Can be observed on the buildbots:
2023-09-17T14:19:34.2051345Z [10663/14808] Building CXX object drivers\wdm\audio\drivers\CMIDriver\cmicontrol\CMakeFiles\cmicontrol.dir\main.cpp.obj
2023-09-17T14:19:34.2052611Z D:\a\reactos\reactos\src\drivers\wdm\audio\drivers\CMIDriver\cmicontrol\main.cpp(818): warning C4267: '=': conversion from 'size_t' to 'unsigned int', possible loss of data