error[E0106]: missing lifetime specifier --> $DIR/regions-in-enums-anon.rs:4:9 | LL | Bar(&isize) | ^ expected named lifetime parameter | help: consider introducing a named lifetime parameter | LL ~ enum Foo<'a> { LL ~ Bar(&'a isize) | error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0106`.