There are still a lot of places where Rust isn't useable, especially when you're talking about things like embedded processors. Rust on the AVR, for example, re

There are still a lot of places where Rust isn't useable, especially when you're talking about things like embedded processors. Rust on the AVR, for example, requires very specific versions of llvm and clang to work, and even then, you have to write all of your IO code in a separate library, most likely in C. And it just rolls downhill from there. Wanna support the V850 that's found in a lot of automotive control systems? Nope. Rust doesn't quite have the ability to get down and dirty to do the kind of register tweaking you tend to do when you're using a processor with lots of IO you need to manage.