| error[E0391]: cycle detected when computing the supertraits of `T` |
| --> $DIR/issue-20772.rs:1:1 |
| | |
| LL | / trait T : Iterator<Item=Self::Item> |
| LL | | |
| LL | | {} |
| | |__^ |
| | |
| = note: ...which again requires computing the supertraits of `T`, completing the cycle |
| note: cycle used when collecting item types in top-level module |
| --> $DIR/issue-20772.rs:1:1 |
| | |
| LL | / trait T : Iterator<Item=Self::Item> |
| LL | | |
| LL | | {} |
| | |__^ |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0391`. |