error: `to_string()` called on a `&str`
  --> tests/ui/str_to_string.rs:4:17
   |
LL |     let hello = "hello world".to_string();
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"hello world".to_owned()`
   |
   = note: `-D clippy::str-to-string` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::str_to_string)]`

error: `to_string()` called on a `&str`
  --> tests/ui/str_to_string.rs:7:5
   |
LL |     msg.to_string();
   |     ^^^^^^^^^^^^^^^ help: try: `msg.to_owned()`

error: aborting due to 2 previous errors