error[E0080]: evaluation of constant value failed --> $DIR/const-err-enum-discriminant.rs:8:21 | LL | Boo = [unsafe { Foo { b: () }.a }; 4][3], | ^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0080`.