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Building on ltsc2025-1

(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-06 21:21.32 ---> 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"))
2026-03-06 21:21.32 ---> 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"))
2026-03-06 21:21.32 ---> 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.
2026-03-06 21:21.32 ---> 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)
-> installed conf-mingw-w64-gcc-x86_64.1
-> retrieved flexdll.0.44  (https://github.com/ocaml/flexdll/archive/refs/tags/0.44.tar.gz)
-> installed flexdll.0.44
-> installed ocaml-env-mingw64.1
-> installed ocaml-options-vanilla.1
-> installed system-mingw.1
-> installed mingw-w64-shims.0.2.0
-> retrieved ocaml-config.3  (2 extra sources)
-> retrieved ocaml-config.3  (2 extra sources)
-> 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)
2026-03-06 21:21.32 ---> using "bde3e22405d3d4b8eb936b6a5924016abe757c72ef4284f806d0ffa633cf6608" from cache

C:/: (run (network host)
          (shell "opam update --depexts"))
2026-03-06 21:21.32 ---> using "52107e23401ba5a409505a63e9d96ae2fb84390238c362f7049829fa18c5671f" from cache

C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
          (network host)
          (shell  "opam remove -y bls12-381-js.0.5.0\
                 \nopam install -vy bls12-381-js.0.5.0\
                 \nres=$?\
                 \nif [ $res = 31 ]; then\
                 \n    if opam show -f x-ci-accept-failures: bls12-381-js.0.5.0 | 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"))
[NOTE] bls12-381-js.0.5.0 is not installed.

Nothing to do.
The following actions will be performed:
=== recompile 1 package
  - recompile mingw-w64-shims           0.2.0    [uses conf-mingw-w64-gcc-i686]
=== install 35 packages
  - install   bls12-381                 0.5.0    [required by bls12-381-js]
  - install   bls12-381-gen             0.5.0    [required by bls12-381-js]
  - install   bls12-381-js              0.5.0
  - install   bls12-381-js-gen          0.5.0    [required by bls12-381-js]
  - install   cmdliner                  2.1.0    [required by js_of_ocaml-compiler]
  - install   conf-gmp                  5        [required by zarith]
  - install   conf-mingw-w64-gcc-i686   1        [required by conf-mingw-w64-gmp-i686]
  - install   conf-mingw-w64-gmp-i686   1        [required by conf-gmp]
  - install   conf-mingw-w64-gmp-x86_64 1        [required by conf-gmp]
  - install   conf-perl                 2        [required by zarith]
  - install   conf-pkg-config           4        [required by conf-mingw-w64-gmp-i686, conf-mingw-w64-gmp-x86_64]
  - install   csexp                     1.5.2    [required by dune-configurator]
  - install   dune                      3.21.1   [required by bls12-381-js]
  - install   dune-configurator         3.21.1   [required by bls12-381-js-gen]
  - install   ff-sig                    0.6.2    [required by bls12-381, bls12-381-js-gen]
  - install   gen                       1.1      [required by sedlex]
  - install   js_of_ocaml               6.3.2    [required by bls12-381-js]
  - install   js_of_ocaml-compiler      6.3.2    [required by bls12-381-js]
  - install   js_of_ocaml-ppx           6.3.2    [required by bls12-381-js]
  - install   menhir                    20260209 [required by js_of_ocaml-compiler]
  - install   menhirCST                 20260209 [required by menhir]
  - install   menhirGLR                 20260209 [required by menhir]
  - install   menhirLib                 20260209 [required by js_of_ocaml-compiler]
  - install   menhirSdk                 20260209 [required by js_of_ocaml-compiler]
  - install   ocaml-compiler-libs       v0.17.0  [required by js_of_ocaml-compiler]
  - install   ocamlfind                 1.9.8    [required by js_of_ocaml-compiler]
  - install   ppx_derivers              1.2.1    [required by ppxlib]
  - install   ppxlib                    0.37.0   [required by js_of_ocaml, js_of_ocaml-ppx]
  - install   sedlex                    3.7      [required by js_of_ocaml-compiler]
  - install   seq                       base     [required by gen]
  - install   sexplib0                  v0.17.0  [required by ppxlib]
  - install   stdlib-shims              0.3.0    [required by ppxlib]
  - install   yojson                    3.0.0    [required by js_of_ocaml-compiler]
  - install   zarith                    1.11     [required by bls12-381, bls12-381-js-gen]
  - install   zarith_stubs_js           v0.17.0  [required by bls12-381-js-gen]

The following system packages will first need to be installed:
    mingw64-i686-gcc-core mingw64-i686-gmp mingw64-x86_64-gmp 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 bls12-381-js.0.5.0' failed.
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y bls12-381-js.0.5.0
opam install -vy bls12-381-js.0.5.0
res=$?
if [ $res = 31 ]; then
    if opam show -f x-ci-accept-failures: bls12-381-js.0.5.0 | 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