yosh

I wish Rust has a `debug!()` macro which just takes arguments like `console.log()`. Typing `println!("{:?} {:?}", foo, bar)` over and over makes for a poor experience :(

I mean like: stdlib, default level import. Printing stuff out to the console is such an integral part of development. Another improvment that could be made to improve ergonomics: allow `cargo test` to accept `--nocapture`. `$ cargo test -- --nocapture` is rather unintuitive.