error[E0391]: cycle detected when computing the super predicates of `Chromosome` --> $DIR/cycle-trait-supertrait-direct.rs:3:19 | LL | trait Chromosome: Chromosome { | ^^^^^^^^^^ | = note: ...which immediately requires computing the super predicates of `Chromosome` again 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 | | } | |_^ = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information error: aborting due to previous error For more information about this error, try `rustc --explain E0391`.