| error[E0720]: cannot resolve opaque type | |
| --> $DIR/where-allowed-2.rs:6:30 | |
| | | |
| LL | fn in_adt_in_return() -> Vec<impl Debug> { panic!() } | |
| | ^^^^^^^^^^ -------- this returned value is of `!` type | |
| | | | |
| | cannot resolve opaque type | |
| | | |
| = help: this error will resolve once the item's body returns a concrete type | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0720`. |