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Building on ltsc2025-2

(from ocaml/opam:windows-server-mingw-ltsc2025-opam)
2026-03-18 07:45.58 ---> 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"))
2026-03-18 07:45.58 ---> 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 e589be2bb3f3c3428c9c98a122428f3ad2d44845"))
2026-03-18 07:45.58 ---> using "e45ceda38848c636c52a582b7b0e0300f8265fd055608e2010eb9091af016259" 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.
2026-03-18 07:45.58 ---> using "fca0867f47a2fc38aa8538df0aa1321357eb4edfd9be8bd5b70f35382e16c023" 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 flexdll.0.44  (cached)
-> retrieved ocaml-config.3  (cached)
-> installed flexdll.0.44
-> installed ocaml-options-vanilla.1
-> retrieved mingw-w64-shims.0.2.0  (cached)
-> installed conf-mingw-w64-gcc-x86_64.1
-> installed ocaml-env-mingw64.1
-> installed system-mingw.1
-> installed mingw-w64-shims.0.2.0
-> retrieved ocaml-compiler.5.4.0  (cached)
-> 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)
2026-03-18 07:45.58 ---> using "50e23bda8cb7e182e2fb806cb3f1c6566c93ab53027ddfe1f4220b08bd2bf8f7" from cache

C:/: (run (network host)
          (shell "opam update --depexts"))
2026-03-18 07:45.58 ---> using "882bc898cf68e632dee31003c12789c688566b3783a36d413db7b6a44325a086" from cache

C:/: (run (cache (opam-archives (target "c:\\opam\\.opam\\download-cache")))
          (network host)
          (shell  "opam remove -y conf-python-2-7-dev.1.0\
                 \nopam install -vy conf-python-2-7-dev.1.0\
                 \nres=$?\
                 \nif [ $res = 31 ]; then\
                 \n    if opam show -f x-ci-accept-failures: conf-python-2-7-dev.1.0 | 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] conf-python-2-7-dev.1.0 is not installed.

The following actions will be performed:
=== install 1 package
  - install conf-python-2-7-dev 1.0

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  1/3: [conf-python-2-7-dev.1.0/test.c: dl]
-> retrieved conf-python-2-7-dev.1.0  (https://raw.githubusercontent.com/ocaml/opam-source-archives/main/patches/conf-python-2-7-dev/test.c)

#=== ERROR while compiling conf-python-2-7-dev.1.0 ============================#
"cc": command not found.


<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build conf-python-2-7-dev 1.0
+- 
- No changes have been performed
# To update the current shell environment, run: eval $(opam env)
'C:\cygwin64\usr\local\bin\opam.exe install -vy conf-python-2-7-dev.1.0' failed.
"C:\cygwin64\bin\bash.exe" "-lc" "opam remove -y conf-python-2-7-dev.1.0
opam install -vy conf-python-2-7-dev.1.0
res=$?
if [ $res = 31 ]; then
    if opam show -f x-ci-accept-failures: conf-python-2-7-dev.1.0 | 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 31
Failed: Build failed