2026-04-13 10:25.12: New job: test ygrek/ocaml-snappy https://github.com/ygrek/ocaml-snappy.git#refs/heads/master (329a58d03ad5b3d6fa131cafbb8de0eb83d22a81) (linux-x86_64:debian-13-4.14_opam-2.5) Base: ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126 Opam project build To reproduce locally: git clone --recursive "https://github.com/ygrek/ocaml-snappy.git" -b "master" && cd "ocaml-snappy" && git reset --hard 329a58d0 cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126 # debian-13-4.14_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 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 d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && git log --no-decorate -n1 --oneline && opam update -u COPY --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.3.22.1 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 $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 2026-04-13 10:25.12: Using cache hint "ygrek/ocaml-snappy-ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126-debian-13-4.14_opam-2.5-ffabe67b719638813002356ba33056ed" 2026-04-13 10:25.12: Using OBuilder spec: ((from ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126) (comment debian-13-4.14_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 d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && 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.3.22.1 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")) ) 2026-04-13 10:25.12: Waiting for resource in pool OCluster 2026-04-13 12:51.10: Waiting for worker… 2026-04-13 12:53.02: Got resource from pool OCluster Building on phoebe.caelum.ci.dev 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> Initialized 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-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126) Unable to find image 'ocaml/opam:debian-13-ocaml-4.14@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126' locally docker.io/ocaml/opam@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126: Pulling from ocaml/opam 8f6ad858d0a4: Already exists 9cb5e198c8cf: Already exists 2d346d36dcf2: Already exists cdc35e289b8d: Already exists aeb7244bb580: Already exists fc1943254a0d: Already exists 84238c416f8e: Already exists fbbfe75d3112: Already exists 221fdc5d9929: Already exists 1fec9149b52a: Already exists 9c6e52557f24: Already exists 8737f5036aae: Already exists d69c4074de14: Already exists 7237152a5f04: Already exists fba4b414d8a0: Already exists 40d552afb3ef: Already exists 077cc17dc8e4: Already exists 077cc17dc8e4: Already exists 169e1be36a55: Already exists 0a8a005097ab: Already exists caba3ec4b361: Already exists 6a364dc641f8: Already exists 4f4fb700ef54: Already exists ab8052928cdc: Already exists f5717a28dd6a: Already exists 79233a9b9bed: Already exists d832d53e7392: Already exists 1872dad82243: Already exists bfd849b08ba7: Already exists 834a8024ef15: Already exists 98ccec79258b: Already exists fb48f36a0542: Already exists 3688b13db8e7: Already exists a5c099f5f72c: Already exists 1ff1760de5b0: Already exists 98eec6764aa5: Already exists aa22ae69debd: Already exists 12bfb7b962a2: Already exists ec25ce9bb816: Already exists beadd3cf7357: Already exists d0d0c65a426d: Already exists 27080da82c6b: Pulling fs layer 3b99adeb504e: Pulling fs layer 867c8a52ad10: Pulling fs layer 01ca275a6ca2: Pulling fs layer 01ca275a6ca2: Waiting 867c8a52ad10: Verifying Checksum 867c8a52ad10: Download complete 3b99adeb504e: Verifying Checksum 3b99adeb504e: Download complete 01ca275a6ca2: Verifying Checksum 01ca275a6ca2: Download complete 27080da82c6b: Verifying Checksum 27080da82c6b: Download complete 27080da82c6b: Pull complete 3b99adeb504e: Pull complete 867c8a52ad10: Pull complete 01ca275a6ca2: Pull complete Digest: sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126 Status: Downloaded newer image for ocaml/opam@sha256:ec5999d94ff5da2754b2d163583ef868ccaefbaaabbe66412fde8712ae6f5126 2026-04-13 12:53.03 ---> using "d0e330c08fa445d83f06df86dbe749aac73c20b9c3be340824d01a143f189b82" from cache /: (comment debian-13-4.14_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")) 2026-04-13 12:53.03 ---> using "f59e5580f17ca54c6c0f0e8726a93a153599c5e1ef8bf3f75a71ea998e4d5bd4" 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 2026-04-13 12:53.03 ---> using "e5f050c685be6325713c9c81ec0604f69b60a3eb2e3c52aa4f8819fabb9fa2cd" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-107-generic The OCaml toplevel, version 4.14.3 2.5.0 2026-04-13 12:53.03 ---> using "71c131cebc84b80d37c64736b2b671e51b17c599ce05b0c60675c940259a4b2d" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-04-13 12:53.03 ---> using "a5f96b2cefe3b06adfa1cbb2cf3eb286dd052053da8bf6c0b210857fc5d42690" from cache /src: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "cd ~/opam-repository && (git cat-file -e d06cfb1853afceb1dc127f88edaac3f8110bf6cc || git fetch origin master) && git reset -q --hard d06cfb1853afceb1dc127f88edaac3f8110bf6cc && git log --no-decorate -n1 --oneline && opam update -u")) d06cfb1853 Merge pull request #29632 from shonfeder/release-dune-3.22.1 <><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><> [default] synchronised from git+file:///home/opam/opam-repository Everything 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) 2026-04-13 12:53.03 ---> using "2dc58a852cf9690148b067a959473338a0a7bfd031c39e51e4e30dcacfedb076" from cache /src: (copy (src snappy.opam) (dst ./)) 2026-04-13 12:53.03 ---> saved as "0ed2101d70a711609f501c5ad2a396cda8b43c620e432de1b41bf880000ac16f" /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) 2026-04-13 12:53.07 ---> saved as "b1cf6384f51a2147fa0ab23ce938057aea11419b4780ef145c779ea2a85d460a" /src: (run (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-04-13 12:53.07 ---> saved as "c50e9689fda7d131b698c60e684cb5998635396aa571daed66d0f35abcfabc4f" /src: (env DEPS "base-bigarray.base base-threads.base base-unix.base conf-snappy.1 dune.3.22.1 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 trixie InRelease - Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB] - Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB] - Get:4 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [122 kB] - Fetched 213 kB in 0s (1004 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" - 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 ... 20623 files and directories currently installed.) - Preparing to unpack .../libsnappy1v5_1.2.2-1_amd64.deb ... - Unpacking libsnappy1v5:amd64 (1.2.2-1) ... - Selecting previously unselected package libsnappy-dev:amd64. - Preparing to unpack .../libsnappy-dev_1.2.2-1_amd64.deb ... - Unpacking libsnappy-dev:amd64 (1.2.2-1) ... - Setting up libsnappy1v5:amd64 (1.2.2-1) ... - Setting up libsnappy-dev:amd64 (1.2.2-1) ... - Processing triggers for libc-bin (2.41-12+deb13u2) ... # To update the current shell environment, run: eval $(opam env) 2026-04-13 12:53.35 ---> saved as "77d7d4bb2657f8e035eda7f021fbbbdd63c4d21086cd7ccabe26bc1a986352f8" /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 3.22.1 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved conf-snappy.1 (https://opam.ocaml.org/cache) -> installed conf-snappy.1 -> retrieved dune.3.22.1 (cached) -> installed dune.3.22.1 Done. # To update the current shell environment, run: eval $(opam env) 2026-04-13 12:55.09 ---> saved as "8eaa1bb214e43c7be3a781b992d09282fa6ac973c8002d23a17f38f96c36e77f" /src: (copy (src .) (dst /src)) 2026-04-13 12:55.10 ---> saved as "6b3790b366764edbf4665ec7b3a88bbe9ae09f90b7867bb1391f5859e153706d" /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 1 2026-04-13 12:55.12: Job failed: Failed: Build failed