error[E0391]: cycle detected when processing `Y::A::{{constant}}` --> $DIR/issue-23302-2.rs:14:9 | LL | A = Y::B as isize, //~ ERROR E0391 | ^^^^^^^^^^^^^ | = note: ...which again requires processing `Y::A::{{constant}}`, completing the cycle note: cycle used when const-evaluating `Y::A::{{constant}}` --> $DIR/issue-23302-2.rs:14:9 | LL | A = Y::B as isize, //~ ERROR E0391 | ^^^^^^^^^^^^^ error: aborting due to previous error For more information about this error, try `rustc --explain E0391`.