error: usage of `&String::new()` for a function expecting a `&str` argument
  --> $DIR/unnecessary_owned_empty_strings.rs:12:22
   |
LL |     ref_str_argument(&String::new());
   |                      ^^^^^^^^^^^^^^ help: try: `""`
   |
   = note: `-D clippy::unnecessary-owned-empty-strings` implied by `-D warnings`

error: usage of `&String::from("")` for a function expecting a `&str` argument
  --> $DIR/unnecessary_owned_empty_strings.rs:16:22
   |
LL |     ref_str_argument(&String::from(""));
   |                      ^^^^^^^^^^^^^^^^^ help: try: `""`

error: aborting due to 2 previous errors