error: `while...else` loops are not supported --> $DIR/while-else-let-else-err.rs:4:7 | LL | let _ = while false { | ----- `else` is attached to this loop LL | LL | } else { | _______^ LL | | LL | | LL | | }; | |_____^ | = note: consider moving this `else` clause to a separate `if` statement and use a `bool` variable to control if it should run error: aborting due to previous error