One big long term advantage of Rust is that it leverages LLVM. Basically anywhere LLVM gets ported Rust follows.

I could run Rust code on a PlayStation and PocketStation (although I had to cheat a bit on the former because LLVM doesn't support MIPS I).

LLVM is not as widely ported as GCC (especially on older, deprecated hardware) but it's getting there.

https://svkt.org/~simias/rustation/pockestation-rust.jpg