Not too strange. Imagine the reverse: a C compiler written in Rust. There is an awful lot of software in C that I want to use, but I really dislike C itself. If I found some deficiency in C compilers and felt the need to write my own, I certainly would prefer to write it in Rust.
It would be a C implementation for people who don't like C.
It would be a C implementation for people who don't like C.