Fatal error C1001 when building "qtwebglplugin\src\plugins\platforms\webgl"

	cd webgl\ && ( if not exist Makefile C:\Dev\Libs\Qt5\build\windows-x86_64\qtbase\bin\qmake.exe -o Makefile C:\Dev\Libs\Qt5\src\qtwebglplugin\src\plugins\platforms\webgl\webgl.pro ) && C:\Dev\Tools\Jom\jom.exe -f Makefile
	C:\Dev\Tools\Jom\jom.exe -f Makefile.Debug all
	C:\Dev\Tools\Jom\jom.exe -f Makefile.Release all
	link /NOLOGO /DYNAMICBASE /NXCOMPAT /INCREMENTAL:NO /DLL /LTCG /SUBSYSTEM:WINDOWS /VERSION:5.12 /OUT:..\..\..\..\plugins\platforms\qwebgl.dll @C:\Temp\qwebgl.dll.8696.63.jom
   Creating library ..\..\..\..\plugins\platforms\qwebgl.lib and object ..\..\..\..\plugins\platforms\qwebgl.exp
Generating code
c:\dev\libs\qt5\src\qtwebglplugin\src\plugins\platforms\webgl\qwebglwebsocketserver.cpp(210) : fatal error C1001: An internal error has occurred in the compiler.
(compiler file 'd:\agent\_work\2\s\src\vctools\compiler\utc\src\p2\main.c', line 187)
 To work around this problem, try simplifying or changing the program near the locations listed above.
Please choose the Technical Support command on the Visual C++ 
 Help menu, or open the Technical Support help file for more information
  link!InvokeCompilerPassW()+0x42626
  link!InvokeCompilerPassW()+0x30242
c:\dev\libs\qt5\src\qtwebglplugin\src\plugins\platforms\webgl\qwebglwebsocketserver.cpp(210) : fatal error C1001: An internal error has occurred in the compiler.
(compiler file 'd:\agent\_work\2\s\src\vctools\compiler\utc\src\common\error.c', line 835)
 To work around this problem, try simplifying or changing the program near the locations listed above.
Please choose the Technical Support command on the Visual C++ 
 Help menu, or open the Technical Support help file for more information
LINK : fatal error LNK1257: code generation failed
jom: C:\Dev\Libs\Qt5\build\windows-x86_64\qtwebglplugin\src\plugins\platforms\webgl\Makefile.Release [..\..\..\..\plugins\platforms\qwebgl.dll] Error 1257

	link /NOLOGO /DYNAMICBASE /NXCOMPAT /INCREMENTAL:NO /DLL /LTCG /SUBSYSTEM:WINDOWS /VERSION:5.12 /OUT:..\..\..\..\plugins\platforms\qwebgl.dll @C:\Temp\qwebgl.dll.10168.47.jom
   Creating library ..\..\..\..\plugins\platforms\qwebgl.lib and object ..\..\..\..\plugins\platforms\qwebgl.exp
Generating code
c:\dev\libs\qt5\src\qtwebglplugin\src\plugins\platforms\webgl\qwebglwebsocketserver.cpp(157) : fatal error C1001: An internal error has occurred in the compiler.
(compiler file 'd:\agent\_work\1\s\src\vctools\compiler\utc\src\p2\main.c', line 187)
 To work around this problem, try simplifying or changing the program near the locations listed above.
Please choose the Technical Support command on the Visual C++ 
 Help menu, or open the Technical Support help file for more information

c:\dev\libs\qt5\src\qtwebglplugin\src\plugins\platforms\webgl\qwebglwebsocketserver.cpp(157) : fatal error C1001: An internal error has occurred in the compiler.
(compiler file 'd:\agent\_work\1\s\src\vctools\compiler\utc\src\common\error.c', line 835)
 To work around this problem, try simplifying or changing the program near the locations listed above.
Please choose the Technical Support command on the Visual C++ 
 Help menu, or open the Technical Support help file for more information
LINK : fatal error LNK1257: code generation failed