| error: item does not constrain `Foo::{opaque#0}` | |
| --> $DIR/nested.rs:11:4 | |
| | | |
| LL | fn bar() -> Bar { | |
| | ^^^ | |
| | | |
| = note: consider removing `#[define_opaque]` or adding an empty `#[define_opaque()]` | |
| note: this opaque type is supposed to be constrained | |
| --> $DIR/nested.rs:3:12 | |
| | | |
| LL | type Foo = impl std::fmt::Debug; | |
| | ^^^^^^^^^^^^^^^^^^^^ | |
| error[E0277]: `Bar` doesn't implement `Debug` | |
| --> $DIR/nested.rs:17:22 | |
| | | |
| LL | println!("{:?}", bar()); | |
| | ---- ^^^^^ `Bar` cannot be formatted using `{:?}` because it doesn't implement `Debug` | |
| | | | |
| | required by this formatting parameter | |
| | | |
| = help: the trait `Debug` is not implemented for `Bar` | |
| error: aborting due to 2 previous errors | |
| For more information about this error, try `rustc --explain E0277`. |