RT @asaaki: #FollowerPower serde, Cow<'a, str>, borrowed vs owned; see updated play/gist with question/comments: https://play.rust-lang.org/?gist=23269b680053cbada0f7f9b9d0ae8f65&version=stable&mode=debug
A… source: https://twitter.com/rustlang/status/1012288654952292353