 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && 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-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base conf-snappy.1 dune.3.22.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 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")))2026-04-25 17:23.21: Waiting for resource in pool OCluster2026-04-25 17:29.35: Waiting for worker…2026-04-25 17:32.48: Got resource from pool OClusterBuilding on asteria.caelum.ci.devAll commits already cachedHEAD is now at 329a58d release 0.1.2(from ocaml/opam:ubuntu-25.04-ocaml-5.4@sha256:1349371fdc9b62b02ffed54cc7820257fdab26cac7d31ecd02113a584b129691)2026-04-25 17:32.48 ---> using "f5e318b4f7827354c80e01f5eb08623f14d26dfa9c8f46d7e4a7dc1dd9ab7d51" from cache/: (comment ubuntu-25.04-5.4_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"))2026-04-25 17:32.48 ---> using "c9f84644fcc821060258035ba30dfb4315e5df38a445f49836385c483d31f3a8" 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] Initialised2026-04-25 17:32.48 ---> using "f27a52b673e6e3229d278370091ff6620c479075b9adc6b6ca721f257c891299" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-107-genericThe OCaml toplevel, version 5.4.12.5.02026-04-25 17:32.48 ---> using "63d0aa07c2e13f7fb08e30a71f13a7a028dcde32b34e098fd5a3a3bb36803634" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-04-25 17:32.48 ---> using "6ccde9157983d8bdc8449890dbf5280f5a1b54008b8dfa81011feef78f5cee9f" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEAD42844088d7..f83868273d master -> origin/master5f7bb1a6e6 Merge pull request #29704 from shonfeder/release-dune-3.22.2<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repositoryEverything as up-to-date as possibleHowever, 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)2026-04-25 17:32.48 ---> using "d07808975f80284efc1065bbedd6b695fef964355625506bc4000f19f0db7bf6" from cache/src: (copy (src snappy.opam) (dst ./))2026-04-25 17:32.49 ---> saved as "0fec11d1a47e98783e653e5eed1a19ac0d96d31ce10b6350c00f35bcb21c58f9"/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)2026-04-25 17:32.50 ---> saved as "2723282726c89bdb3ae265ad07051cf8ad1d3c9e17546bd218dcf60e55e33c65"/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-04-25 17:32.51 ---> saved as "79dff8d73ba8a7ee3e7cf1bbb9ea5c7be9def795c5d06d5c6bf72c691123b74f"/src: (env DEPS "base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base conf-snappy.1 dune.3.22.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 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://security.ubuntu.com/ubuntu plucky-security InRelease- Hit:2 http://archive.ubuntu.com/ubuntu plucky 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 ><><><><><><><><><><><><><><><><><><><><><><>[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 3).[NOTE] Package ocaml-compiler is already installed (current version is 5.4.1).[NOTE] Package ocaml-base-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 system packages will first need to be installed:libsnappy-dev<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "libsnappy-dev"- 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 ... 16533 files and directories currently installed.)- Preparing to unpack .../libsnappy1v5_1.2.1-1_amd64.deb ...- Unpacking libsnappy1v5:amd64 (1.2.1-1) ...- Selecting previously unselected package libsnappy-dev:amd64.- Preparing to unpack .../libsnappy-dev_1.2.1-1_amd64.deb ...- Unpacking libsnappy-dev:amd64 (1.2.1-1) ...- Setting up libsnappy1v5:amd64 (1.2.1-1) ...- Setting up libsnappy-dev:amd64 (1.2.1-1) ...- Processing triggers for libc-bin (2.41-6ubuntu1.2) ...# To update the current shell environment, run: eval $(opam env)2026-04-25 17:33.03 ---> saved as "3bebf9bb74fac4290f0e93166d1ffe739dca340e769d96d51d9b9cd59cea6b03"/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 5.4.1).[NOTE] Package ocaml-base-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 2 packages- install conf-snappy 1- install dune 3.22.2<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved conf-snappy.1 (cached)-> installed conf-snappy.1-> retrieved dune.3.22.2 (cached)-> installed dune.3.22.2Done.# To update the current shell environment, run: eval $(opam env)2026-04-25 17:33.34 ---> saved as "5a8cf17d4b2815e581550a4cce7976cf2fa2a442fa2aa8a1688cb9b519585c1e"/src: (copy (src .) (dst /src))2026-04-25 17:33.34 ---> saved as "d5585d5c73c54e9c30ae114a6db899317f901be94922656f629e60d08003bd60"/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))(cd _build/default && /home/opam/.opam/5.4/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 -bin-annot-occurrences -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 12026-04-25 17:33.35: Job failed: Failed: Build failed