error[E0391]: cycle detected when computing the bounds for type parameter `T` --> $DIR/cycle-projection-based-on-where-clause.rs:17:19 | LL | T : Add | ^^^^^^^ | = note: ...which again requires computing the bounds for type parameter `T`, completing the cycle note: cycle used when processing `A` --> $DIR/cycle-projection-based-on-where-clause.rs:17:19 | LL | T : Add | ^^^^^^^ error[E0220]: associated type `Item` not found for `T` --> $DIR/cycle-projection-based-on-where-clause.rs:17:19 | LL | T : Add | ^^^^^^^ associated type `Item` not found error: aborting due to 2 previous errors Some errors occurred: E0220, E0391. For more information about an error, try `rustc --explain E0220`.