error[E0637]: `&` without an explicit lifetime name cannot be used here --> $DIR/ice-cannot-relate-region-109178.rs:7:31 | LL | struct Changes | ^ explicit lifetime name needed here error[E0637]: `&` without an explicit lifetime name cannot be used here --> $DIR/ice-cannot-relate-region-109178.rs:12:21 | LL | impl Changes where [(); CHANGES.len()]: {} | ^ explicit lifetime name needed here error[E0637]: `&` without an explicit lifetime name cannot be used here --> $DIR/ice-cannot-relate-region-109178.rs:12:23 | LL | impl Changes where [(); CHANGES.len()]: {} | ^ explicit lifetime name needed here error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0637`.