error: this file contains an unclosed delimiter --> $DIR/issue-62554.rs:5:89 | LL | fn foo(u: u8) { if u8 macro_rules! u8 { (u6) => { fn uuuuuuuuuuu() { use s loo mod u8 { | - - - - -^ | | | | | | | | | | | unclosed delimiter | | | | unclosed delimiter | | | unclosed delimiter | unclosed delimiter unclosed delimiter error: aborting due to 1 previous error