Building on ltsc2025-1
(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-09 17:01.23 ---> 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 17:01.23 ---> 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 17:01.23 ---> 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 17:01.23 ---> 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 $(opam env --switch=mingw-5.4)
2026-03-09 17:01.23 ---> using "bde3e22405d3d4b8eb936b6a5924016abe757c72ef4284f806d0ffa633cf6608" from cache
C:/: (run (network host)
(shell "opam update --depexts"))
2026-03-09 17:01.23 ---> using "52107e23401ba5a409505a63e9d96ae2fb84390238c362f7049829fa18c5671f" from cache
C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
(network host)
(shell "opam remove -y opam-solver.2.5.0\
\nopam install -vy opam-solver.2.5.0\
\nres=$?\
\nif [ $res = 31 ]; then\
\n if opam show -f x-ci-accept-failures: opam-solver.2.5.0 | 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] opam-solver.2.5.0 is not installed.
The following actions will be performed:
=== recompile 1 package
- recompile mingw-w64-shims 0.2.0 [uses conf-mingw-w64-g++-i686]
=== install 33 packages
- install 0install-solver 2.18 [required by opam-0install-cudf]
- install base64 3.5.2 [required by dose3]
- install conf-c++ 1.0 [required by mccs]
- install conf-mingw-w64-g++-i686 1 [required by conf-c++]
- install conf-mingw-w64-g++-x86_64 1 [required by conf-c++]
- install conf-mingw-w64-gcc-i686 1 [required by opam-core]
- install cppo 1.8.0 [required by extlib]
- install cudf 0.10 [required by opam-solver]
- install dose3 7.0.0 [required by opam-solver]
- install dune 3.21.1 [required by opam-solver]
- install extlib 1.8.0 [required by cudf, dose3]
- install jsonm 1.0.2 [required by opam-core]
- install mccs 1.1+19 [required by opam-solver]
- install menhir 20260209 [required by opam-file-format]
- install menhirCST 20260209 [required by menhir]
- install menhirGLR 20260209 [required by menhir]
- install menhirLib 20260209 [required by menhir]
- install menhirSdk 20260209 [required by menhir]
- install ocamlbuild 0.16.1 [required by jsonm]
- install ocamlfind 1.9.8 [required by jsonm]
- install ocamlgraph 2.2.0 [required by dose3]
- install opam-0install-cudf 0.5.0 [required by opam-solver]
- install opam-core 2.5.0 [required by opam-format]
- install opam-file-format 2.2.0 [required by opam-format]
- install opam-format 2.5.0 [required by opam-solver]
- install opam-solver 2.5.0
- install patch 3.1.0 [required by opam-core]
- install re 1.14.0 [required by opam-solver]
- install sha 1.15.4 [required by opam-core]
- install stdlib-shims 0.3.0 [required by dose3]
- install swhid_core 0.1 [required by opam-core]
- install topkg 1.1.1 [required by jsonm]
- install uutf 1.0.4 [required by opam-core]
The following system packages will first need to be installed:
mingw64-i686-gcc-core mingw64-i686-gcc-g++ mingw64-x86_64-gcc-g++
[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'.
<><> 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
'C:\cygwin64\usr\local\bin\opam.exe install -vy opam-solver.2.5.0' failed.
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y opam-solver.2.5.0
opam install -vy opam-solver.2.5.0
res=$?
if [ $res = 31 ]; then
if opam show -f x-ci-accept-failures: opam-solver.2.5.0 | 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