| error[E0700]: hidden type for `impl Sized + 'a` captures lifetime that does not appear in bounds |
| --> $DIR/rpit-hidden-erased-unsoundness.rs:16:5 |
| | |
| LL | fn step2<'a, 'b: 'a>() -> impl Sized + 'a { |
| | -- --------------- opaque type defined here |
| | | |
| | hidden type `impl Captures<'b> + 'a` captures the lifetime `'b` as defined here |
| LL | step1::<'a, 'b>() |
| | ^^^^^^^^^^^^^^^^^ |
| | |
| help: to declare that `impl Sized + 'a` captures `'b`, you can add an explicit `'b` lifetime bound |
| | |
| LL | fn step2<'a, 'b: 'a>() -> impl Sized + 'a + 'b { |
| | ++++ |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0700`. |
