1 error: no rules expected the token `_`
2 --> $DIR/underscore-ident-matcher.rs:18:19
4 LL | macro_rules! identity {
5 | --------------------- when calling this macro
7 LL | let identity!(_) = 10; //~ ERROR no rules expected the token `_`
8 | ^ no rules expected the token `_`
10 error: aborting due to previous error