Adding #[derive(From)] to Rust

TL;DR: #[derive(From)] can be used in nightly now. See here on how to use it. You can follow this tracking issue for more updates. I use the newtype pattern in Rust a lot, and I would like to make certain use-cases around it (even) simpler to express. A typical thing to do with newtypes is that you implement a bunch of standard traits for them, which will delegate to the inner field. The easiest w