When I've been hacking around with Rust on Windows, I've been finding that it gives colorized text on the console. Which is fine, except that I've seen that text include white, yellow, blue, and black... at least one of which will be difficult to read against any of the terminal-window background colors I commonly use.
I do still wonder what background the folks who picked this color set thought we were going to use, though. Colorization of console messages can be a Fine Thing, sometimes...