2025-05-15 13:38.49: New job: test ocaml-multicore/eio https://github.com/ocaml-multicore/eio.git#refs/pull/796/head (654ca6c40a5309fef22390488a955a84e099c2b9) (freebsd-x86_64:freebsd-14.2-5.3_opam-2.3)Base: freebsd-14.2-ocaml-5.3Opam project buildTo reproduce locally:git clone --recursive "https://github.com/ocaml-multicore/eio.git" && cd "eio" && git fetch origin "refs/pull/796/head" && git reset --hard 654ca6c4cat > Dockerfile <<'END-OF-DOCKERFILE'FROM freebsd-14.2-ocaml-5.3# freebsd-14.2-5.3_opam-2.3USER 1000:1000ENV CLICOLOR_FORCE="1"ENV OPAMCOLOR="always"WORKDIR /srcRUN sudo ln -f /usr/local/bin/opam-2.3 /usr/local/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 43251244857e0b885b9fce935584448f4fca0dcb || git fetch origin master) && git reset -q --hard 43251244857e0b885b9fce935584448f4fca0dcb && git log --no-decorate -n1 --oneline && opam update -uCOPY --chown=1000:1000 eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam ./RUN opam pin add -yn eio_windows.dev './' && \opam pin add -yn eio_posix.dev './' && \opam pin add -yn eio_main.dev './' && \opam pin add -yn eio_linux.dev './' && \opam pin add -yn eio.dev './'RUN echo '(lang dune 3.0)' > './dune-project'ENV DEPS="afl-persistent.1.4 alcotest.1.9.0 astring.0.8.5 backoff.0.1.1 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.1.3.0 conf-bash.1 containers.3.15 cppo.1.8.0 crowbar.0.2.1 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 domain-local-timeout.1.0.1 dscheck.0.5.0 dune.3.18.2 dune-configurator.3.18.2 either.1.0.0 fmt.0.10.0 hmap.0.8.1 iomux.0.3 kcas.0.7.0 logs.0.8.0 lwt-dllist.1.1.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.12.0 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.0.8 tsort.2.2.0 uutf.1.0.4 yojson.2.2.2"ENV CI="true"ENV OCAMLCI="true"RUN opam update --depexts && opam install --cli=2.3 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio.dev $DEPSRUN opam install $DEPSCOPY --chown=1000:1000 . /srcRUN opam exec -- dune build --only-packages=eio_windows,eio_posix,eio_main,eio @install @check @runtest && rm -rf _buildEND-OF-DOCKERFILEdocker build .END-REPRO-BLOCK2025-05-15 13:38.49: Using cache hint "ocaml-multicore/eio-freebsd-14.2-ocaml-5.3-freebsd-14.2-5.3_opam-2.3-09def6b983cc0df4782e7973eb74e507"2025-05-15 13:38.49: Using OBuilder spec:((from freebsd-14.2-ocaml-5.3)(comment freebsd-14.2-5.3_opam-2.3)(user (uid 1000) (gid 1000))(env CLICOLOR_FORCE 1)(env OPAMCOLOR always)(workdir /src)(run (shell "sudo ln -f /usr/local/bin/opam-2.3 /usr/local/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 43251244857e0b885b9fce935584448f4fca0dcb || git fetch origin master) && git reset -q --hard 43251244857e0b885b9fce935584448f4fca0dcb && git log --no-decorate -n1 --oneline && opam update -u"))(copy (src eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam)(dst ./))(run (network host)(shell "opam pin add -yn eio_windows.dev './' && \\nopam pin add -yn eio_posix.dev './' && \\nopam pin add -yn eio_main.dev './' && \\nopam pin add -yn eio_linux.dev './' && \\nopam pin add -yn eio.dev './'"))(run (network host)(shell "echo '(lang dune 3.0)' > './dune-project'"))(env DEPS "afl-persistent.1.4 alcotest.1.9.0 astring.0.8.5 backoff.0.1.1 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.1.3.0 conf-bash.1 containers.3.15 cppo.1.8.0 crowbar.0.2.1 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 domain-local-timeout.1.0.1 dscheck.0.5.0 dune.3.18.2 dune-configurator.3.18.2 either.1.0.0 fmt.0.10.0 hmap.0.8.1 iomux.0.3 kcas.0.7.0 logs.0.8.0 lwt-dllist.1.1.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.12.0 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.0.8 tsort.2.2.0 uutf.1.0.4 yojson.2.2.2")(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=2.3 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio.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 --only-packages=eio_windows,eio_posix,eio_main,eio @install @check @runtest && rm -rf _build")))2025-05-15 13:38.49: Waiting for resource in pool OCluster2025-05-15 13:38.49: Waiting for worker…2025-05-15 13:38.49: Got resource from pool OClusterBuilding on rosemaryAll commits already cachedHEAD is now at 654ca6c Introduce Buf_write.of_flow(from freebsd-14.2-ocaml-5.3)2025-05-15 13:38.51 ---> using "47c9a03b962be450225081ed69acde1f5c6dadb6d1106d9b1a8b4fd61c2defa6" from cache/: (comment freebsd-14.2-5.3_opam-2.3)/: (user (uid 1000) (gid 1000))/: (env CLICOLOR_FORCE 1)/: (env OPAMCOLOR always)/: (workdir /src)/src: (run (shell "sudo ln -f /usr/local/bin/opam-2.3 /usr/local/bin/opam"))2025-05-15 13:38.51 ---> using "6c919feff42b8acbece064f547886f17e62a0f8c652c95803d5cc1a0edc05bf0" from cache/src: (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 /home/opam/.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:///home/opam/opam-repository2025-05-15 13:38.52 ---> using "ef1aecc2d79e0d6d7a69975e03fbee48aae321cc5ded967c4b85817abcd33408" from cache/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))FreeBSD 14.2-RELEASE-p1The OCaml toplevel, version 5.3.02.3.02025-05-15 13:38.52 ---> using "b81c61e28dd398a2621aef3fc778c808fda4399fe66dbfb28a40b55bd44ce32a" from cache/src: (workdir /src)/src: (run (shell "sudo chown opam /src"))2025-05-15 13:38.52 ---> using "46859cd3f1ed5f6081f98d282b27cc9fcab2b0b04b4be45ac52d723eb6d8a59e" from cache/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))(network host)(shell "cd ~/opam-repository && (git cat-file -e 43251244857e0b885b9fce935584448f4fca0dcb || git fetch origin master) && git reset -q --hard 43251244857e0b885b9fce935584448f4fca0dcb && git log --no-decorate -n1 --oneline && opam update -u"))From https://github.com/ocaml/opam-repository* branch master -> FETCH_HEAD0d013e603b..8efeb9aa26 master -> origin/master4325124485 Merge pull request #27868 from shonfeder/mark-iomux-unavailable-on-windows<><> 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).The following packages are not being upgraded because the new versions conflict with other installed packages:- ocaml.5.5.0- ocaml-compiler.5.5∗ ocaml-base-compiler.5.3.0 is installed and requires ocaml-compiler = 5.3.0However, you may "opam upgrade" these packages explicitly, which will ask permission to downgrade or uninstall the conflicting packages.Nothing to do.2025-05-15 13:38.53 ---> using "3b9ed6be915b17727d610ba8080a4bd5a4bc17b79dae45d38a3641316dd81817" from cache/src: (copy (src eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam)(dst ./))2025-05-15 13:38.53 ---> using "cb5b67fed0bab569530c6e16d25189f32675a9732e65746b2d364a77b4d5f0c8" from cache/src: (run (network host)(shell "opam pin add -yn eio_windows.dev './' && \\nopam pin add -yn eio_posix.dev './' && \\nopam pin add -yn eio_main.dev './' && \\nopam pin add -yn eio_linux.dev './' && \\nopam pin add -yn eio.dev './'"))[eio_windows.dev] synchronised (file:///src)eio_windows is now pinned to file:///src (version dev)[eio_posix.dev] synchronised (file:///src)eio_posix is now pinned to file:///src (version dev)[eio_main.dev] synchronised (file:///src)eio_main is now pinned to file:///src (version dev)[eio_linux.dev] synchronised (file:///src)eio_linux is now pinned to file:///src (version dev)[eio.dev] synchronised (file:///src)eio is now pinned to file:///src (version dev)2025-05-15 13:38.53 ---> using "4eda1037b5306e16426855f663aefd7fae45ec3d67f3c03a3b5b018894adb5f8" from cache/src: (run (network host)(shell "echo '(lang dune 3.0)' > './dune-project'"))2025-05-15 13:38.54 ---> using "9af2f6561984551a228969707fbaedef99dfa6635cf05980b0eed8c70acf6364" from cache/src: (env DEPS "afl-persistent.1.4 alcotest.1.9.0 astring.0.8.5 backoff.0.1.1 base-bigarray.base base-bytes.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigstringaf.0.10.0 camlp-streams.5.0.1 cmdliner.1.3.0 conf-bash.1 containers.3.15 cppo.1.8.0 crowbar.0.2.1 csexp.1.5.2 cstruct.6.2.0 domain-local-await.1.0.1 domain-local-timeout.1.0.1 dscheck.0.5.0 dune.3.18.2 dune-configurator.3.18.2 either.1.0.0 fmt.0.10.0 hmap.0.8.1 iomux.0.3 kcas.0.7.0 logs.0.8.0 lwt-dllist.1.1.0 mdx.2.5.0 mtime.2.1.0 multicore-magic.2.3.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.0.0 ocamlbuild.0.16.1 ocamlfind.1.9.8 ocplib-endian.1.2 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.12.0 result.1.5 seq.base stdlib-shims.0.3.0 thread-table.1.0.0 topkg.1.0.8 tsort.2.2.0 uutf.1.0.4 yojson.2.2.2")/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=2.3 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio.dev $DEPS"))[WARNING] Unknown update command for bsd, skipping system update<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>[eio.dev] synchronised (file:///src)[eio_posix.dev] synchronised (file:///src)[eio_main.dev] synchronised (file:///src)[eio_windows.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 5.3.0).[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).[NOTE] Package ocaml is already installed (current version is 5.3.0).[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).2025-05-15 13:38.54 ---> using "d745fc7b31edc493144011b484e06cd9b958e922466a3d6c34125172e861e1f2" from cache/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 5.3.0).[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).[NOTE] Package ocaml is already installed (current version is 5.3.0).[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 46 packages∗ afl-persistent 1.4∗ alcotest 1.9.0∗ astring 0.8.5∗ backoff 0.1.1∗ base-bytes base∗ bigstringaf 0.10.0∗ camlp-streams 5.0.1∗ cmdliner 1.3.0∗ conf-bash 1∗ containers 3.15∗ cppo 1.8.0∗ crowbar 0.2.1∗ csexp 1.5.2∗ cstruct 6.2.0∗ domain-local-await 1.0.1∗ domain-local-timeout 1.0.1∗ dscheck 0.5.0∗ dune 3.18.2∗ dune-configurator 3.18.2∗ either 1.0.0∗ fmt 0.10.0∗ hmap 0.8.1∗ iomux 0.3∗ kcas 0.7.0∗ logs 0.8.0∗ lwt-dllist 1.1.0∗ mdx 2.5.0∗ mtime 2.1.0∗ multicore-magic 2.3.1∗ ocaml-syntax-shims 1.0.0∗ ocaml-version 4.0.0∗ ocamlbuild 0.16.1∗ ocamlfind 1.9.8∗ ocplib-endian 1.2∗ optint 0.3.0∗ oseq 0.5.1∗ psq 0.2.1∗ re 1.12.0∗ result 1.5∗ seq base∗ stdlib-shims 0.3.0∗ thread-table 1.0.0∗ topkg 1.0.8∗ tsort 2.2.0∗ uutf 1.0.4∗ yojson 2.2.2<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>⬇ retrieved afl-persistent.1.4 (cached)⬇ retrieved backoff.0.1.1 (cached)⬇ retrieved astring.0.8.5 (cached)⬇ retrieved bigstringaf.0.10.0 (cached)⬇ retrieved camlp-streams.5.0.1 (cached)∗ installed conf-bash.1⬇ retrieved cmdliner.1.3.0 (cached)⬇ retrieved alcotest.1.9.0 (cached)⬇ retrieved cppo.1.8.0 (cached)⬇ retrieved crowbar.0.2.1 (cached)⬇ retrieved csexp.1.5.2 (cached)⬇ retrieved containers.3.15 (cached)⬇ retrieved domain-local-await.1.0.1 (cached)⬇ retrieved cstruct.6.2.0 (cached)⬇ retrieved dscheck.0.5.0 (cached)⬇ retrieved either.1.0.0 (cached)⬇ retrieved fmt.0.10.0 (cached)⬇ retrieved hmap.0.8.1 (cached)⬇ retrieved iomux.0.3 (cached)⬇ retrieved domain-local-timeout.1.0.1 (https://github.com/ocaml-multicore/domain-local-timeout/releases/download/1.0.1/domain-local-timeout-1.0.1.tbz)⬇ retrieved logs.0.8.0 (cached)⬇ retrieved lwt-dllist.1.1.0 (cached)⬇ retrieved kcas.0.7.0 (https://github.com/ocaml-multicore/kcas/archive/refs/tags/0.7.0.tar.gz)⬇ retrieved mdx.2.5.0 (cached)⬇ retrieved mtime.2.1.0 (cached)⬇ retrieved multicore-magic.2.3.1 (cached)⬇ retrieved ocaml-syntax-shims.1.0.0 (cached)⬇ retrieved ocaml-version.4.0.0 (cached)⬇ retrieved ocamlfind.1.9.8 (cached)⬇ retrieved ocplib-endian.1.2 (cached)⬇ retrieved ocamlbuild.0.16.1 (cached)⬇ retrieved oseq.0.5.1 (cached)⬇ retrieved optint.0.3.0 (cached)⬇ retrieved psq.0.2.1 (cached)⬇ retrieved re.1.12.0 (cached)⬇ retrieved seq.base (cached)∗ installed seq.base⬇ retrieved stdlib-shims.0.3.0 (cached)⬇ retrieved result.1.5 (cached)⬇ retrieved thread-table.1.0.0 (cached)⬇ retrieved tsort.2.2.0 (cached)⬇ retrieved uutf.1.0.4 (cached)⬇ retrieved topkg.1.0.8 (cached)⬇ retrieved yojson.2.2.2 (cached)⬇ retrieved dune.3.18.2, dune-configurator.3.18.2 (cached)∗ installed cmdliner.1.3.0∗ installed ocamlbuild.0.16.1∗ installed ocamlfind.1.9.8∗ installed base-bytes.base∗ installed topkg.1.0.8∗ installed hmap.0.8.1∗ installed mtime.2.1.0∗ installed uutf.1.0.4∗ installed fmt.0.10.0∗ installed astring.0.8.5∗ installed logs.0.8.0∗ installed dune.3.18.2∗ installed tsort.2.2.0∗ installed thread-table.1.0.0∗ installed stdlib-shims.0.3.0∗ installed result.1.5∗ installed psq.0.2.1∗ installed oseq.0.5.1∗ installed optint.0.3.0∗ installed ocaml-version.4.0.0∗ installed ocaml-syntax-shims.1.0.0∗ installed multicore-magic.2.3.1∗ installed lwt-dllist.1.1.0∗ installed either.1.0.0∗ installed cstruct.6.2.0∗ installed csexp.1.5.2∗ installed domain-local-timeout.1.0.1∗ installed domain-local-await.1.0.1∗ installed yojson.2.2.2∗ installed re.1.12.0∗ installed cppo.1.8.0∗ installed camlp-streams.5.0.1∗ installed ocplib-endian.1.2∗ installed backoff.0.1.1∗ installed afl-persistent.1.4∗ installed kcas.0.7.0∗ installed dune-configurator.3.18.2∗ installed alcotest.1.9.0∗ installed crowbar.0.2.1∗ installed bigstringaf.0.10.0∗ installed iomux.0.3∗ installed mdx.2.5.0∗ installed containers.3.15∗ installed dscheck.0.5.0Done.<><> afl-persistent.1.4 installed successfully ><><><><><><><><><><><><><><><><>=> afl-persistent is installed, but since the current OCaml compiler doesnot enable AFL instrumentation by default, most packages will not beinstrumented and fuzzing with afl-fuzz may not be effective.To globally enable AFL instrumentation, create an OCaml switch like:opam switch create 5.3.0+afl ocaml-variants.5.3.0+options ocaml-option-afl2025-05-15 13:40.27 ---> saved as "446e3c395bec86013beaa43eb99f4f6b1d930aadbd284530a00ed2934c89e462"/src: (copy (src .) (dst /src))2025-05-15 13:40.28 ---> saved as "d40584378c0a2c0444afdb2c02c0654597dbf73c0f6363637246b9db46d460c6"/src: (run (shell "opam exec -- dune build --only-packages=eio_windows,eio_posix,eio_main,eio @install @check @runtest && rm -rf _build"))File "fuzz/dune", line 4, characters 23-37:4 | (names fuzz_buf_read fuzz_buf_write fuzz_inherit_fds))^^^^^^^^^^^^^^(cd _build/default/fuzz && ./fuzz_buf_write.exe)random ops: FAILWhen given the input:[[#2 schedule_cstruct:""]; false]the test threw an exception:Eio_mock__Backend.Deadlock_detectedRaised at Eio_mock__Backend.run_full in file "lib_eio/mock/backend.ml", line 112, characters 12-35Called from Crowbar.gen_apply.go.(fun) in file "src/crowbar.ml", line 325, characters 16-19(cd _build/default/fuzz && ./fuzz_inherit_fds.exe)inherit_fds: PASS(cd _build/default/fuzz && ./fuzz_buf_read.exe)random ops: PASSFile "tests/buf_write.md", line 1, characters 0-0:/usr/local/bin/git --no-pager diff --no-index --color=always -u _build/default/tests/buf_write.md _build/default/tests/.mdx/buf_write.md.correcteddiff --git a/_build/default/tests/buf_write.md b/_build/default/tests/.mdx/buf_write.md.correctedindex a5855d7..13e02ea 100644--- a/_build/default/tests/buf_write.md+++ b/_build/default/tests/.mdx/buf_write.md.corrected@@ -17,7 +17,7 @@ let flow = Eio_mock.Flow.make "flow"Write.with_flow flow @@ fun w ->Write.string w "Hello"; Write.char w ' '; Write.string w "world";;+flow: wrote "Hello world"-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Auto-commit@@ -32,7 +32,7 @@ If we yield then we flush the data so far:Write.string w "world";;+flow: wrote "Hello "+flow: wrote "world"-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Read source buffer@@ -47,7 +47,7 @@ If supported by the flow, we can avoid copying:Write.schedule_cstruct w (Cstruct.of_string "world");Write.char w '!';;+flow: wrote ["Hello "; "world"; "!"]-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Pausing@@ -62,7 +62,7 @@ Without pausing:Write.string w "world";;+flow: wrote "Hello... "+flow: wrote "world"-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```With pausing@@ -76,7 +76,7 @@ With pausingWrite.unpause w;Write.string w "world";;+flow: wrote ["Hello... "; "world"]-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Empty writes@@ -88,7 +88,7 @@ With pausingWrite.bytes t (Bytes.make 0 '\000');Write.cstruct t Cstruct.empty;Write.schedule_cstruct t Cstruct.empty;;-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Endianness@@ -101,7 +101,7 @@ With pausingWrite.BE.uint16 t 5;;+flow: wrote "\005\000"+flow: wrote "\000\005"-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Writes@@ -120,7 +120,7 @@ With pausing+flow: wrote "test"+flow: wrote "test"+flow: wrote "A"-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Multiple writes@@ -141,9 +141,7 @@ With pausingWrite.with_flow ~initial_size:1 flow f;;+With room:+flow: wrote "testtestte"-+Without room:-+flow: wrote ["te"; "st"; "te"; "st"; "te"]-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Formatting@@ -181,7 +179,7 @@ With pausing+flow: wrote "tcp:[::1]:8080This is a second call to printf\n"+ "\n"+flow: wrote "Flushed. Goodbye\n"-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Flushing@@ -214,7 +212,7 @@ Eio_mock.Flow.on_copy_bytes flow [+flow: wrote "Hel"+flow: wrote "lo"+Flushed-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```Multiple flushes:@@ -242,7 +240,7 @@ Multiple flushes:+flow: wrote "f"+3rd flush+Done-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```Check flush waits for the write to succeed:@@ -278,7 +276,7 @@ let slow_writer =traceln "Flush complete"+Write "test"+Flush complete-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Scheduling@@ -299,7 +297,7 @@ let slow_writer =+flow: wrote ["one"; "two"]+flow: wrote "end"+Should all be flushed by now.-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Cancellation@@ -339,7 +337,7 @@ Exception: Failure "Simulated error".Write.with_flow flow @@ fun t ->try Write.string t "hi" ~off:100; assert falsewith Invalid_argument _ -> ();;-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```## Serialize@@ -399,8 +397,6 @@ We still flush the output on error:Write.string t "foo";failwith "Simulated error";;+flow: wrote "f"-+flow: wrote "o"-+flow: wrote "o"Exception: Failure "Simulated error".```@@ -480,7 +476,7 @@ But the flush does succeed in the normal case:+flow: wrote "fo"+flow: wrote "o"+Flush succeeded-- : unit = ()+Exception: Eio_mock__Backend.Deadlock_detected.```If we don't pass a switch then we can still cancel flushes manually:2025-05-15 14:38.49: Cancelling: Timeout (60.0 minutes)Job cancelled2025-05-15 14:38.50: Timeout (60.0 minutes)