2026-01-24 22:45.52: New job: test mirage/ocaml-tar https://github.com/mirage/ocaml-tar.git#refs/heads/main (bbb19985822cae634319f9eb1ff16f236e97d206) (macos-x86_64:macos-homebrew-4.14_opam-2.5)Base: macos-homebrew-ocaml-4.14Opam project buildTo reproduce locally:git clone --recursive "https://github.com/mirage/ocaml-tar.git" -b "main" && cd "ocaml-tar" && git reset --hard bbb19985cat > Dockerfile <<'END-OF-DOCKERFILE'FROM macos-homebrew-ocaml-4.14# macos-homebrew-4.14_opam-2.5USER 1000:1000ENV CLICOLOR_FORCE="1"ENV OPAMCOLOR="always"RUN ln -f ~/local/bin/opam-2.5 ~/local/bin/opamRUN opam init --reinit -niRUN uname -rs && opam exec -- ocaml -version && opam --versionRUN cd ~/opam-repository && (git cat-file -e 873cb18c37b308713d11ad3894c4bb78d73fb3e7 || git fetch origin master) && git reset -q --hard 873cb18c37b308713d11ad3894c4bb78d73fb3e7 && git log --no-decorate -n1 --oneline && opam update -uCOPY --chown=1000:1000 tar.opam tar-eio.opam ./src/./RUN opam pin add -yn tar.dev './src/./' && \opam pin add -yn tar-eio.dev './src/./'RUN echo '(lang dune 3.0)' > './src/./dune-project'ENV DEPS="base-bigarray.base base-threads.base base-unix.base checkseum.0.5.2 cmdliner.2.1.0 csexp.1.5.2 decompress.1.5.3 dune.3.21.0 dune-configurator.3.21.0 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 optint.0.3.0"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.5 --depext-only -y tar.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . ./srcRUN cd ./src && opam exec -- dune build --only-packages=tar @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-01-24 22:45.52: Using cache hint "mirage/ocaml-tar-macos-homebrew-ocaml-4.14-macos-homebrew-4.14_opam-2.5-bd538eed072c29d880783792e9cf5e0b"2026-01-24 22:45.52: Using OBuilder spec:((from macos-homebrew-ocaml-4.14)(comment macos-homebrew-4.14_opam-2.5)(user (uid 1000) (gid 1000))(env CLICOLOR_FORCE 1)(env OPAMCOLOR always)(run (shell "ln -f ~/local/bin/opam-2.5 ~/local/bin/opam"))(run (shell "opam init --reinit -ni"))(run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))(run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 873cb18c37b308713d11ad3894c4bb78d73fb3e7 || git fetch origin master) && git reset -q --hard 873cb18c37b308713d11ad3894c4bb78d73fb3e7 && git log --no-decorate -n1 --oneline && opam update -u"))(copy (src tar.opam tar-eio.opam) (dst ./src/./))(run (network host)(shell "opam pin add -yn tar.dev './src/./' && \\nopam pin add -yn tar-eio.dev './src/./'"))(run (network host)(shell "echo '(lang dune 3.0)' > './src/./dune-project'"))(env DEPS "base-bigarray.base base-threads.base base-unix.base checkseum.0.5.2 cmdliner.2.1.0 csexp.1.5.2 decompress.1.5.3 dune.3.21.0 dune-configurator.3.21.0 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 optint.0.3.0")(env CI true)(env OCAMLCI true)(run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(network host)(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y tar.dev $DEPS"))(run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(network host)(shell "opam install $DEPS"))(copy (src .) (dst ./src))(run (shell "cd ./src && opam exec -- dune build --only-packages=tar @install @check @runtest && rm -rf _build")))2026-01-24 22:45.52: Waiting for resource in pool OCluster2026-01-24 22:45.52: Waiting for worker…2026-01-24 22:45.52: Got resource from pool OClusterBuilding on i7-worker-02HEAD is now at cde9c48 Merge pull request #175 from mirage/open-errorHEAD is now at bbb1998 Apply formatting and sync changes(from macos-homebrew-ocaml-4.14)2026-01-24 22:45.54 ---> using "0c60f117aee57abea8364cb033d47bb1d63ff0f68e5ee97378e032498e8442af" from cache/: (comment macos-homebrew-4.14_opam-2.5)/: (user (uid 1000) (gid 1000))/: (env CLICOLOR_FORCE 1)/: (env OPAMCOLOR always)/: (run (shell "ln -f ~/local/bin/opam-2.5 ~/local/bin/opam"))2026-01-24 22:45.55 ---> using "75b1629629d7f21c50a7e1e39b2ef83e2edb8ace81aab34254c0c8782b814749" from cache/: (run (shell "opam init --reinit -ni"))No configuration file found, using 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 /Users/mac1000/.opam from version 2.1 to version 2.2, which can't be reverted.You may want to back it up before going further.Continue? [Y/n] y[NOTE] The 'jobs' option was reset, its value was 1 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:opam option jobs=1 --globalFormat upgrade done.<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>[default] no changes from git+file:///Users/mac1000/opam-repository2026-01-24 22:45.55 ---> using "a61e945ab7671a6fff400f946e3fe88df4d67a783ea1f56fa59dc21595ef1b19" from cache/: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Darwin 24.5.0The OCaml toplevel, version 4.14.22.5.02026-01-24 22:45.55 ---> using "11a9923a4c4f0ab256d15330129e4c4938459d2e6239eb4f7bdf0f2620300e09" from cache/: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 873cb18c37b308713d11ad3894c4bb78d73fb3e7 || git fetch origin master) && git reset -q --hard 873cb18c37b308713d11ad3894c4bb78d73fb3e7 && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEAD4c9d80b731..873cb18c37 master -> origin/master873cb18c37 Merge pull request #29216 from shonfeder/release-dune-3.21.0<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///Users/mac1000/opam-repositoryEverything as up-to-date as possibleThe following packages are not being upgraded because the new versions conflict with other installed packages:- ocaml.5.4.0- ocaml-config.3However, you may "opam upgrade" these packages explicitly at these versions (e.g. "opam upgrade ocaml.5.4.0"), which will ask permission to downgrade or uninstall the conflicting packages.Nothing to do.# To update the current shell environment, run: eval $(opam env)2026-01-24 22:45.56 ---> using "9b174de0df1fe4f719027b2d8af70cb0e7a030ac562162893d628018ce2218f6" from cache/: (copy (src tar.opam tar-eio.opam) (dst ./src/./))2026-01-24 22:45.57 ---> saved as "562a5325f3fc194dc178fb413c563225d8a3998c9b7ac34f7bc2149ebdd88385"/: (run (network host)(shell "opam pin add -yn tar.dev './src/./' && \\nopam pin add -yn tar-eio.dev './src/./'"))[tar.dev] synchronised (file:///Users/mac1000/src)tar is now pinned to file:///Users/mac1000/src (version dev)[tar-eio.dev] synchronised (file:///Users/mac1000/src)tar-eio is now pinned to file:///Users/mac1000/src (version dev)2026-01-24 22:46.28 ---> saved as "5cbeb3980f8a6a6f5b20db644e1085821e60a674275f76e74c55c75eb8badaa5"/: (run (network host)(shell "echo '(lang dune 3.0)' > './src/./dune-project'"))2026-01-24 22:46.29 ---> saved as "c80ce2fc00b23f3254a48206820d9e4f82ea2cf9c7104e1c0d9075eb077da772"/: (env DEPS "base-bigarray.base base-threads.base base-unix.base checkseum.0.5.2 cmdliner.2.1.0 csexp.1.5.2 decompress.1.5.3 dune.3.21.0 dune-configurator.3.21.0 ocaml.4.14.2 ocaml-base-compiler.4.14.2 ocaml-config.2 ocaml-options-vanilla.1 optint.0.3.0")/: (env CI true)/: (env OCAMLCI true)/: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(network host)(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y tar.dev $DEPS"))+ /usr/local/bin/brew "update"- ==> Updating Homebrew...- ==> Downloading https://ghcr.io/v2/homebrew/core/portable-ruby/blobs/sha256:80c194381e990a4967a1ae44b8242b688e6a17ab590865a38671137677411469- Already downloaded: /Users/mac1000/Library/Caches/Homebrew/portable-ruby-3.4.8.catalina.bottle.tar.gz- ==> Pouring portable-ruby-3.4.8.catalina.bottle.tar.gz- ==> Homebrew collects anonymous analytics.- Read the analytics documentation (and how to opt-out) here:- https://docs.brew.sh/Analytics- No analytics have been recorded yet (nor will be during this `brew` run).-- ==> Homebrew is run entirely by unpaid volunteers. Please consider donating:- https://github.com/Homebrew/brew#donations-- Already up-to-date.<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[tar.dev] synchronised (file:///Users/mac1000/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).# To update the current shell environment, run: eval $(opam env)2026-01-24 22:47.21 ---> saved as "d40cc2fd12cc2c264e9b9c14b7eaeb7c072dc8ae2b50c56cdc6d297c14228e47"/: (run (cache (opam-archives (target /Users/mac1000/.opam/download-cache)) (homebrew (target /Users/mac1000/Library/Caches/Homebrew)))(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 7 packages- install checkseum 0.5.2- install cmdliner 2.1.0- install csexp 1.5.2- install decompress 1.5.3- install dune 3.21.0- install dune-configurator 3.21.0- install optint 0.3.0<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved csexp.1.5.2 (cached)-> retrieved cmdliner.2.1.0 (cached)-> retrieved checkseum.0.5.2 (cached)-> retrieved optint.0.3.0 (cached)-> retrieved decompress.1.5.3 (cached)-> retrieved dune.3.21.0, dune-configurator.3.21.0 (cached)-> installed cmdliner.2.1.0-> installed dune.3.21.0-> installed csexp.1.5.2-> installed optint.0.3.0-> installed dune-configurator.3.21.0-> installed checkseum.0.5.2-> installed decompress.1.5.3Done.# To update the current shell environment, run: eval $(opam env)2026-01-24 22:48.32 ---> saved as "4138d05b823ba6016bff90b8786b11730c6a7812c8a8d09e7e459f927b9777f4"/: (copy (src .) (dst ./src))2026-01-24 22:48.34 ---> saved as "d3057d0e8130ce738ed5d608403f66771206dd675af06c8c5ebd2ebc8a9f503f"/: (run (shell "cd ./src && opam exec -- dune build --only-packages=tar @install @check @runtest && rm -rf _build"))(cd _build/default && /Users/mac1000/.opam/4.14.2/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 lib/.tar.objs/byte -intf-suffix .ml -no-alias-deps -opaque -o lib/.tar.objs/byte/tar.cmo -c -impl lib/tar.ml)File "lib/tar.ml", line 30, characters 5-18:30 | open Result.Syntax^^^^^^^^^^^^^Error: Unbound module Result.Syntax(cd _build/default && /Users/mac1000/.opam/4.14.2/bin/ocamlopt.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 -I lib/.tar.objs/byte -I lib/.tar.objs/native -intf-suffix .ml -no-alias-deps -opaque -o lib/.tar.objs/native/tar.cmx -c -impl lib/tar.ml)File "lib/tar.ml", line 30, characters 5-18:30 | open Result.Syntax^^^^^^^^^^^^^Error: Unbound module Result.Syntax"/usr/bin/env" "bash" "-c" "cd ./src && opam exec -- dune build --only-packages=tar @install @check @runtest && rm -rf _build" failed with exit status 12026-01-24 22:48.40: Job failed: Failed: Build failed