QT Build issue under Windows

[partouf]

https://github.com/compiler-explorer/infra/actions/runs/15001645629/job/42149903629

QT builds in most situations, but script determines the needed binaries are not available. Need to debug and investigate.

[partouf]

Fixed locally, but is still broken on the win builder

[partouf]

The Mingw errors are apparently normal errors

• https://code.videolan.org/videolan/vlc/-/merge_requests/6144
• https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90458

But the MSVC errors are not - but I don't see what error there is exactly...

[42/846] C:\Windows\system32\cmd.exe /C "cd /D C:\tmp\staging\588b14b2-f947-40aa-acdf-bf100b4c8dc3\vcpp_v19_42_VS17_12_x64_1\src\3rdparty\zlib && C:\tmp\staging\588b14b2-f947-40aa-acdf-bf100b4c8dc3\vcpp_v19_42_VS17_12_x64_1\bin\syncqt.exe @C:/tmp/staging/588b14b2-f947-40aa-acdf-bf100b4c8dc3/vcpp_v19_42_VS17_12_x64_1/src/3rdparty/zlib/ZlibPrivate_syncqt_args && C:\BuildTools\CMake\bin\cmake.exe -E touch C:/tmp/staging/588b14b2-f947-40aa-acdf-bf100b4c8dc3/vcpp_v19_42_VS17_12_x64_1/src/3rdparty/zlib/ZlibPrivate_syncqt_timestamp"

FAILED: src/3rdparty/zlib/ZlibPrivate_syncqt_timestamp C:/tmp/staging/588b14b2-f947-40aa-acdf-bf100b4c8dc3/vcpp_v19_42_VS17_12_x64_1/src/3rdparty/zlib/ZlibPrivate_syncqt_timestamp 
C:\Windows\system32\cmd.exe /C "cd /D C:\tmp\staging\588b14b2-f947-40aa-acdf-bf100b4c8dc3\vcpp_v19_42_VS17_12_x64_1\src\3rdparty\zlib && C:\tmp\staging\588b14b2-f947-40aa-acdf-bf100b4c8dc3\vcpp_v19_42_VS17_12_x64_1\bin\syncqt.exe @C:/tmp/staging/588b14b2-f947-40aa-acdf-bf100b4c8dc3/vcpp_v19_42_VS17_12_x64_1/src/3rdparty/zlib/ZlibPrivate_syncqt_args && C:\BuildTools\CMake\bin\cmake.exe -E touch C:/tmp/staging/588b14b2-f947-40aa-acdf-bf100b4c8dc3/vcpp_v19_42_VS17_12_x64_1/src/3rdparty/zlib/ZlibPrivate_syncqt_timestamp"
ninja: build stopped: subcommand failed.