2026-04-19 17:58.34: New job: test mirage/ocaml-fat https://github.com/mirage/ocaml-fat.git#refs/heads/main (75f00421ec577cb0f3380ee9fe94f15d13069fda) (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/ocaml-fat.git" -b "main" && cd "ocaml-fat" && git reset --hard 75f00421cat > 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 4ae3c774e4a07972d8dc71ead3a8294779f6dada || git fetch origin master) && git reset -q --hard 4ae3c774e4a07972d8dc71ead3a8294779f6dada && git log --no-decorate -n1 --oneline && opam update -uCOPY --chown=1000:1000 fat-filesystem.opam ./RUN opam pin add -yn fat-filesystem.dev './'RUN echo '(lang dune 3.0)' > './dune-project'ENV DEPS="alcotest.1.0.1 astring.0.8.3 base.v0.12.2 base-bigarray.base base-bytes.base base-threads.base base-unix.base bigarray-compat.1.0.0 cmdliner.1.3.0 conf-linux-libc-dev.0 conf-m4.1 conf-pkg-config.1.0 cppo.1.6.1 cstruct.6.0.0 cstruct-lwt.3.7.0 dune.2.6.1 dune-configurator.2.5.1 dune-private-libs.2.5.1 fmt.0.8.8 io-page.2.4.0 jbuilder.1.0+beta20.1 logs.0.7.0 lwt.5.4.2 mirage-block.3.0.2 mirage-block-combinators.3.0.2 mirage-block-unix.2.14.2 mirage-kv.4.0.0 mmap.1.1.0 num.1.5 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocaml-migrate-parsetree.2.0.0 ocamlbuild.0.14.0 ocamlfind.1.8.0 ocplib-endian.1.0 parsexp.v0.12.0 ppx_cstruct.6.0.0 ppx_derivers.1.0 ppxlib.0.17.0 re.1.9.0 result.1.5 rresult.0.6.0 seq.0.3 sexplib.v0.12.0 sexplib0.v0.12.0 stdlib-shims.0.1.0 stringext.1.4.0 topkg.1.0.8 uri.3.0.0 uuidm.0.9.7"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.5 --depext-only -y fat-filesystem.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . /srcRUN opam exec -- dune build @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2026-04-19 17:58.34: Using cache hint "mirage/ocaml-fat-ocaml/opam:debian-13-ocaml-4.08@sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74c-debian-13-4.08_opam-2.5-b706ab847ad869d805a13aa398b39ca3"2026-04-19 17:58.34: 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 4ae3c774e4a07972d8dc71ead3a8294779f6dada || git fetch origin master) && git reset -q --hard 4ae3c774e4a07972d8dc71ead3a8294779f6dada && git log --no-decorate -n1 --oneline && opam update -u"))(copy (src fat-filesystem.opam) (dst ./))(run (network host)(shell "opam pin add -yn fat-filesystem.dev './'"))(run (shell "echo '(lang dune 3.0)' > './dune-project'"))(env DEPS "alcotest.1.0.1 astring.0.8.3 base.v0.12.2 base-bigarray.base base-bytes.base base-threads.base base-unix.base bigarray-compat.1.0.0 cmdliner.1.3.0 conf-linux-libc-dev.0 conf-m4.1 conf-pkg-config.1.0 cppo.1.6.1 cstruct.6.0.0 cstruct-lwt.3.7.0 dune.2.6.1 dune-configurator.2.5.1 dune-private-libs.2.5.1 fmt.0.8.8 io-page.2.4.0 jbuilder.1.0+beta20.1 logs.0.7.0 lwt.5.4.2 mirage-block.3.0.2 mirage-block-combinators.3.0.2 mirage-block-unix.2.14.2 mirage-kv.4.0.0 mmap.1.1.0 num.1.5 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocaml-migrate-parsetree.2.0.0 ocamlbuild.0.14.0 ocamlfind.1.8.0 ocplib-endian.1.0 parsexp.v0.12.0 ppx_cstruct.6.0.0 ppx_derivers.1.0 ppxlib.0.17.0 re.1.9.0 result.1.5 rresult.0.6.0 seq.0.3 sexplib.v0.12.0 sexplib0.v0.12.0 stdlib-shims.0.1.0 stringext.1.4.0 topkg.1.0.8 uri.3.0.0 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 fat-filesystem.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")))2026-04-19 17:58.34: Waiting for resource in pool OCluster2026-04-19 17:58.34: Waiting for worker…2026-04-19 17:58.34: Got resource from pool OClusterBuilding on asteria.caelum.ci.devAll commits already cachedHEAD is now at 75f0042 Merge pull request #95 from hannesm/add-maint(from ocaml/opam:debian-13-ocaml-4.08@sha256:3cbf0e68d3a718b80b9a2ab282b68bb62badcbc072fa014a5564516c5f70e74c)2026-04-19 18:04.00 ---> 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"))2026-04-19 18:04.00 ---> 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] Initialised2026-04-19 18:04.00 ---> using "69a4145a27f132504ea642fc2251248a9d038744f1d63d739fb1292f7f0099ce" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))Linux 6.8.0-107-genericThe OCaml toplevel, version 4.08.12.5.02026-04-19 18:04.00 ---> using "5cac6514a27f9520520e43db3fcfdac4b7207f9a8134f988f146ecf9da38efcb" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2026-04-19 18:04.00 ---> 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 4ae3c774e4a07972d8dc71ead3a8294779f6dada || git fetch origin master) && git reset -q --hard 4ae3c774e4a07972d8dc71ead3a8294779f6dada && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEAD42844088d7..4ae3c774e4 master -> origin/master4ae3c774e4 Merge pull request #29579 from ocaml/add-msys2-depexts<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>[default] synchronised from git+file:///home/opam/opam-repositorydefault (at git+file:///home/opam/opam-repository):[WARNING] opam is out-of-date. Please consider updating it (https://opam.ocaml.org/doc/Install.html)default (at git+file:///home/opam/opam-repository):[INFO] opam 2.5.1 includes security fixes; please consider upgrading (https://opam.ocaml.org/doc/Install.html)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)2026-04-19 18:04.00 ---> using "1cae88279ccf97f956b2244effac9c91fe42f5a352b03a778482c0d22bb32879" from cache/src: (copy (src fat-filesystem.opam) (dst ./))2026-04-19 18:04.00 ---> saved as "7baa990c6f514f302a87a0f3280786ca835dbd401b60b85bf69ebec0b195c9de"/src: (run (network host)(shell "opam pin add -yn fat-filesystem.dev './'"))[fat-filesystem.dev] synchronised (file:///src)fat-filesystem is now pinned to file:///src (version dev)2026-04-19 18:04.02 ---> saved as "11efc3a2c447f0d5afb434c0db59ccf7e27c2ddfcdafb4b5bcdc813ec3971b19"/src: (run (shell "echo '(lang dune 3.0)' > './dune-project'"))2026-04-19 18:04.02 ---> saved as "e270dffad7707e6cad07e74469aa098e1c6169ecafa73c1974e5478a220a867c"/src: (env DEPS "alcotest.1.0.1 astring.0.8.3 base.v0.12.2 base-bigarray.base base-bytes.base base-threads.base base-unix.base bigarray-compat.1.0.0 cmdliner.1.3.0 conf-linux-libc-dev.0 conf-m4.1 conf-pkg-config.1.0 cppo.1.6.1 cstruct.6.0.0 cstruct-lwt.3.7.0 dune.2.6.1 dune-configurator.2.5.1 dune-private-libs.2.5.1 fmt.0.8.8 io-page.2.4.0 jbuilder.1.0+beta20.1 logs.0.7.0 lwt.5.4.2 mirage-block.3.0.2 mirage-block-combinators.3.0.2 mirage-block-unix.2.14.2 mirage-kv.4.0.0 mmap.1.1.0 num.1.5 ocaml.4.08.1 ocaml-base-compiler.4.08.1 ocaml-compiler-libs.v0.11.0 ocaml-config.1 ocaml-migrate-parsetree.2.0.0 ocamlbuild.0.14.0 ocamlfind.1.8.0 ocplib-endian.1.0 parsexp.v0.12.0 ppx_cstruct.6.0.0 ppx_derivers.1.0 ppxlib.0.17.0 re.1.9.0 result.1.5 rresult.0.6.0 seq.0.3 sexplib.v0.12.0 sexplib0.v0.12.0 stdlib-shims.0.1.0 stringext.1.4.0 topkg.1.0.8 uri.3.0.0 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 fat-filesystem.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 [124 kB]- Fetched 215 kB in 0s (1746 kB/s)- Reading package lists...<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[fat-filesystem.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 pkg-config<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "m4" "pkg-config"- Selecting previously unselected package libpkgconf3: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 .../libpkgconf3_1.8.1-4_amd64.deb ...- Unpacking libpkgconf3:amd64 (1.8.1-4) ...- Selecting previously unselected package m4.- Preparing to unpack .../archives/m4_1.4.19-8_amd64.deb ...- Unpacking m4 (1.4.19-8) ...- Selecting previously unselected package pkgconf-bin.- Preparing to unpack .../pkgconf-bin_1.8.1-4_amd64.deb ...- Unpacking pkgconf-bin (1.8.1-4) ...- Selecting previously unselected package pkgconf:amd64.- Preparing to unpack .../pkgconf_1.8.1-4_amd64.deb ...- Unpacking pkgconf:amd64 (1.8.1-4) ...- Selecting previously unselected package pkg-config:amd64.- Preparing to unpack .../pkg-config_1.8.1-4_amd64.deb ...- Unpacking pkg-config:amd64 (1.8.1-4) ...- Setting up m4 (1.4.19-8) ...- Setting up libpkgconf3:amd64 (1.8.1-4) ...- Setting up pkgconf-bin (1.8.1-4) ...- Setting up pkgconf:amd64 (1.8.1-4) ...- Setting up pkg-config:amd64 (1.8.1-4) ...- Processing triggers for libc-bin (2.41-12+deb13u2) ...# To update the current shell environment, run: eval $(opam env)2026-04-19 18:04.13 ---> saved as "90ebc997eb9bb91ea1eaa97284e62c73e4b11807a12becf770b8baa48e1a70e1"/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 46 packages- install alcotest 1.0.1- install astring 0.8.3- install base v0.12.2- install base-bytes base- install bigarray-compat 1.0.0- install cmdliner 1.3.0- install conf-linux-libc-dev 0- install conf-m4 1- install conf-pkg-config 1.0- install cppo 1.6.1- install cstruct 6.0.0- install cstruct-lwt 3.7.0- install dune 2.6.1- install dune-configurator 2.5.1- install dune-private-libs 2.5.1- install fmt 0.8.8- install io-page 2.4.0- install jbuilder 1.0+beta20.1 (deprecated)- install logs 0.7.0- install lwt 5.4.2- install mirage-block 3.0.2- install mirage-block-combinators 3.0.2- install mirage-block-unix 2.14.2- install mirage-kv 4.0.0- install mmap 1.1.0- install num 1.5- install ocaml-compiler-libs v0.11.0- install ocaml-migrate-parsetree 2.0.0 (deprecated)- install ocamlbuild 0.14.0- install ocamlfind 1.8.0- install ocplib-endian 1.0- install parsexp v0.12.0- install ppx_cstruct 6.0.0- install ppx_derivers 1.0- install ppxlib 0.17.0- install re 1.9.0- install result 1.5- install rresult 0.6.0- install seq 0.3- install sexplib v0.12.0- install sexplib0 v0.12.0- install stdlib-shims 0.1.0- install stringext 1.4.0- install topkg 1.0.8- install uri 3.0.0- install uuidm 0.9.7<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>-> retrieved alcotest.1.0.1 (cached)-> retrieved astring.0.8.3 (cached)-> retrieved base.v0.12.2 (cached)-> retrieved bigarray-compat.1.0.0 (cached)-> retrieved cmdliner.1.3.0 (cached)-> retrieved cppo.1.6.1 (cached)-> installed conf-m4.1-> installed conf-pkg-config.1.0-> retrieved cstruct.6.0.0, ppx_cstruct.6.0.0 (cached)-> retrieved cstruct-lwt.3.7.0 (cached)-> installed conf-linux-libc-dev.0-> retrieved fmt.0.8.8 (cached)-> retrieved io-page.2.4.0 (cached)-> retrieved jbuilder.1.0+beta20.1 (cached)-> retrieved dune.2.6.1 (cached)-> retrieved dune-configurator.2.5.1, dune-private-libs.2.5.1 (cached)-> retrieved logs.0.7.0 (cached)-> retrieved lwt.5.4.2 (cached)-> retrieved mirage-block.3.0.2, mirage-block-combinators.3.0.2 (cached)-> retrieved mirage-block-unix.2.14.2 (cached)-> retrieved mirage-kv.4.0.0 (cached)-> retrieved mmap.1.1.0 (cached)-> retrieved num.1.5 (cached)-> retrieved ocaml-compiler-libs.v0.11.0 (cached)-> installed cmdliner.1.3.0-> retrieved ocaml-migrate-parsetree.2.0.0 (cached)-> retrieved ocamlbuild.0.14.0 (cached)-> retrieved ocamlfind.1.8.0 (cached)-> retrieved ocplib-endian.1.0 (cached)-> retrieved parsexp.v0.12.0 (cached)-> retrieved ppx_derivers.1.0 (cached)-> retrieved result.1.5 (cached)-> retrieved rresult.0.6.0 (cached)-> retrieved seq.0.3 (cached)-> retrieved re.1.9.0 (cached)-> retrieved sexplib.v0.12.0 (cached)-> retrieved ppxlib.0.17.0 (cached)-> retrieved sexplib0.v0.12.0 (cached)-> retrieved stdlib-shims.0.1.0 (cached)-> retrieved stringext.1.4.0 (cached)-> retrieved uuidm.0.9.7 (cached)-> retrieved topkg.1.0.8 (cached)-> retrieved uri.3.0.0 (cached)-> installed num.1.5-> installed ocamlfind.1.8.0-> installed base-bytes.base-> installed ocamlbuild.0.14.0-> installed dune.2.6.1-> installed jbuilder.1.0+beta20.1-> installed bigarray-compat.1.0.0-> installed seq.0.3-> installed ppx_derivers.1.0-> installed stdlib-shims.0.1.0-> installed mmap.1.1.0-> installed result.1.5-> installed sexplib0.v0.12.0-> installed cstruct.6.0.0-> installed cppo.1.6.1-> installed ocaml-compiler-libs.v0.11.0-> installed io-page.2.4.0-> installed re.1.9.0-> installed ocaml-migrate-parsetree.2.0.0-> installed stringext.1.4.0-> installed topkg.1.0.8-> installed dune-private-libs.2.5.1-> installed ocplib-endian.1.0-> installed astring.0.8.3-> installed dune-configurator.2.5.1-> installed fmt.0.8.8-> installed rresult.0.6.0-> installed uri.3.0.0-> installed uuidm.0.9.7-> installed alcotest.1.0.1-> installed lwt.5.4.2-> installed mirage-block.3.0.2-> installed mirage-kv.4.0.0-> installed cstruct-lwt.3.7.0-> installed logs.0.7.0-> installed mirage-block-combinators.3.0.2-> installed mirage-block-unix.2.14.2-> installed base.v0.12.2-> installed ppxlib.0.17.0-> installed parsexp.v0.12.0-> installed sexplib.v0.12.0-> installed ppx_cstruct.6.0.0Done.<><> ocaml-migrate-parsetree.2.0.0 installed successfully <><><><><><><><><><><>=> Note: This package is deprecated.<><> jbuilder.1.0+beta20.1 installed successfully <><><><><><><><><><><><><><><>=> Note: This package is deprecated.# To update the current shell environment, run: eval $(opam env)2026-04-19 18:04.46 ---> saved as "3f0d9b4d2235231c7aae5e40cfffbabf657f7f4bf73c2b7f8f6b347ed7cf12ea"/src: (copy (src .) (dst /src))2026-04-19 18:04.47 ---> saved as "f47e9dc21535ffbf3add168a2cf0d3662917fc0a9ea84d4c717c7b0b944ab6f9"/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))File "/home/opam/.opam/4.08/lib/ocaml-compiler-libs/bytecomp/ocaml-compiler-libs.bytecomp.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/ocaml-compiler-libs/common/ocaml-compiler-libs.common.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/ocaml-compiler-libs/shadow/ocaml-compiler-libs.shadow.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/ocaml-compiler-libs/toplevel/ocaml-compiler-libs.toplevel.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/ppx_derivers/ppx_derivers.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 fat.This run has ID `88ECACD2-24A4-490D-8B3A-DC0D67A46CB2`.... tests 0 parse_boot_sector. [OK] tests 0 parse_boot_sector.... tests 1 checksum. [OK] tests 1 checksum.... tests 2 root_list. [OK] tests 2 root_list.... tests 3 chains. [OK] tests 3 chains.... tests 4 create. [OK] tests 4 create.... tests 5 listdir. [OK] tests 5 listdir.... tests 6 listdir_subdir. [OK] tests 6 listdir_subdir.... tests 7 read. [OK] tests 7 read.... tests 8 destroy. [OK] tests 8 destroy.... tests 9 write to HELLO.TXT at 0 length 512. [OK] tests 9 write to HELLO.TXT at 0 length 512.... tests 10 write to HELLO.TXT at 512 length 512. [OK] tests 10 write to HELLO.TXT at 512 length 512.... tests 11 write to HELLO.TXT at 4096 length 512. [OK] tests 11 write to HELLO.TXT at 4096 length 512.... tests 12 write to HELLO.TXT at 1 length 1. [OK] tests 12 write to HELLO.TXT at 1 length 1.... tests 13 write to HELLO.TXT at 512 length 1. [OK] tests 13 write to HELLO.TXT at 512 length 1.... tests 14 write to HELLO.TXT at 256 length 512. [OK] tests 14 write to HELLO.TXT at 256 length 512.... tests 15 write to /FOO/BAR.TXT at 0 length 512. [OK] tests 15 write to /FOO/BAR.TXT at 0 length 512.... tests 16 write to /FOO/BAR.TXT at 512 length 512. [OK] tests 16 write to /FOO/BAR.TXT at 512 length 512.... tests 17 write to /FOO/BAR.TXT at 4096 length 512. [OK] tests 17 write to /FOO/BAR.TXT at 4096 length 512.... tests 18 write to /FOO/BAR.TXT at 1 length 1. [OK] tests 18 write to /FOO/BAR.TXT at 1 length 1.... tests 19 write to /FOO/BAR.TXT at 512 length 1. [OK] tests 19 write to /FOO/BAR.TXT at 512 length 1.... tests 20 write to /FOO/BAR.TXT at 256 length 512. [OK] tests 20 write to /FOO/BAR.TXT at 256 length 512.The full test results are available in `/src/_build/default/test/_build/_tests/88ECACD2-24A4-490D-8B3A-DC0D67A46CB2`.Test Successful in 0.000s. 21 tests run.2026-04-19 18:04.49 ---> saved as "b70de5bb180f41c1725de964006bdc3d5fafb6faaa0d42400c2fd709a869c9c7"Job succeeded2026-04-19 18:04.49: Job succeeded