2026-04-13 10:13.57: New job: test mirage/mirage-flow https://github.com/mirage/mirage-flow.git#refs/heads/main (c0efad0f73f95daba1736fb8631708da41ef5f3f) (linux-x86_64:(lower-bound))Base: ocaml/opam:debian-13-ocaml-4.08@sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74cOpam project buildTo reproduce locally:git clone --recursive "https://github.com/mirage/mirage-flow.git" -b "main" && cd "mirage-flow" && git reset --hard c0efad0fcat > Dockerfile <<'END-OF-DOCKERFILE'FROM ocaml/opam:debian-13-ocaml-4.08@sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74c# debian-13-4.08_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 31462e7d24da1419f9eb9099a0b60ea507d91ef6 || git fetch origin master) && git reset -q --hard 31462e7d24da1419f9eb9099a0b60ea507d91ef6 && git log --no-decorate -n1 --oneline && opam update -uCOPY --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.1.0.1 astring.0.8.3 base-bigarray.base base-bytes.base base-threads.base base-unix.base bigarray-compat.1.0.0 cmdliner.1.0.4 conf-m4.1 cppo.1.6.1 cstruct.6.0.0 dune.2.9.3 fmt.0.8.8 jbuilder.1.0+beta20.1 logs.0.7.0 lwt.4.2.0 mirage-mtime.5.0.0 mmap.1.0.2 mtime.2.1.0 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-config.1 ocamlbuild.0.14.0 ocamlfind.1.8.0 re.1.7.2 result.1.5 seq.0.3 stdlib-shims.0.1.0 topkg.1.0.8 uuidm.0.9.7"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 $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . /srcRUN opam exec -- dune build @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-04-13 10:13.57: Using cache hint "mirage/mirage-flow-ocaml/opam:debian-13-ocaml-4.08@sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74c-debian-13-4.08_opam-2.5-da222b3e7aa65d22041f4cb7b836513b"2026-04-13 10:13.57: Using OBuilder spec:((from ocaml/opam:debian-13-ocaml-4.08@sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74c)(comment debian-13-4.08_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 31462e7d24da1419f9eb9099a0b60ea507d91ef6 || git fetch origin master) && git reset -q --hard 31462e7d24da1419f9eb9099a0b60ea507d91ef6 && 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.1.0.1 astring.0.8.3 base-bigarray.base base-bytes.base base-threads.base base-unix.base bigarray-compat.1.0.0 cmdliner.1.0.4 conf-m4.1 cppo.1.6.1 cstruct.6.0.0 dune.2.9.3 fmt.0.8.8 jbuilder.1.0+beta20.1 logs.0.7.0 lwt.4.2.0 mirage-mtime.5.0.0 mmap.1.0.2 mtime.2.1.0 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-config.1 ocamlbuild.0.14.0 ocamlfind.1.8.0 re.1.7.2 result.1.5 seq.0.3 stdlib-shims.0.1.0 topkg.1.0.8 uuidm.0.9.7")(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")))2026-04-13 10:13.57: Waiting for resource in pool OCluster2026-04-13 10:22.23: Waiting for worker…2026-04-13 10:23.44: Got resource from pool OClusterBuilding on asteria.caelum.ci.devhint: Using 'master' as the name for the initial branch. This default branch namehint: is subject to change. To configure the initial branch name to use in allhint: 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' andhint: '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/mirage-flow.git-3e98843eb6ada48dcfa03983a0caf228a3b7c1df/.git/HEAD is now at c0efad0 Merge pull request #53 from hannesm/variants(from ocaml/opam:debian-13-ocaml-4.08@sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74c)Unable to find image 'ocaml/opam:debian-13-ocaml-4.08@sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74c' locallydocker.io/ocaml/opam@sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74c: Pulling from ocaml/opama7730063fcfe: Already exists1a27fd2181de: Already existsc29591c91388: Already exists356a64daa753: Already existsac02f8f2062b: Already existsaaa2f390e4c8: Already existsb668811757f6: Already exists32fd4e1a774f: Already existsb1d486fb8fdf: Already existscf8a2024f299: Already exists8c4a5dac67c3: Already exists6adfe24d7b40: Already existsdccd6e3c0589: Already exists2ee4bcb55cd4: Already exists2dc3b58478d7: Already existsdaf15e5c44c6: Already exists564e978a8088: Already exists564e978a8088: Already exists25a652a8c456: Already existsb3bfea7bff3f: Already existsa00f2937f570: Already exists78bd1737ebff: Already exists4f4fb700ef54: Already exists4291a055edd7: Already exists3c2b2836d59a: Already exists7b3e96544a52: Already existsc72503effb14: Already existsbca08df11a10: Already exists2ab0829b2daf: Already exists1d246d4da211: Already existsa09cb4870027: Already exists2ce07b4fe7c0: Already exists6b96f28d505e: Already existsb6ad36bba9bf: Already exists56d62791a0f9: Already exists4d60780055d1: Already exists43f57a7c44cb: Already existsf21057dc4e85: Already existse0d2ca1300ed: Already exists9da2f7598f8e: Already existscb569bb28593: Already existsb32c9abef0bb: Pulling fs layerdd7da3e42740: Pulling fs layer06223904e4d3: Pulling fs layerb18a38618cf8: Pulling fs layerb18a38618cf8: Waitingdd7da3e42740: Verifying Checksumdd7da3e42740: Download completeb18a38618cf8: Download complete06223904e4d3: Verifying Checksum06223904e4d3: Download completeb32c9abef0bb: Verifying Checksumb32c9abef0bb: Download completeb32c9abef0bb: Pull completedd7da3e42740: Pull complete06223904e4d3: Pull completeb18a38618cf8: Pull completeDigest: sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74cStatus: Downloaded newer image for ocaml/opam@sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74c2026-04-13 10:52.47 ---> using "228e5ba11f0bea08c69266bb98d12a75785691261b07b0808652a307a04e14b2" from cache/: (comment debian-13-4.08_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 10:52.47 ---> using "8f0c0f8b904420153cc7d08b1a8906e69995fa51995d7a62aa1c073c7191c917" 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[NOTE] The 'jobs' option was reset, its value was 71 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=71 --globalFormat upgrade done.<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>[default] Initialised2026-04-13 10:52.47 ---> using "69a4145a27f132504ea642fc2251248a9d038744f1d63d739fb1292f7f0099ce" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-107-genericThe OCaml toplevel, version 4.08.12.5.02026-04-13 10:52.47 ---> using "5cac6514a27f9520520e43db3fcfdac4b7207f9a8134f988f146ecf9da38efcb" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-04-13 10:52.47 ---> using "b57b6278781af1681d1782728fb84867fcbbe8008d7c20a94689745acc908c11" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 31462e7d24da1419f9eb9099a0b60ea507d91ef6 || git fetch origin master) && git reset -q --hard 31462e7d24da1419f9eb9099a0b60ea507d91ef6 && git log --no-decorate -n1 --oneline && opam update -u"))31462e7d24 Merge pull request #29451 from dra27/relocatable-package<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repositoryEverything 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 10:52.47 ---> using "4b0121e01cb647f3699433049822497b1ca844f93f68fbae90bcc14c233db663" from cache/src: (copy (src mirage-flow.opam mirage-flow-unix.opam mirage-flow-combinators.opam)(dst ./))2026-04-13 10:52.47 ---> saved as "d057288b5884f857921f63384416f7fe4ef543873622fc4790a07d95813a7653"/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)2026-04-13 10:52.52 ---> saved as "f21f6d4256fbca8cba68196761c1c12ee657996801f51a646dbbafd472cd0d0c"/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-04-13 10:52.52 ---> saved as "6e3dc36cdbc5712144fc1af3a8a96049caf3683c4855d5f6cd51df36e100f074"/src: (env DEPS "alcotest.1.0.1 astring.0.8.3 base-bigarray.base base-bytes.base base-threads.base base-unix.base bigarray-compat.1.0.0 cmdliner.1.0.4 conf-m4.1 cppo.1.6.1 cstruct.6.0.0 dune.2.9.3 fmt.0.8.8 jbuilder.1.0+beta20.1 logs.0.7.0 lwt.4.2.0 mirage-mtime.5.0.0 mmap.1.0.2 mtime.2.1.0 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-config.1 ocamlbuild.0.14.0 ocamlfind.1.8.0 re.1.7.2 result.1.5 seq.0.3 stdlib-shims.0.1.0 topkg.1.0.8 uuidm.0.9.7")/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"- 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 (1938 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-config is already installed (current version is 1).[NOTE] Package ocaml-base-compiler is already installed (current version is 4.08.1).[NOTE] Package ocaml is already installed (current version is 4.08.1).[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-bigarray is already installed (current version is base).The following system packages will first need to be installed:m4<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "m4"- Selecting previously unselected package m4.- (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 .../archives/m4_1.4.19-8_amd64.deb ...- Unpacking m4 (1.4.19-8) ...- Setting up m4 (1.4.19-8) ...# To update the current shell environment, run: eval $(opam env)2026-04-13 10:53.04 ---> saved as "fd86da01575633d502fe40d529b6261b464bfd811566a9d9e88fbdcc6c8e5485"/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "opam install $DEPS"))[NOTE] Package ocaml-config is already installed (current version is 1).[NOTE] Package ocaml-base-compiler is already installed (current version is 4.08.1).[NOTE] Package ocaml is already installed (current version is 4.08.1).[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-bigarray is already installed (current version is base).The following actions will be performed:=== install 24 packages- install alcotest 1.0.1- install astring 0.8.3- install base-bytes base- install bigarray-compat 1.0.0- install cmdliner 1.0.4- install conf-m4 1- install cppo 1.6.1- install cstruct 6.0.0- install dune 2.9.3- install fmt 0.8.8- install jbuilder 1.0+beta20.1 (deprecated)- install logs 0.7.0- install lwt 4.2.0- install mirage-mtime 5.0.0- install mmap 1.0.2- install mtime 2.1.0- install ocamlbuild 0.14.0- install ocamlfind 1.8.0- install re 1.7.2- install result 1.5- install seq 0.3- install stdlib-shims 0.1.0- install topkg 1.0.8- install uuidm 0.9.7<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved alcotest.1.0.1 (cached)-> retrieved astring.0.8.3 (cached)-> retrieved bigarray-compat.1.0.0 (cached)-> installed conf-m4.1-> retrieved cmdliner.1.0.4 (cached)-> retrieved cppo.1.6.1 (cached)-> retrieved cstruct.6.0.0 (cached)-> retrieved fmt.0.8.8 (cached)-> retrieved logs.0.7.0 (cached)-> retrieved lwt.4.2.0 (cached)-> retrieved mirage-mtime.5.0.0 (cached)-> retrieved jbuilder.1.0+beta20.1 (cached)-> retrieved dune.2.9.3 (cached)-> retrieved mmap.1.0.2 (cached)-> retrieved mtime.2.1.0 (cached)-> retrieved ocamlbuild.0.14.0 (cached)-> retrieved ocamlfind.1.8.0 (cached)-> retrieved re.1.7.2 (cached)-> retrieved result.1.5 (cached)-> retrieved seq.0.3 (cached)-> retrieved stdlib-shims.0.1.0 (cached)-> retrieved uuidm.0.9.7 (cached)-> retrieved topkg.1.0.8 (cached)-> installed cmdliner.1.0.4-> installed ocamlfind.1.8.0-> installed base-bytes.base-> installed ocamlbuild.0.14.0-> installed jbuilder.1.0+beta20.1-> installed cppo.1.6.1-> installed re.1.7.2-> installed dune.2.9.3-> installed topkg.1.0.8-> installed mmap.1.0.2-> installed stdlib-shims.0.1.0-> installed bigarray-compat.1.0.0-> installed result.1.5-> installed seq.0.3-> installed cstruct.6.0.0-> installed uuidm.0.9.7-> installed mtime.2.1.0-> installed mirage-mtime.5.0.0-> installed astring.0.8.3-> installed fmt.0.8.8-> installed alcotest.1.0.1-> installed lwt.4.2.0-> installed logs.0.7.0Done.<><> jbuilder.1.0+beta20.1 installed successfully <><><><><><><><><><><><><><><>=> Note: This package is deprecated.# To update the current shell environment, run: eval $(opam env)2026-04-13 10:53.27 ---> saved as "1f21c0e2ba848d7f718ec139a3f63d720a588b21498652fbef2e0fd51396c620"/src: (copy (src .) (dst /src))2026-04-13 10:53.27 ---> saved as "d6e23e09efe5a1e38e83ee9c887fc58067c5c26e9f9c99216581bd87d3e0fabd"/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))File "/home/opam/.opam/4.08/lib/re/re.dune", line 1, characters 0-0:Warning: .dune files are ignored since 2.0. Reinstall the library with dune>= 2.0 to get rid of this warning and enable support for the subsystem thislibrary provides.File "/home/opam/.opam/4.08/lib/re/emacs/re.emacs.dune", line 1, characters 0-0:Warning: .dune files are ignored since 2.0. Reinstall the library with dune>= 2.0 to get rid of this warning and enable support for the subsystem thislibrary provides.File "/home/opam/.opam/4.08/lib/re/glob/re.glob.dune", line 1, characters 0-0:Warning: .dune files are ignored since 2.0. Reinstall the library with dune>= 2.0 to get rid of this warning and enable support for the subsystem thislibrary provides.File "/home/opam/.opam/4.08/lib/re/pcre/re.pcre.dune", line 1, characters 0-0:Warning: .dune files are ignored since 2.0. Reinstall the library with dune>= 2.0 to get rid of this warning and enable support for the subsystem thislibrary provides.File "/home/opam/.opam/4.08/lib/re/perl/re.perl.dune", line 1, characters 0-0:Warning: .dune files are ignored since 2.0. Reinstall the library with dune>= 2.0 to get rid of this warning and enable support for the subsystem thislibrary provides.File "/home/opam/.opam/4.08/lib/re/posix/re.posix.dune", line 1, characters 0-0:Warning: .dune files are ignored since 2.0. Reinstall the library with dune>= 2.0 to get rid of this warning and enable support for the subsystem thislibrary provides.File "/home/opam/.opam/4.08/lib/re/str/re.str.dune", line 1, characters 0-0:Warning: .dune files are ignored since 2.0. Reinstall the library with dune>= 2.0 to get rid of this warning and enable support for the subsystem thislibrary provides.test alias test/runtestTesting mirage-flow.This run has ID `4742A638-5DD7-4677-B7B1-A279EE471855`.... string 0 input. [OK] string 0 input.... string 1 output. [OK] string 1 output.... strings 0 input. [OK] strings 0 input.... strings 1 output. [OK] strings 1 output.... cstruct 0 input. [OK] cstruct 0 input.... cstruct 1 output. [OK] cstruct 1 output.... cstructs 0 input. [OK] cstructs 0 input.... cstructs 1 output. [OK] cstructs 1 output.... lwt-io 0 input. [OK] lwt-io 0 input.... lwt-io 1 output. [OK] lwt-io 1 output.The full test results are available in `/src/_build/default/test/_build/_tests/4742A638-5DD7-4677-B7B1-A279EE471855`.Test Successful in 0.000s. 10 tests run.2026-04-13 10:53.28 ---> saved as "2386bc3bbc7b35122e07ec226a73e2e707ede2fcba522ece2e7beb6ba341ec2c"Job succeeded2026-04-13 10:53.28: Job succeeded