warning: the borrowed expression implements the required traits
 --> build.rs:5:18
  |
5 |     config.bytes(&["."]);
  |                  ^^^^^^ help: change this to: `["."]`
  |
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrows_for_generic_args
  = note: `#[warn(clippy::needless_borrows_for_generic_args)]` on by default