left shift cannot be represented in type 'int'
UBsan reports:
../subprojects/wlroots/xcursor/xcursor.c:292:14: runtime error: left shift of 255 by 24 places cannot be represented in type 'int'
../subprojects/wlroots/render/gles2/texture.c:260:29: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
That's with our 0.10 branch - it may be already fixed in newer wlroots.