Love seeing more Rust. It's good stuff.
extern crate rocket;
I thought "extern crate XYZ" was old-style? "use XYZ"? extern crate rocket;
I thought "extern crate XYZ" was old-style? "use XYZ"? #[macro_use]
for when you want to easily import all of the macros from a crate across your entire project. But yes, you could do use rocket::{get, routes};
instead.