error[E0106]: missing lifetime specifier --> $DIR/item-error.rs:10:8 | LL | a: &u64 | ^ expected named lifetime parameter | help: consider introducing a named lifetime parameter | LL ~ struct A<'a> { LL ~ a: &'a u64 | error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0106`.