error: call to `core::mem::swap` with a parameter derived from a raw pointer
  --> $DIR/swap_ptr_to_ref.rs:13:9
   |
LL |         core::mem::swap(&mut *y, &mut *z);
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use ptr::swap: `core::ptr::swap(y, z)`
   |
   = note: `-D clippy::swap-ptr-to-ref` implied by `-D warnings`

error: call to `core::mem::swap` with a parameter derived from a raw pointer
  --> $DIR/swap_ptr_to_ref.rs:14:9
   |
LL |         core::mem::swap(&mut *y, &mut x);
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use ptr::swap: `core::ptr::swap(y, &mut x)`

error: call to `core::mem::swap` with a parameter derived from a raw pointer
  --> $DIR/swap_ptr_to_ref.rs:15:9
   |
LL |         core::mem::swap(&mut x, &mut *y);
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use ptr::swap: `core::ptr::swap(&mut x, y)`

error: call to `core::mem::swap` with a parameter derived from a raw pointer
  --> $DIR/swap_ptr_to_ref.rs:16:9
   |
LL |         core::mem::swap(&mut *addr_of_mut!(x), &mut *addr_of_mut!(x));
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use ptr::swap: `core::ptr::swap(addr_of_mut!(x), addr_of_mut!(x))`

error: aborting due to 4 previous errors