error[E0391]: cycle detected when computing the super predicates of `Chromosome` --> $DIR/cycle-trait-supertrait-direct.rs:3:1 | LL | trait Chromosome: Chromosome { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: ...which requires computing the super traits of `Chromosome`... --> $DIR/cycle-trait-supertrait-direct.rs:3:19 | LL | trait Chromosome: Chromosome { | ^^^^^^^^^^ = note: ...which again requires computing the super predicates of `Chromosome`, completing the cycle note: cycle used when collecting item types in top-level module --> $DIR/cycle-trait-supertrait-direct.rs:3:1 | LL | / trait Chromosome: Chromosome { LL | | LL | | } | |_^ error: aborting due to previous error For more information about this error, try `rustc --explain E0391`.