error: deref on an immutable reference
  --> $DIR/borrow_deref_ref_unfixable.rs:9:23
   |
LL |         let x: &str = &*s;
   |                       ^^^
   |
   = note: `-D clippy::borrow-deref-ref` implied by `-D warnings`
help: if you would like to reborrow, try removing `&*`
   |
LL |         let x: &str = s;
   |                       ~
help: if you would like to deref, try using `&**`
   |
LL |         let x: &str = &**s;
   |                       ~~~~

error: aborting due to previous error