error: expected lifetime, type, or constant, found keyword `const`
  --> $DIR/issue-89013.rs:9:14
   |
LL | impl Foo<N = const 3> for Bar {
   |              ^^^^^
   |
help: the `const` keyword is only needed in the definition of the type
   |
LL - impl Foo<N = const 3> for Bar {
LL + impl Foo<N = 3> for Bar {
   |

error[E0658]: associated const equality is incomplete
  --> $DIR/issue-89013.rs:9:10
   |
LL | impl Foo<N = const 3> for Bar {
   |          ^^^^^^^^^^^
   |
   = note: see issue #92827 <https://github.com/rust-lang/rust/issues/92827> for more information
   = help: add `#![feature(associated_const_equality)]` to the crate attributes to enable

error[E0107]: this trait takes 1 generic argument but 0 generic arguments were supplied
  --> $DIR/issue-89013.rs:9:6
   |
LL | impl Foo<N = const 3> for Bar {
   |      ^^^ expected 1 generic argument
   |
note: trait defined here, with 1 generic parameter: `N`
  --> $DIR/issue-89013.rs:1:7
   |
LL | trait Foo<const N: usize> {
   |       ^^^ --------------
help: add missing generic argument
   |
LL | impl Foo<N, N = const 3> for Bar {
   |          ++

error[E0229]: associated type bindings are not allowed here
  --> $DIR/issue-89013.rs:9:10
   |
LL | impl Foo<N = const 3> for Bar {
   |          ^^^^^^^^^^^ associated type not allowed here

error: aborting due to 4 previous errors

Some errors have detailed explanations: E0107, E0229, E0658.
For more information about an error, try `rustc --explain E0107`.