[Tunabrain]

    (on Windows use MinGW/MSYS or Cygwin make and make sure you have rustc in PATH)

This made me chuckle - if you have MSYS installed, which already comes with a windows port of coreutils, why would you want to use it to build a windows port of coreutils?

[nwah1]

Because you don't trust the memory safety of programs written in C. Or because you think the coreutils would progress faster with a language with modern semantics like Rust.