Earlier quoted context omitted.
The thing is; Rust could have been implemented long ago. It was triggered by Mozillas need for a parallell browser engine that is safe and doesn't crash all the time. One would have thought the same need would have existed for other code such as kernels and drivers for many years.
This is my opinion as well. I know C is the only option right now . I'm amazed that we still find ourselves in that situation in 2014.
Also: C is the only option for parts of an OS. Writing it all in C because 10 or 25% needs it is a strange choice.