Organisations ocaml-multicore eio fea7ec ()windows-server-mingw-ltsc2025-5.4_opam-2.5
windows-server-mingw-ltsc2025-5.4_opam-2.5

Created at Jun 06 07:12 +00:00
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Finished at Jun 07 23:56 +00:00
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2026-06-06 07:12.12: New job: test ocaml-multicore/eio https://github.com/ocaml-multicore/eio.git#refs/pull/850/head (fea7ecbc7698e4343680936ddc7b10804533d347) (windows-x86_64:windows-server-mingw-ltsc2025-5.4_opam-2.5)
Base: ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:6b6bcfd98b4600d5c8de1feffe95b566f1c337d961157c2fea3ccf3e3c5939bd
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/ocaml-multicore/eio.git" && cd "eio" && git fetch origin "refs/pull/850/head" && git reset --hard fea7ecbc
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:6b6bcfd98b4600d5c8de1feffe95b566f1c337d961157c2fea3ccf3e3c5939bd
# windows-server-mingw-ltsc2025-5.4_opam-2.5
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
RUN ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam
RUN cd ~/opam-repository && (git cat-file -e c98b21e24c088665ccae4c3b53eadadd3b755b15 || git fetch origin master) && git reset -q --hard c98b21e24c088665ccae4c3b53eadadd3b755b15 && git log --no-decorate -n1 --oneline
RUN opam init --reinit -ni
RUN uname -rs && opam exec -- ocaml -version && opam --version
RUN opam update -u
COPY --chown=1000:1000 eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam /cygwin64/home/opam/src/./
RUN opam pin add -yn eio_windows.dev '/cygwin64/home/opam/src/./' && \
opam pin add -yn eio_posix.dev '/cygwin64/home/opam/src/./' && \
opam pin add -yn eio_main.dev '/cygwin64/home/opam/src/./' && \
opam pin add -yn eio_linux.dev '/cygwin64/home/opam/src/./' && \
opam pin add -yn eio.dev '/cygwin64/home/opam/src/./'
RUN echo '(lang dune 3.0)' > '/home/opam/src/./dune-project'
ENV DEPS="afl-persistent.1.4 alcotest.1.9.1 arch-x86_64.1 astring.0.8.5 backoff.0.1.1 base-bigarray.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.2.1.1 conf-bash.1 conf-mingw-w64-gcc-x86_64.1 containers.3.18 cppo.1.8.0 crowbar.0.2.2 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.3.23.1 dune-configurator.3.23.1 either.1.0.0 flexdll.0.44 fmt.0.11.0 hmap.0.8.1 host-arch-x86_64.1 host-system-mingw.1 iomux.0.4 kcas.0.7.0 lintcstubs-arity.0.5.2 logs.0.10.0 lwt-dllist.1.1.0 mdx.2.5.2 mingw-w64-shims.0.2.0 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-env-mingw64.1 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.1.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.14.0 result.1.5 seq.base stdlib-shims.0.3.0 system-mingw.1 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uutf.1.0.4 yojson.3.0.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.5 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio.dev $DEPS
RUN opam install $DEPS
COPY --chown=1000:1000 . /cygwin64/home/opam/src
RUN cd /home/opam/src && opam exec -- dune build --only-packages=eio_windows,eio_posix,eio_main,eio @install @check @runtest && rm -rf _build


END-OF-DOCKERFILE
docker build .
END-REPRO-BLOCK


2026-06-06 07:12.12: Using cache hint "ocaml-multicore/eio-ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:6b6bcfd98b4600d5c8de1feffe95b566f1c337d961157c2fea3ccf3e3c5939bd-windows-server-mingw-ltsc2025-5.4_opam-2.5-f213e6557b2857ef2e189ff0e09a4aa9"
2026-06-06 07:12.12: Using OBuilder spec:
((from ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:6b6bcfd98b4600d5c8de1feffe95b566f1c337d961157c2fea3ccf3e3c5939bd)
(comment windows-server-mingw-ltsc2025-5.4_opam-2.5)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(run (shell "ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam"))
(run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e c98b21e24c088665ccae4c3b53eadadd3b755b15 || git fetch origin master) && git reset -q --hard c98b21e24c088665ccae4c3b53eadadd3b755b15 && git log --no-decorate -n1 --oneline"))
(run (shell "opam init --reinit -ni"))
(run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
(run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam update -u"))
(copy (src eio_windows.opam eio_posix.opam eio_main.opam eio_linux.opam eio.opam)
(dst /cygwin64/home/opam/src/./))
(run (network host)
(shell  "opam pin add -yn eio_windows.dev '/cygwin64/home/opam/src/./' && \
\nopam pin add -yn eio_posix.dev '/cygwin64/home/opam/src/./' && \
\nopam pin add -yn eio_main.dev '/cygwin64/home/opam/src/./' && \
\nopam pin add -yn eio_linux.dev '/cygwin64/home/opam/src/./' && \
\nopam pin add -yn eio.dev '/cygwin64/home/opam/src/./'"))
(run (shell "echo '(lang dune 3.0)' > '/home/opam/src/./dune-project'"))
(env DEPS "afl-persistent.1.4 alcotest.1.9.1 arch-x86_64.1 astring.0.8.5 backoff.0.1.1 base-bigarray.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.2.1.1 conf-bash.1 conf-mingw-w64-gcc-x86_64.1 containers.3.18 cppo.1.8.0 crowbar.0.2.2 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.3.23.1 dune-configurator.3.23.1 either.1.0.0 flexdll.0.44 fmt.0.11.0 hmap.0.8.1 host-arch-x86_64.1 host-system-mingw.1 iomux.0.4 kcas.0.7.0 lintcstubs-arity.0.5.2 logs.0.10.0 lwt-dllist.1.1.0 mdx.2.5.2 mingw-w64-shims.0.2.0 mtime.2.1.0 multicore-magic.2.3.2 ocaml.5.4.1 ocaml-base-compiler.5.4.1 ocaml-compiler.5.4.1 ocaml-config.3 ocaml-env-mingw64.1 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml-version.4.1.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 optint.0.3.0 oseq.0.5.1 psq.0.2.1 re.1.14.0 result.1.5 seq.base stdlib-shims.0.3.0 system-mingw.1 thread-table.1.0.0 topkg.1.1.1 tsort.2.2.0 uutf.1.0.4 yojson.3.0.0")
(env CI true)
(env OCAMLCI true)
(run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam update --depexts && opam install --cli=2.5 --depext-only -y eio_windows.dev eio_posix.dev eio_main.dev eio.dev $DEPS"))
(run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam install $DEPS"))
(copy (src .) (dst /cygwin64/home/opam/src))
(run (shell "cd /home/opam/src && opam exec -- dune build --only-packages=eio_windows,eio_posix,eio_main,eio @install @check @runtest && rm -rf _build"))
)


2026-06-06 07:12.12: Waiting for resource in pool OCluster
2026-06-07 01:16.01: Waiting for worker…
2026-06-07 23:24.59: Got resource from pool OCluster
Building on ltsc2025-3
All commits already cached
HEAD is now at fea7ecb add ftruncate/fdatasync and use uring for fsync


(from ocaml/opam:windows-server-mingw-ltsc2025-ocaml-5.4@sha256:6b6bcfd98b4600d5c8de1feffe95b566f1c337d961157c2fea3ccf3e3c5939bd)
2026-06-07 23:25.10 ---> using "47f7838a4aa9bba8b4a71358c252d241055ea2dd7e9e55067a8fc43fd8ca6486" from cache


C:/: (comment windows-server-mingw-ltsc2025-5.4_opam-2.5)


C:/: (user (uid 1000) (gid 1000))


C:/: (env CLICOLOR_FORCE 1)


C:/: (env OPAMCOLOR always)


C:/: (run (shell "ln -f /usr/local/bin/opam-2.5 /usr/local/bin/opam"))
2026-06-07 23:25.10 ---> using "13c53a6739a624f85cfa07c5897ebb2fe832e07df2a198c2ee35e9bcf7662cb5" from cache


C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e c98b21e24c088665ccae4c3b53eadadd3b755b15 || git fetch origin master) && git reset -q --hard c98b21e24c088665ccae4c3b53eadadd3b755b15 && git log --no-decorate -n1 --oneline"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
1138ca347f..61948ed88d  master     -> origin/master
c98b21e24c Merge pull request #29993 from shonfeder/conditional-mdx-tests
2026-06-07 23:25.10 ---> using "0bb55465a068872d38cc3a72bb3d72c6cabfbf81ad7011bc5de580173eac64e6" from cache


C:/: (run (shell "opam init --reinit -ni"))
No configuration file found, using built-in defaults.


<><> Unix support infrastructure ><><><><><><><><><><><><><><><><><><><><><><><>


opam and the OCaml ecosystem in general require various Unix tools in order to operate correctly. At present, this requires the installation of Cygwin to provide these tools.


How should opam obtain Unix tools?
> 1. Use tools found in PATH (Cygwin installation at C:\cygwin64)
2. Automatically create an internal Cygwin installation that will be managed by opam (recommended)
3. Use Cygwin installation found in C:\cygwin64
4. Use another existing Cygwin/MSYS2 installation
5. Abort initialisation


[1/2/3/4/5] 1
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.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-06-07 23:52.11 ---> saved as "c1cbfd274c7c0fdae12333757ef167aa6ba51374e192828f682f732746f802db"


C:/: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
CYGWIN_NT-10.0-26100 3.6.9-1.x86_64
The OCaml toplevel, version 5.4.1
2.5.1
2026-06-07 23:53.11 ---> saved as "1c1523ed42e29a3730731fcf74038fb1eac97f601f3f92d9b4426cd4ea71b5dd"


C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam update -u"))


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes from git+file://C:/cygwin64/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)
Failure("Failed to commit snapshot obuilder-e6c4a6fb766345f8b2382aeaca3f1035ce2d67d11905f6d9260dde7d317d8d7c: \"ctr\" \"snapshot\" \"commit\" \"obuilder-e6c4a6fb766345f8b2382aeaca3f1035ce2d67d11905f6d9260dde7d317d8d7c-committed\" \"obuilder-e6c4a6fb766345f8b2382aeaca3f1035ce2d67d11905f6d9260dde7d317d8d7c\" failed with exit status 1")
2026-06-07 23:56.27: Job failed: Failed: Build failed