error[E0080]: evaluation of constant value failed --> $DIR/union-ice.rs:14:33 | LL | const FIELD3: Field3 = unsafe { UNION.field3 }; | ^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: evaluation of constant value failed --> $DIR/union-ice.rs:20:17 | LL | b: unsafe { UNION.field3 }, | ^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: evaluation of constant value failed --> $DIR/union-ice.rs:33:18 | LL | unsafe { UNION.field3 }, | ^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0080`.