error[E0425]: cannot find value `bar` in this scope
  --> $DIR/not_wf_param_in_rpitit.rs:3:34
   |
LL | trait Trait<const N: dyn Trait = bar> {
   |                                  ^^^ not found in this scope

error[E0391]: cycle detected when computing type of `Trait::N`
  --> $DIR/not_wf_param_in_rpitit.rs:3:26
   |
LL | trait Trait<const N: dyn Trait = bar> {
   |                          ^^^^^
   |
   = note: ...which immediately requires computing type of `Trait::N` again
note: cycle used when computing explicit predicates of trait `Trait`
  --> $DIR/not_wf_param_in_rpitit.rs:3:1
   |
LL | trait Trait<const N: dyn Trait = bar> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0391, E0425.
For more information about an error, try `rustc --explain E0391`.