Error installing libcst

Having a problem installing libcst, does this really require C compiler to be installed? Error below: copying lib\yaml\__init__.py -> build\lib.win-amd64-cpython-315\yaml creating build\lib.win-amd64-cpython-315\_yaml copying lib\_yaml\__init__.py -> build\lib.win-amd64-cpython-315\_yaml running build_ext No `pyyaml_build_config` setting found. skipping 'yaml\_yaml.c' Cython extension (up-to-date) BUILDING CYTHON EXT; self.include_dirs=['C:\\Program Fi...