error: unexpected close delimiter: `)`
  --> $DIR/invalid-punct-ident-4.rs:6:1
   |
LL | lexer_failure!();
   | ^^^^^^^^^^^^^^^^^
   | |
   | unexpected close delimiter
   | in this macro invocation

error: proc macro panicked
  --> $DIR/invalid-punct-ident-4.rs:6:1
   |
LL | lexer_failure!();
   | ^^^^^^^^^^^^^^^^^

error: aborting due to 2 previous errors