The doc's, and more specifically the tutorials, can be a bit stale. If you're referencing the one I think you are (building the number guessing game) it's old.

The doc's, and more specifically the tutorials, can be a bit stale. If you're referencing the one I think you are (building the number guessing game) it's old. I'm sure it will be updated eventually. [1] One of the hardest things about learning Rust right now is that because it is not 1.0, lots of the tutorials, sample code and 3rd-party documentation is outdated - or parts of it are. Learning Rust "the right way" will certainly get easier after 1.0 is finally out and reliable/stable the tutorials, code bases and doc's will follow. [1] I just checked and it is in fact updated.