Re:Mrustc: a Rust compiler written in C++
by kbenson on Thursday September 21, 2017 @07:34PM
(#15308190)
Interesting. Along with with your other comment about the borrow checker, I guess you could develop using (or occasionally check against) the rustc compiler for borrow checker correctness, and deploy using mrustc. That's pretty cool.
There appears to be an attempt to leverage this project to target ESP8266, which AFAIK LLVM does not support: https://github.com/emosenkis/esp-rs