error: `impl Trait` used as a function parameter
  --> $DIR/ice-11803.rs:5:54
   |
LL | pub fn g<T: IntoIterator<Item = impl Iterator<Item = impl Clone>>>() {
   |                                                      ^^^^^^^^^^
   |
   = note: `-D clippy::impl-trait-in-params` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::impl_trait_in_params)]`
help: add a type parameter
   |
LL | pub fn g<T: IntoIterator<Item = impl Iterator<Item = impl Clone>>, { /* Generic name */ }: Clone>() {
   |                                                                  +++++++++++++++++++++++++++++++

error: `impl Trait` used as a function parameter
  --> $DIR/ice-11803.rs:5:33
   |
LL | pub fn g<T: IntoIterator<Item = impl Iterator<Item = impl Clone>>>() {
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
help: add a type parameter
   |
LL | pub fn g<T: IntoIterator<Item = impl Iterator<Item = impl Clone>>, { /* Generic name */ }: Iterator<Item = impl Clone>>() {
   |                                                                  +++++++++++++++++++++++++++++++++++++++++++++++++++++

error: aborting due to 2 previous errors