error: explicit deref method call
  --> $DIR/dereference.rs:13:23
   |
13 |         let b: &str = a.deref();
   |                       ^^^^^^^^^ help: try this: `&*a`
   |
   = note: `-D clippy::explicit-deref-method` implied by `-D warnings`

error: explicit deref_mut method call
  --> $DIR/dereference.rs:17:27
   |
17 |         let b: &mut str = a.deref_mut();
   |                           ^^^^^^^^^^^^^ help: try this: `&mut *a`

error: explicit deref method call
  --> $DIR/dereference.rs:21:25
   |
21 |         let b: String = a.deref().clone();
   |                         ^^^^^^^^^ help: try this: `&*a`

error: explicit deref_mut method call
  --> $DIR/dereference.rs:25:24
   |
25 |         let b: usize = a.deref_mut().len();
   |                        ^^^^^^^^^^^^^ help: try this: `&mut *a`

error: explicit deref method call
  --> $DIR/dereference.rs:29:26
   |
29 |         let b: &usize = &a.deref().len();
   |                          ^^^^^^^^^ help: try this: `&*a`

error: explicit deref method call
  --> $DIR/dereference.rs:34:23
   |
34 |         let b: &str = a.deref().deref();
   |                       ^^^^^^^^^ help: try this: `&*a`

error: explicit deref method call
  --> $DIR/dereference.rs:39:43
   |
39 |         let b: String = format!("{}, {}", a.deref(), a.deref());
   |                                           ^^^^^^^^^ help: try this: `&*a`

error: explicit deref method call
  --> $DIR/dereference.rs:39:54
   |
39 |         let b: String = format!("{}, {}", a.deref(), a.deref());
   |                                                      ^^^^^^^^^ help: try this: `&*a`

error: aborting due to 8 previous errors