Rust is aiming for more than an incremental improvement. Take Servo, for example. The goal is to provide a generational leap in rendering engines, and while it's not done yet, the initial results are promising.

I agree that "salvation" is a bit much, though.

For whatever hype Go had and may have, it's still a resoundingly successful language that's building meaningful stuff that improves people's lives. Sounds like a success to me.