Ubuntu is using uutils experimentally in a non-LTS release. This kind of widespread testing will speed up the development process. Won't be long before it catches up and surpasses GNU coreutils. Then what? You want people to not use it? why?
One of the major problems with C, which like a lot of C's issues Rust just doesn't have, is that it's getting more difficult to find young, eager programmers willing to maintain a C codebase. The hassle of C outweighs the rewards, especially when Rust exists. So, ceteris paribus, development on the Rust version will outpace the C version, and you'll get more and smarter eyes on the code base.
Best to put the C code out to pasture, i.e. in maintenance mode only, with a deprecation plan in place.
One of the major problems with C, which like a lot of C's issues Rust just doesn't have, is that it's getting more difficult to find young, eager programmers willing to maintain a C codebase. The hassle of C outweighs the rewards, especially when Rust exists. So, ceteris paribus, development on the Rust version will outpace the C version, and you'll get more and smarter eyes on the code base.
Best to put the C code out to pasture, i.e. in maintenance mode only, with a deprecation plan in place.