error: '`impl Trait` used as a function parameter'
  --> $DIR/impl_trait_in_params.rs:8:13
   |
LL | pub fn a(_: impl Trait) {}
   |             ^^^^^^^^^^
   |
   = note: `-D clippy::impl-trait-in-params` implied by `-D warnings`
help: add a type parameter
   |
LL | pub fn a<{ /* Generic name */ }: Trait>(_: impl Trait) {}
   |         +++++++++++++++++++++++++++++++

error: '`impl Trait` used as a function parameter'
  --> $DIR/impl_trait_in_params.rs:11:29
   |
LL | pub fn c<C: Trait>(_: C, _: impl Trait) {}
   |                             ^^^^^^^^^^
   |
help: add a type parameter
   |
LL | pub fn c<C: Trait, { /* Generic name */ }: Trait>(_: C, _: impl Trait) {}
   |                  +++++++++++++++++++++++++++++++

error: aborting due to 2 previous errors