[Rust] Rocket (HTTP Server Freamwork) 설정
https://rocket.rs/v0.4/guide/quickstart/ Quickstart - Rocket Programming Guide Before you can start writing a Rocket application, you'll need a nightly version of Rust installed. We recommend you use rustup to install or configure such a version. If you don't have Rust installed and would like extra guidance doing so, see the getting rocket.rs rustup default nightly rustup override set nightly c..