error: type parameter `T` goes unused in function definition
  --> $DIR/extra_unused_type_parameters_unfixable.rs:3:24
   |
LL | fn unused_where_clause<T, U>(x: U)
   |                        ^
   |
   = help: consider removing the parameter
   = note: `-D clippy::extra-unused-type-parameters` implied by `-D warnings`

error: type parameters go unused in function definition: T, V
  --> $DIR/extra_unused_type_parameters_unfixable.rs:10:30
   |
LL | fn unused_multi_where_clause<T, U, V: Default>(x: U)
   |                              ^     ^^^^^^^^^^
   |
   = help: consider removing the parameters

error: type parameters go unused in function definition: T, U, V
  --> $DIR/extra_unused_type_parameters_unfixable.rs:17:28
   |
LL | fn unused_all_where_clause<T, U: Default, V: Default>()
   |                            ^  ^^^^^^^^^^  ^^^^^^^^^^
   |
   = help: consider removing the parameters

error: aborting due to 3 previous errors