| error[E0720]: cannot resolve opaque type |
| --> $DIR/recursive-generator.rs:5:13 |
| | |
| LL | fn foo() -> impl Generator<Yield = (), Return = ()> { |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ recursive opaque type |
| ... |
| LL | / || { |
| LL | | |
| LL | | let mut gen = Box::pin(foo()); |
| | | ------- generator captures itself here |
| LL | | |
| ... | |
| LL | | } |
| LL | | } |
| | |_____- returning here with type `[generator@$DIR/recursive-generator.rs:9:5: 9:7]` |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0720`. |