error: comparing with a non-unique address of a function item
  --> tests/ui/fn_address_comparisons.rs:15:13
   |
LL |     let _ = f == a;
   |             ^^^^^^
   |
   = note: `-D clippy::fn-address-comparisons` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::fn_address_comparisons)]`

error: comparing with a non-unique address of a function item
  --> tests/ui/fn_address_comparisons.rs:18:13
   |
LL |     let _ = f != a;
   |             ^^^^^^

error: aborting due to 2 previous errors