error: `0 as *const _` detected
  --> $DIR/zero_ptr.rs:4:13
   |
LL |     let _ = 0 as *const usize;
   |             ^^^^^^^^^^^^^^^^^ help: try: `std::ptr::null::<usize>()`
   |
   = note: `-D clippy::zero-ptr` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::zero_ptr)]`

error: `0 as *mut _` detected
  --> $DIR/zero_ptr.rs:5:13
   |
LL |     let _ = 0 as *mut f64;
   |             ^^^^^^^^^^^^^ help: try: `std::ptr::null_mut::<f64>()`

error: `0 as *const _` detected
  --> $DIR/zero_ptr.rs:6:24
   |
LL |     let _: *const u8 = 0 as *const _;
   |                        ^^^^^^^^^^^^^ help: try: `std::ptr::null()`

error: `0 as *const _` detected
  --> $DIR/zero_ptr.rs:9:9
   |
LL |     foo(0 as *const _, 0 as *mut _);
   |         ^^^^^^^^^^^^^ help: try: `std::ptr::null()`

error: `0 as *mut _` detected
  --> $DIR/zero_ptr.rs:9:24
   |
LL |     foo(0 as *const _, 0 as *mut _);
   |                        ^^^^^^^^^^^ help: try: `std::ptr::null_mut()`

error: aborting due to 5 previous errors