I mean, probably? Significant chunks of Rust code are already making it into Firefox.<p>I will say that from my relatively limited experience of Rust, it's a language to use if you're really really sure that you can't use GC. Any time you want to use a graph-like data structure (which can quite often, in some applications) you have to do a significant amount of thinking that you just don't have to do in a language with GC.<p>I don't mean that as a criticism of the language. Rust makes automatic non-GC memory management about as easy and flexible as it could be. But it's still a significant cognitive overhead.