2026-04-16 16:40.19: New job: test mirage/mirage-flow https://github.com/mirage/mirage-flow.git#refs/heads/main (c0efad0f73f95daba1736fb8631708da41ef5f3f) (linux-x86_64:ubuntu-24.04-5.4_opam-2.5) Base: ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b Opam project build To reproduce locally: git clone --recursive "https://github.com/mirage/mirage-flow.git" -b "main" && cd "mirage-flow" && git reset --hard c0efad0f cat > Dockerfile <<'END-OF-DOCKERFILE' FROM ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b # ubuntu-24.04-5.4_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 mirage-flow.opam mirage-flow-unix.opam mirage-flow-combinators.opam ./ RUN opam pin add -yn mirage-flow.dev './' && \ opam pin add -yn mirage-flow-unix.dev './' && \ opam pin add -yn mirage-flow-combinators.dev './' RUN echo '(lang dune 3.0)' > './dune-project' ENV DEPS="alcotest.1.9.1 astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 dune.3.22.2 dune-configurator.3.22.2 fmt.0.11.0 logs.0.10.0 lwt.6.1.1 mirage-mtime.5.2.0 mtime.2.1.0 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 re.1.14.0 stdlib-shims.0.3.0 topkg.1.1.1 uutf.1.0.4" ENV CI="true" ENV OCAMLCI="true" RUN opam update --depexts && opam install --cli=2.5 --depext-only -y mirage-flow.dev mirage-flow-unix.dev mirage-flow-combinators.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 2026-04-16 16:40.19: Using cache hint "mirage/mirage-flow-ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b-ubuntu-24.04-5.4_opam-2.5-8f5f19810b5b2ccbc2bbb82bfd849d29" 2026-04-16 16:40.19: Using OBuilder spec: ((from ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b) (comment ubuntu-24.04-5.4_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 mirage-flow.opam mirage-flow-unix.opam mirage-flow-combinators.opam) (dst ./)) (run (network host) (shell "opam pin add -yn mirage-flow.dev './' && \ \nopam pin add -yn mirage-flow-unix.dev './' && \ \nopam pin add -yn mirage-flow-combinators.dev './'")) (run (shell "echo '(lang dune 3.0)' > './dune-project'")) (env DEPS "alcotest.1.9.1 astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 dune.3.22.2 dune-configurator.3.22.2 fmt.0.11.0 logs.0.10.0 lwt.6.1.1 mirage-mtime.5.2.0 mtime.2.1.0 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 re.1.14.0 stdlib-shims.0.3.0 topkg.1.1.1 uutf.1.0.4") (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 mirage-flow.dev mirage-flow-unix.dev mirage-flow-combinators.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")) ) 2026-04-16 16:40.19: Waiting for resource in pool OCluster 2026-04-16 20:45.36: Waiting for worker… 2026-04-16 20:51.45: Got resource from pool OCluster Building on phoebe.caelum.ci.dev All commits already cached HEAD is now at c0efad0 Merge pull request #53 from hannesm/variants (from ocaml/opam:ubuntu-24.04-ocaml-5.4@sha256:52aa6935df4f331cf0908e036760b43fd20e0b811bc548c57e893089dbb9cc5b) 2026-04-16 20:51.46 ---> using "a06438aa566b1a049d3c7f3592a97d1d542968d81a3b125c496e6979e82c3753" from cache /: (comment ubuntu-24.04-5.4_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")) 2026-04-16 20:51.46 ---> using "c2b2360ef99f72899407b49dd086bb8647a07219c731395851adaf9da76ebc22" 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. Continue? [Y/n] y Format upgrade done. 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. <><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><> [default] Initialised 2026-04-16 20:51.46 ---> using "b5f92c54ac9e0bb36cf513f47b75a50818a7b9cd0b304784316918bc86e321e8" from cache /src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version")) Linux 6.8.0-107-generic The OCaml toplevel, version 5.4.1 2.5.0 2026-04-16 20:51.46 ---> using "6dcd95a2cd00bae4736d988819170a2206558fe7fede2c0ce0afe161d3bc3ff5" from cache /src: (workdir /src) /src: (run (shell "sudo chown opam /src")) 2026-04-16 20:51.46 ---> using "622547fce7a62120860246a1c49c10aaf61fb8918ad64525eab71906d89383a5" 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 42844088d7..0b0acbee05 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 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) 2026-04-16 20:51.46 ---> using "b8e03f12de4f6dee78d1b501dc2279139425d50ea8e88f04522203a320596cf2" from cache /src: (copy (src mirage-flow.opam mirage-flow-unix.opam mirage-flow-combinators.opam) (dst ./)) 2026-04-16 20:51.47 ---> saved as "88a00af21184540cb5701088b5b852a09fb44d7d9ef3f8c07855b064c2480752" /src: (run (network host) (shell "opam pin add -yn mirage-flow.dev './' && \ \nopam pin add -yn mirage-flow-unix.dev './' && \ \nopam pin add -yn mirage-flow-combinators.dev './'")) [mirage-flow.dev] synchronised (file:///src) mirage-flow is now pinned to file:///src (version dev) [mirage-flow-unix.dev] synchronised (file:///src) mirage-flow-unix is now pinned to file:///src (version dev) [mirage-flow-combinators.dev] synchronised (file:///src) mirage-flow-combinators is now pinned to file:///src (version dev) 2026-04-16 20:51.59 ---> saved as "d09dd5a2fbe075d2aa825c082ea2dbab0efb4ea4b9559f6c9db5adb38c1c01ee" /src: (run (shell "echo '(lang dune 3.0)' > './dune-project'")) 2026-04-16 20:51.59 ---> saved as "ea9221ec1f6f8b1c407ec1f82b58ebeb4ef1ccf8a8ef0765e93e0863a18b53dc" /src: (env DEPS "alcotest.1.9.1 astring.0.8.5 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cmdliner.2.1.0 cppo.1.8.0 csexp.1.5.2 cstruct.6.2.0 dune.3.22.2 dune-configurator.3.22.2 fmt.0.11.0 logs.0.10.0 lwt.6.1.1 mirage-mtime.5.2.0 mtime.2.1.0 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 re.1.14.0 stdlib-shims.0.3.0 topkg.1.1.1 uutf.1.0.4") /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 mirage-flow.dev mirage-flow-unix.dev mirage-flow-combinators.dev $DEPS")) + /usr/bin/sudo "apt-get" "update" - Get:1 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB] - Get:2 http://security.ubuntu.com/ubuntu noble-security/restricted amd64 Packages [3581 kB] - Hit:3 http://archive.ubuntu.com/ubuntu noble InRelease - Get:4 http://security.ubuntu.com/ubuntu noble-security/universe amd64 Packages [1507 kB] - Get:5 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages [2025 kB] - Get:6 http://archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB] - Get:7 http://archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB] - Get:8 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages [2402 kB] - Get:9 http://archive.ubuntu.com/ubuntu noble-updates/restricted amd64 Packages [3752 kB] - Get:10 http://archive.ubuntu.com/ubuntu noble-updates/multiverse amd64 Packages [38.5 kB] - Get:11 http://archive.ubuntu.com/ubuntu noble-updates/universe amd64 Packages [2156 kB] - Get:12 http://archive.ubuntu.com/ubuntu noble-backports/universe amd64 Packages [36.1 kB] - Fetched 15.9 MB in 5s (2963 kB/s) - Reading package lists... - <><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><> [mirage-flow.dev] synchronised (file:///src) [mirage-flow-combinators.dev] synchronised (file:///src) [mirage-flow-unix.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). # To update the current shell environment, run: eval $(opam env) 2026-04-16 20:52.30 ---> saved as "69636bb0c0edb42209e1728947ed971b1c167ffd668611eaea884a6d25a3a4dd" /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 22 packages - install alcotest 1.9.1 - install astring 0.8.5 - install base-bytes base - install cmdliner 2.1.0 - install cppo 1.8.0 - install csexp 1.5.2 - install cstruct 6.2.0 - install dune 3.22.2 - install dune-configurator 3.22.2 - install fmt 0.11.0 - install logs 0.10.0 - install lwt 6.1.1 - install mirage-mtime 5.2.0 - install mtime 2.1.0 - install ocaml-syntax-shims 1.0.0 - install ocamlbuild 0.16.1 - install ocamlfind 1.9.8 - install ocplib-endian 1.2 - install re 1.14.0 - install stdlib-shims 0.3.0 - install topkg 1.1.1 - install uutf 1.0.4 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved alcotest.1.9.1 (cached) -> retrieved astring.0.8.5 (cached) -> retrieved cmdliner.2.1.0 (cached) -> retrieved cppo.1.8.0 (cached) -> retrieved csexp.1.5.2 (cached) -> retrieved cstruct.6.2.0 (cached) -> retrieved fmt.0.11.0 (cached) -> retrieved logs.0.10.0 (cached) -> retrieved mirage-mtime.5.2.0 (cached) -> retrieved lwt.6.1.1 (cached) -> retrieved mtime.2.1.0 (cached) -> retrieved ocaml-syntax-shims.1.0.0 (cached) -> retrieved ocamlbuild.0.16.1 (cached) -> retrieved ocamlfind.1.9.8 (cached) -> retrieved ocplib-endian.1.2 (cached) -> retrieved re.1.14.0 (cached) -> retrieved stdlib-shims.0.3.0 (cached) -> retrieved uutf.1.0.4 (cached) -> retrieved topkg.1.1.1 (cached) -> retrieved dune.3.22.2, dune-configurator.3.22.2 (cached) -> installed cmdliner.2.1.0 -> installed ocamlbuild.0.16.1 -> installed ocamlfind.1.9.8 -> installed base-bytes.base -> installed topkg.1.1.1 -> installed uutf.1.0.4 -> installed fmt.0.11.0 -> installed mtime.2.1.0 -> installed astring.0.8.5 -> installed dune.3.22.2 -> installed mirage-mtime.5.2.0 -> installed csexp.1.5.2 -> installed cstruct.6.2.0 -> installed stdlib-shims.0.3.0 -> installed ocaml-syntax-shims.1.0.0 -> installed cppo.1.8.0 -> installed re.1.14.0 -> installed ocplib-endian.1.2 -> installed dune-configurator.3.22.2 -> installed alcotest.1.9.1 -> installed lwt.6.1.1 -> installed logs.0.10.0 Done. # To update the current shell environment, run: eval $(opam env) 2026-04-16 20:56.11 ---> saved as "ee602ef3436928d9d29f2e166af76377b61a290a1e269f44a867a04f23c1ed7d" /src: (copy (src .) (dst /src)) 2026-04-16 20:56.11 ---> saved as "f3573a62da7899a3b08b2bd0dcee37dcd29a151bed1410901f52842f4e3c133f" /src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build")) (cd _build/default/test && ./test.exe) Testing `mirage-flow'. This run has ID `HJIYZ8DQ'. [OK] string 0 input. [OK] string 1 output. [OK] strings 0 input. [OK] strings 1 output. [OK] cstruct 0 input. [OK] cstruct 1 output. [OK] cstructs 0 input. [OK] cstructs 1 output. [OK] lwt-io 0 input. [OK] lwt-io 1 output. Full test results in `/src/_build/default/test/_build/_tests/mirage-flow'. Test Successful in 0.002s. 10 tests run. 2026-04-16 20:56.15 ---> saved as "5f30106cbd1d79a1bef80c52303de8048223c4094b771a4f7aca8df1249348a3" Job succeeded 2026-04-16 20:56.15: Job succeeded