Building on ltsc2025-3
(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-09 02:37.41 ---> using "63e5ddb9687855d0a0c4c5e0088f813758807605401f3a88b07751088826ddff" from cache
C:/: (user (uid 1000) (gid 1000))
C:/: (env OPAMPRECISETRACKING 1)
C:/: (env OPAMUTF8 never)
C:/: (env OPAMEXTERNALSOLVER builtin-0install)
C:/: (env OPAMCRITERIA +removed)
C:/: (env CI true)
C:/: (env OPAM_HEALTH_CHECK_CI true)
C:/: (run (shell "ln -f /usr/local/bin/opam-dev.exe /usr/local/bin/opam.exe"))
2026-03-09 02:37.41 ---> using "eb751f1617949fccf400da87a349c508e73323f3f0e3482f2cce8c46fbcb6c21" from cache
C:/: (run (network host)
(shell "rm -rf ~/opam-repository && git clone -q 'https://github.com/ocaml/opam-repository' ~/opam-repository && git -C ~/opam-repository checkout -q 31db989bcaf14647d9889b8903120d6202ac37a8"))
2026-03-09 02:37.41 ---> using "ef58fca6f6db70f2bdfd85579892df7c50e047d2e179a3be59dcaa5c5a2d773c" from cache
C:/: (run (shell "rm -rf ~/.opam && opam init -ya --bare ~/opam-repository"))
User configuration:
Updating ~\.bashrc.
[NOTE] Make sure that ~/.bashrc is well sourced in your ~\.bash_profile.
Added 9 lines after line 1 in ~\.bashrc.
2026-03-09 02:37.41 ---> using "c700dfaf6f2da6800841bb961abfee8cd8858dee38ab51c0793b149f1795270d" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam switch create --repositories=default 'mingw-5.4' '5.4.0'"))
<><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
Switch invariant: ["ocaml-base-compiler" {= "5.4.0"}]
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed arch-x86_64.1
-> installed base-bigarray.base
-> installed base-threads.base
-> installed base-unix.base
-> installed host-arch-x86_64.1
-> installed host-system-mingw.1
-> retrieved mingw-w64-shims.0.2.0 (cached)
-> retrieved flexdll.0.44 (https://github.com/ocaml/flexdll/archive/refs/tags/0.44.tar.gz)
-> installed flexdll.0.44
-> installed ocaml-options-vanilla.1
-> installed conf-mingw-w64-gcc-x86_64.1
-> installed ocaml-env-mingw64.1
-> installed system-mingw.1
-> retrieved ocaml-config.3 (2 extra sources)
-> retrieved ocaml-config.3 (2 extra sources)
-> installed mingw-w64-shims.0.2.0
-> retrieved ocaml-compiler.5.4.0 (https://github.com/ocaml/ocaml/releases/download/5.4.0/ocaml-5.4.0.tar.gz)
-> installed ocaml-compiler.5.4.0
-> installed ocaml-base-compiler.5.4.0
-> installed ocaml-config.3
-> installed ocaml.5.4.0
-> installed base-domains.base
-> installed base-effects.base
-> installed base-nnp.base
Done.
# To update the current shell environment, run: eval $(opam env --switch=mingw-5.4)
2026-03-09 02:37.41 ---> using "bde3e22405d3d4b8eb936b6a5924016abe757c72ef4284f806d0ffa633cf6608" from cache
C:/: (run (network host)
(shell "opam update --depexts"))
2026-03-09 02:37.41 ---> using "52107e23401ba5a409505a63e9d96ae2fb84390238c362f7049829fa18c5671f" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam remove -y neural_nets_lib.0.6.1\
\nopam install -vy neural_nets_lib.0.6.1\
\nres=$?\
\nif [ $res = 31 ]; then\
\n if opam show -f x-ci-accept-failures: neural_nets_lib.0.6.1 | grep -q 'ocaml/opam:windows-server-mingw-ltsc2025-opam'; then\
\n echo \"This package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\"\
\n exit 69\
\n fi\
\nfi \
\n\
\n\
\nexit $res"))
Nothing to do.
[NOTE] neural_nets_lib.0.6.1 is not installed.
The following actions will be performed:
=== recompile 1 package
- recompile mingw-w64-shims 0.2.0 [uses conf-mingw-w64-gcc-i686]
=== install 97 packages
- install angstrom 0.16.1 [required by neural_nets_lib]
- install arrayjit 0.6.1 [required by neural_nets_lib]
- install astring 0.8.5 [required by mdx]
- install backoff 0.1.1 [required by saturn_lockfree]
- install base v0.17.3 [required by neural_nets_lib]
- install base-bytes base [required by csv]
- install bigstringaf 0.10.0 [required by angstrom]
- install camlp-streams 5.0.1 [required by mdx]
- install camlzip 1.14 [required by neural_nets_lib]
- install cmdliner 2.1.0 [required by mdx]
- install conf-libcurl 2 [required by curl]
- install conf-libffi 2.0.0 [required by ctypes-foreign]
- install conf-mingw-w64-curl-i686 1 [required by conf-libcurl]
- install conf-mingw-w64-curl-x86_64 1 [required by conf-libcurl]
- install conf-mingw-w64-gcc-i686 1 [required by conf-mingw-w64-zlib-i686, conf-mingw-w64-curl-i686]
- install conf-mingw-w64-libffi-i686 1 [required by conf-libffi]
- install conf-mingw-w64-libffi-x86_64 1 [required by conf-libffi]
- install conf-mingw-w64-zlib-i686 1 [required by conf-zlib]
- install conf-mingw-w64-zlib-x86_64 1 [required by conf-zlib]
- install conf-pkg-config 4 [required by ctypes-foreign, conf-zlib]
- install conf-zlib 1 [required by camlzip]
- install cppo 1.8.0 [required by mdx, ppx_deriving]
- install csexp 1.5.2 [required by dune-private-libs]
- install csv 2.4 [required by neural_nets_lib]
- install ctypes 0.24.0 [required by arrayjit]
- install ctypes-foreign 0.24.0 [required by arrayjit]
- install curl 0.10.0 [required by neural_nets_lib]
- install dune 3.21.1 [required by neural_nets_lib]
- install dune-configurator 3.21.1 [required by curl]
- install dune-private-libs 3.21.1 [required by dune-site]
- install dune-site 3.21.1 [required by neural_nets_lib]
- install dyn 3.21.1 [required by dune-private-libs]
- install fieldslib v0.17.0 [required by ppx_fields_conv]
- install fmt 0.11.0 [required by mdx]
- install fs-io 3.21.1 [required by stdune]
- install integers 0.7.0 [required by ctypes]
- install jane-street-headers v0.17.0 [required by time_now]
- install jst-config v0.17.0 [required by time_now]
- install logs 0.10.0 [required by mdx]
- install mdx 2.5.1 [required by ppx_minidebug]
- install mtime 2.1.0 [required by ppx_minidebug]
- install multicore-magic 2.3.2 [required by saturn_lockfree]
- install neural_nets_lib 0.6.1
- install num 1.6 [required by neural_nets_lib]
- install ocaml-compiler-libs v0.17.0 [required by ppxlib]
- install ocaml-syntax-shims 1.0.0 [required by angstrom]
- install ocaml-version 4.0.3 [required by mdx]
- install ocaml_intrinsics_kernel v0.17.1 [required by base]
- install ocamlbuild 0.16.1 [required by mtime, ptime]
- install ocamlfind 1.9.8 [required by camlzip]
- install ordering 3.21.1 [required by dyn, stdune]
- install parsexp v0.17.0 [required by sexplib]
- install pp 2.0.0 [required by dune-private-libs]
- install pprint 20230830 [required by neural_nets_lib]
- install ppx_assert v0.17.0 [required by jst-config]
- install ppx_base v0.17.0 [required by ppx_string]
- install ppx_cold v0.17.0 [required by ppx_base]
- install ppx_compare v0.17.0 [required by neural_nets_lib]
- install ppx_derivers 1.2.1 [required by ppxlib, ppx_deriving]
- install ppx_deriving 6.1.1 [required by ppx_minidebug]
- install ppx_enumerate v0.17.0 [required by ppx_base]
- install ppx_expect v0.17.3 [required by neural_nets_lib]
- install ppx_fields_conv v0.17.0 [required by neural_nets_lib]
- install ppx_globalize v0.17.2 [required by ppx_base]
- install ppx_hash v0.17.0 [required by neural_nets_lib]
- install ppx_here v0.17.0 [required by neural_nets_lib]
- install ppx_inline_test v0.17.1 [required by ppx_expect]
- install ppx_minidebug 2.4.0 [required by neural_nets_lib]
- install ppx_optcomp v0.17.1 [required by time_now]
- install ppx_sexp_conv v0.17.1 [required by neural_nets_lib]
- install ppx_string v0.17.0 [required by neural_nets_lib]
- install ppx_variants_conv v0.17.1 [required by neural_nets_lib]
- install ppxlib 0.37.0 [required by neural_nets_lib]
- install ppxlib_jane v0.17.4 [required by ppx_compare]
- install printbox 0.12 [required by neural_nets_lib]
- install printbox-ext-plot 0.12 [required by neural_nets_lib]
- install printbox-html 0.12 [required by printbox-ext-plot]
- install printbox-md 0.12 [required by printbox-ext-plot]
- install printbox-text 0.12 [required by neural_nets_lib]
- install ptime 1.2.0 [required by ppx_minidebug]
- install re 1.14.0 [required by ppx_minidebug]
- install result 1.5 [required by mdx]
- install saturn_lockfree 0.5.0 [required by arrayjit]
- install seq base [required by tyxml]
- install sexplib v0.17.0 [required by neural_nets_lib]
- install sexplib0 v0.17.0 [required by ppx_minidebug, base, sexplib]
- install stdio v0.17.0 [required by neural_nets_lib]
- install stdlib-shims 0.3.0 [required by integers, ppxlib]
- install stdune 3.21.1 [required by dune-private-libs]
- install thread-local-storage 0.2 [required by ppx_minidebug]
- install time_now v0.17.0 [required by neural_nets_lib]
- install top-closure 3.21.1 [required by stdune]
- install topkg 1.1.1 [required by mtime, ptime]
- install tyxml 4.6.0 [required by printbox-ext-plot]
- install uucp 17.0.0 [required by printbox-text]
- install uutf 1.0.4 [required by tyxml, printbox-text]
- install variantslib v0.17.0 [required by ppx_variants_conv]
The following system packages will first need to be installed:
mingw64-i686-curl mingw64-i686-gcc-core mingw64-i686-libffi mingw64-i686-zlib mingw64-x86_64-curl mingw64-x86_64-libffi mingw64-x86_64-zlib pkgconf
<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>
opam believes some required external dependencies are missing. opam can:
> 1. Run C:\opam\.opam\.cygwin\setup-x86_64.exe to install them (may need root/sudo access)
2. Display the recommended C:\opam\.opam\.cygwin\setup-x86_64.exe command and wait while you run it manually (e.g. in another terminal)
3. Continue anyway, and, upon success, permanently register that this external dependency is present, but not detectable
4. Abort the installation
[1/2/3/4] 4
[NOTE] You can retry with '--assume-depexts' to skip this check, or run 'opam option depext=false' to permanently disable handling of system packages.
Running the system package manager non-interactively requires '--confirm-level=unsafe-yes'.
'C:\cygwin64\usr\local\bin\opam.exe install -vy neural_nets_lib.0.6.1' failed.
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y neural_nets_lib.0.6.1
opam install -vy neural_nets_lib.0.6.1
res=$?
if [ $res = 31 ]; then
if opam show -f x-ci-accept-failures: neural_nets_lib.0.6.1 | grep -q 'ocaml/opam:windows-server-mingw-ltsc2025-opam'; then
echo "This package failed and has been disabled for CI using the 'x-ci-accept-failures' field."
exit 69
fi
fi
exit $res" failed with exit status 10
Failed: Build failed
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