BTW if you have read about the `Try` trait before and are wondering what `ControlFlow` is, read it again: https://doc.rust-lang.org/nightly/std/ops/trait.Try.ht

BTW if you have read about the `Try` trait before and are wondering what `ControlFlow` is, read it again: https://doc.rust-lang.org/nightly/std/ops/trait.Try.html https://doc.rust-lang.org/nightly/std/ops/trait.Try.html `Try` was recently changed significantly with the introduction of `ControlFlow`. IMO it's a big improvement.