Some very small and not complete tests on my code show an improvement of ~20% in building time, apparently this is in line with other people's results [1]. Howe

Some very small and not complete tests on my code show an improvement of ~20% in building time, apparently this is in line with other people's results [1]. However, you can find in the comments on reddit that it is really not uniform. [1]: www.reddit.com/r/rust/comments/3qqdqk/announcing_rust_14/#cwhfnhc