Rust has a nice way to download at https://www.rust-lang.org/downloads.html for Posix:
I actually wrote one for a friend who was having a very hard time getting started:
http://arsdnet.net/dcode/install-d.shPlease don't curl | sh it, but you can take a look at what it does. Nothing terribly special, though it does install wrapper scripts system-wide which is a rooty thing.
