error[E0119]: conflicting implementations of trait `Trait` for type `for<'a, 'b> fn(&'a u32, &'b u32)`
  --> $DIR/coherence-fn-inputs.rs:15:1
   |
LL | impl Trait for for<'a, 'b> fn(&'a u32, &'b u32) {}
   | ----------------------------------------------- first implementation here
LL | impl Trait for for<'c> fn(&'c u32, &'c u32) {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `for<'a, 'b> fn(&'a u32, &'b u32)`
   |
   = note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details

error: aborting due to previous error

For more information about this error, try `rustc --explain E0119`.