Here's a good talk about the history of Rust and how it was developed by Mozilla to solve problems they had with Gecko: <a href="https://www.youtube.com/watch?v=79PSagCD_AY" rel="nofollow">https://www.youtube.com/watch?v=79PSagCD_AY</a>
I talked to a guy at Mozilla once and he said they got a pretty instable build. Some tests take a few runs before you know they are really okay and don't fail because something is wrong.<p>Hope Rust will get this problem solved :)