1 error[E0308]: mismatched types
2 --> $DIR/macro-brackets.rs:11:21
4 LL | id![static X: u32 = 'a';];
5 | ^^^ expected `u32`, found `char`
7 help: you can cast a `char` to a `u32`, since a `char` always occupies 4 bytes
9 LL | id![static X: u32 = 'a' as u32;];
12 error: aborting due to previous error
14 For more information about this error, try `rustc --explain E0308`.