Quick Tip: You don't need to create a new cargo project if you want to test if something works in rust

When I'm working with rust, sometimes I'd want to check if something works and I'd either create a new cargo project in a temporary directory or run to the playground.

I always assumed that cargo passed a lot of esoteric options to rustc even for simple programs without any dependencies but I was wrong.

rustc foo.rs

is all you need!