I was surprised by the ease of use of libflate when decompressing a gzip'ed file:

extern crate libflate;
fn main() {
    let mut file = std::fs::<File::open>("file.gz").unwrap();
    let file = libflate::gzip::Decoder::new(&mut file).unwrap();

And that's it, file is now like a normal file!

Another module I used for the first time is regex, which seems to have such a well-designed API actually.

I made just one contribution this week.