error: invalid fragment specifier `t_ty` --> $DIR/issue-21356.rs:13:22 | LL | macro_rules! test { ($wrong:t_ty ..) => () } | ^^^^^^^^^^^ | = help: valid fragment specifiers are `ident`, `block`, `stmt`, `expr`, `pat`, `ty`, `lifetime`, `literal`, `path`, `meta`, `tt`, `item` and `vis` error: aborting due to previous error