1 error[E0600]: cannot apply unary operator `!` to type `BytePos`
2 --> $DIR/issue-14091-2.rs:25:5
5 | ^^^^^^^^^^^^^^ cannot apply unary operator `!`
7 = note: an implementation of `std::ops::Not` might be missing for `BytePos`
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0600`.