Well this is definitely wrong.Log: D:\Programowanie\free-cad-code\FreeCADLibs_11.5.3_x64_VC12\doxygen\bin
I would first try to delete D:\Programowanie\Anaconda3\envs\freecad_py3\Library\CMakeCache.txt
Run the .bat file
In VS build > Clean all, then Build all.
If this doesn't work maybe your FreeCAD source repo is polluted from an earlier in-source build attempt.