src/tools/clippy/tests/ui/mut_reference.stderr

   1 error: The function/method `takes_an_immutable_reference` doesn't need a mutable reference
   2   --> $DIR/mut_reference.rs:22:34
   3    |
   4 22 |     takes_an_immutable_reference(&mut 42);
   5    |                                  ^^^^^^^
   6    |
   7    = note: `-D unnecessary-mut-passed` implied by `-D warnings`
   8
   9 error: The function/method `as_ptr` doesn't need a mutable reference
  10   --> $DIR/mut_reference.rs:24:12
  11    |
  12 24 |     as_ptr(&mut 42);
  13    |            ^^^^^^^
  14
  15 error: The function/method `takes_an_immutable_reference` doesn't need a mutable reference
  16   --> $DIR/mut_reference.rs:28:44
  17    |
  18 28 |     my_struct.takes_an_immutable_reference(&mut 42);
  19    |                                            ^^^^^^^
  20