No need to downvote this; I'm an enthusiastic Rust follower and I as well recommend that you stay far away from Rust until it settles down a bit. Wait for 0.5 if you're adventurous, 0.6 if you expect some degree of feature-completion, 0.7 if you're fine with half-finished standard libraries, and even later if you expect a high degree of stability, ergonomics, documentation, or performance.