qtvirtualkeyboard build failure

agent:2020/05/03 18:54:14 build.go:546: Executing instruction 19 of 44 - ExecuteCommand
agent:2020/05/03 18:54:14 build.go:276: [Mingw32-make] 36000 2700 false false
...
agent:2020/05/03 18:55:41 build.go:253: g++ -Wl,-s -shared -Wl,-subsystem,windows -Wl,--out-implib,C:\Users\qt\work\qt\qtvirtualkeyboard\plugins\virtualkeyboard\libqtvirtualkeyboard_openwnn.a -o ..\..\..\..\plugins\virtualkeyboard\qtvirtualkeyboard_openwnn.dll .obj/release/openwnnplugin.o .obj/release/openwnninputmethod.o .obj/release/qrc_qmake_virtualkeyboard_openwnn_layouts.o .obj/release/moc_openwnnplugin.o .obj/release/moc_openwnninputmethod_p.o  -LC:\openssl\lib -LC:\Utils\my_sql\mysql-5.7.25-win32\lib -LC:\Utils\postgresql\pgsql\lib C:\Users\qt\work\qt\qtvirtualkeyboard\lib\libQt6VirtualKeyboard.a C:\Users\qt\work\install\lib\libQt6Quick.a C:\Users\qt\work\install\lib\libQt6OpenGL.a C:\Users\qt\work\install\lib\libQt6Gui.a C:\Users\qt\work\install\lib\libQt6QmlModels.a C:\Users\qt\work\install\lib\libQt6Qml.a C:\Users\qt\work\install\lib\libQt6Network.a C:\Users\qt\work\install\lib\libQt6Core.a C:\Users\qt\work\install\lib\libqtopenwnn.a .obj\release\qtvirtualkeyboard_openwnn_resource_res.o   
agent:2020/05/03 18:55:41 build.go:253: g++: error: C:\Users\qt\work\install\lib\libqtopenwnn.a: No such file or directory
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make[5]: *** [Makefile.Release:77: ../../../../plugins/virtualkeyboard/qtvirtualkeyboard_openwnn.dll] Error 1
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make[5]: Leaving directory 'C:/Users/qt/work/qt/qtvirtualkeyboard/src/plugins/openwnn/plugin'
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make[4]: *** [Makefile:45: release] Error 2
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make[4]: Leaving directory 'C:/Users/qt/work/qt/qtvirtualkeyboard/src/plugins/openwnn/plugin'
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make[3]: *** [Makefile:76: sub-plugin-make_first] Error 2
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make[3]: Leaving directory 'C:/Users/qt/work/qt/qtvirtualkeyboard/src/plugins/openwnn'
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make[2]: *** [Makefile:79: sub-openwnn-make_first] Error 2
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make[2]: Leaving directory 'C:/Users/qt/work/qt/qtvirtualkeyboard/src/plugins'
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make[1]: *** [Makefile:180: sub-plugins-make_first] Error 2
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make[1]: Leaving directory 'C:/Users/qt/work/qt/qtvirtualkeyboard/src'
agent:2020/05/03 18:55:41 build.go:253: Mingw32-make: *** [Makefile:52: sub-src-make_first] Error 2
agent:2020/05/03 18:55:41 build.go:304: Process finished with error: exit status 2
agent:2020/05/03 18:55:41 build.go:529: Executing scheduled instruction 1 of 1 - Upload all core dumps if there are some
agent:2020/05/03 18:55:41 build.go:437: Skip uploading core files because CORE_FILES_PATH is not set in the environment
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