2026-04-25 17:23.19: New job: test ygrek/ocaml-snappy https://github.com/ygrek/ocaml-snappy.git#refs/heads/master (329a58d03ad5b3d6fa131cafbb8de0eb83d22a81) (linux-x86_64:ubuntu-24.04-4.14_opam-2.5) Base: ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:378b80130a8565c501d060ebe277e1585177fb5caf23983614eeb4d30378ddea 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:ubuntu-24.04-ocaml-4.14@sha256:378b80130a8565c501d060ebe277e1585177fb5caf23983614eeb4d30378ddea # ubuntu-24.04-4.14_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 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 || git fetch origin master) && git reset -q --hard 5f7bb1a6e69f1ea15d8b2b08eeaa70a162c6fd41 && 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.3.22.2 ocaml.4.14.2 ocaml-base-compiler.4.14.2 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 2026-04-25 17:23.19: Using cache hint "ygrek/ocaml-snappy-ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:378b80130a8565c501d060ebe277e1585177fb5caf23983614eeb4d30378ddea-ubuntu-24.04-4.14_opam-2.5-4b6162d627f679e6ad1f92ebdc0f5e0b" 2026-04-25 17:23.19: Using OBuilder spec: ((from ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:378b80130a8565c501d060ebe277e1585177fb5caf23983614eeb4d30378ddea) (comment ubuntu-24.04-4.14_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 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-threads.base base-unix.base conf-snappy.1 dune.3.22.2 ocaml.4.14.2 ocaml-base-compiler.4.14.2 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")) ) 2026-04-25 17:23.19: Waiting for resource in pool OCluster 2026-04-25 17:24.52: Waiting for worker… 2026-04-25 17:30.44: Got resource from pool OCluster Building on phoebe.caelum.ci.dev All commits already cached HEAD is now at 329a58d release 0.1.2 (from ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:378b80130a8565c501d060ebe277e1585177fb5caf23983614eeb4d30378ddea) Unable to find image 'ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:378b80130a8565c501d060ebe277e1585177fb5caf23983614eeb4d30378ddea' locally docker.io/ocaml/opam@sha256:378b80130a8565c501d060ebe277e1585177fb5caf23983614eeb4d30378ddea: Pulling from ocaml/opam 80cd068f43f1: Pulling fs layer ba65b9b25356: Pulling fs layer 5387021a7f0f: Pulling fs layer 90b941057569: Pulling fs layer 80cd068f43f1: Waiting fcef665c9f0f: Pulling fs layer 5387021a7f0f: Waiting ba65b9b25356: Waiting 90b941057569: Waiting fcef665c9f0f: Waiting 5387021a7f0f: Verifying Checksum 5387021a7f0f: Download complete 90b941057569: Download complete fcef665c9f0f: Verifying Checksum fcef665c9f0f: Download complete 80cd068f43f1: Verifying Checksum 80cd068f43f1: Download complete ba65b9b25356: Verifying Checksum ba65b9b25356: Download complete 80cd068f43f1: Pull complete ba65b9b25356: Pull complete 5387021a7f0f: Pull complete 90b941057569: Pull complete fcef665c9f0f: Pull complete Digest: sha256:378b80130a8565c501d060ebe277e1585177fb5caf23983614eeb4d30378ddea Status: Downloaded newer image for ocaml/opam@sha256:378b80130a8565c501d060ebe277e1585177fb5caf23983614eeb4d30378ddea 2026-04-25 17:30.45 ---> using "ea8d72b3575eca98b89c48a4da7927bcdb82725502d2ac0615817875479dfe5d" from cache /: (comment ubuntu-24.04-4.14_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")) 2026-04-25 17:30.45 ---> using "57fe826c4cda6eaa6b11381783c9525d7921b5e90796ab1d3423a3a40e1ee953" 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 2026-04-25 17:30.45 ---> using "55a2f6dfe7a6290730525b3a4346ce960918d715c2bdbaeb5a4b7e33780adb10" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-107-generic The OCaml toplevel, version 4.14.2 2.5.0 2026-04-25 17:30.45 ---> using "defa03e276e0c2b0cec70b115b3a595fb4615d03b5da0739dd2698dea1a3bf33" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-04-25 17:30.45 ---> using "4130f1cefdaf8d88e4eba48981cb16b1f82735c22f891280afafcafba369761a" 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_HEAD 76bf2ed944..f83868273d master -> origin/master 5f7bb1a6e6 Merge pull request #29704 from shonfeder/release-dune-3.22.2 <><> 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) 2026-04-25 17:31.17 ---> saved as "6b4d82a85114a86288198e0d8933add55b190dcbcbd4974857fd4dcde6ba8ead" /src: (copy (src snappy.opam) (dst ./)) 2026-04-25 17:31.17 ---> saved as "45b71bd33f2db80ecbbbdb27615948b28f73c0ccc4188531000ee8c5b4e229f1" /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 17:31.21 ---> saved as "a7712383e6a0e9d3e1b3e6bae8e264f0542529a148f0824bb8e1c9bb19f19285" /src: (run (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-04-25 17:31.21 ---> saved as "16dded861f16134cb9b40d92d140d427228b7b98b0ad7f8a2d70b12774ded7c2" /src: (env DEPS "base-bigarray.base base-threads.base base-unix.base conf-snappy.1 dune.3.22.2 ocaml.4.14.2 ocaml-base-compiler.4.14.2 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" - Get:1 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB] - Hit:2 http://archive.ubuntu.com/ubuntu noble InRelease - Get:3 http://archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB] - Get:4 http://archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB] - Get:5 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages [1981 kB] - Get:6 http://security.ubuntu.com/ubuntu noble-security/multiverse amd64 Packages [34.2 kB] - Get:7 http://security.ubuntu.com/ubuntu noble-security/restricted amd64 Packages [3479 kB] - Get:8 http://security.ubuntu.com/ubuntu noble-security/universe amd64 Packages [1498 kB] - Get:9 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages [2354 kB] - Get:10 http://archive.ubuntu.com/ubuntu noble-updates/universe amd64 Packages [2141 kB] - Get:11 http://archive.ubuntu.com/ubuntu noble-updates/restricted amd64 Packages [3658 kB] - Get:12 http://archive.ubuntu.com/ubuntu noble-updates/multiverse amd64 Packages [38.0 kB] - Get:13 http://archive.ubuntu.com/ubuntu noble-backports/universe amd64 Packages [35.6 kB] - Get:14 http://archive.ubuntu.com/ubuntu noble-backports/multiverse amd64 Packages [671 B] - Get:15 http://archive.ubuntu.com/ubuntu noble-backports/main amd64 Packages [49.0 kB] - Fetched 15.6 MB in 2s (8215 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 4.14.2). [NOTE] Package ocaml is already installed (current version is 4.14.2). [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 ... 16335 files and directories currently installed.) - Preparing to unpack .../libsnappy1v5_1.1.10-1build1_amd64.deb ... - Unpacking libsnappy1v5:amd64 (1.1.10-1build1) ... - Selecting previously unselected package libsnappy-dev:amd64. - Preparing to unpack .../libsnappy-dev_1.1.10-1build1_amd64.deb ... - Unpacking libsnappy-dev:amd64 (1.1.10-1build1) ... - Setting up libsnappy1v5:amd64 (1.1.10-1build1) ... - Setting up libsnappy-dev:amd64 (1.1.10-1build1) ... - Processing triggers for libc-bin (2.39-0ubuntu8.7) ... # To update the current shell environment, run: eval $(opam env) 2026-04-25 17:31.55 ---> saved as "8d2aa3c1c866af141dd135a23f611f907e3446745c0698468e9bb3f985401914" /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 4.14.2). [NOTE] Package ocaml is already installed (current version is 4.14.2). [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 3.22.2 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved conf-snappy.1 (cached) -> installed conf-snappy.1 -> retrieved dune.3.22.2 (cached) -> installed dune.3.22.2 Done. # To update the current shell environment, run: eval $(opam env) 2026-04-25 17:33.07 ---> saved as "d1a499ca86e87a70e43f80fdbdc3c0b6c49d030048ddb465308e1041beeb37e3" /src: (copy (src .) (dst /src)) 2026-04-25 17:33.07 ---> saved as "8d09a5256f1008a74755f65795c665dbffed40cbb835e66e7b67cd53521d68ce" /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 2026-04-25 17:33.09: Job failed: Failed: Build failed