error: using `println!("")` --> $DIR/println_empty_string.rs:3:5 | 3 | println!(""); | ^^^^^^^^^^^^ help: replace it with: `println!()` | = note: `-D println-empty-string` implied by `-D warnings` error: using `println!("")` --> $DIR/println_empty_string.rs:6:14 | 6 | _ => println!(""), | ^^^^^^^^^^^^ help: replace it with: `println!()` error: aborting due to 2 previous errors