error: the borrowed expression implements the required traits
  --> hitbox-backend/src/key.rs:25:37
   |
25 |         serde_urlencoded::to_string(&parts).map_err(|err| SerializerError::Serialize(Box::new(err)))
   |                                     ^^^^^^ help: change this to: `parts`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
   = note: `-D clippy::needless-borrow` implied by `-D warnings`