The most noble reason one might offer is that it measures popular new tools against a widely used legacy of work in C, exposing the subtle corner cases that lur

The most noble reason one might offer is that it measures popular new tools against a widely used legacy of work in C, exposing the subtle corner cases that lurk in Rust and its ecosystem. More likely it's enthusiasm and surplus energy finding an outlet. Licensing is cited often. For coreutils? Whose lucrative commercial scheme has a custom tail(1) as its secret sauce? Doesn't make sense to me. Looking at the top contributors it's some Rust enthusiasts and a Debian project Director. I'd expect to see hardware manufacturer employees or similar if this were about licensing.