error[E0119]: conflicting implementations of trait `ParseError>` for type `LocatedTestError<'_>` --> tests/trybuild/06-from-nom-multiple.rs:14:10 | 14 | #[derive(LocatedError, Eq, PartialEq, Debug, Clone)] | ^^^^^^^^^^^^ | | | first implementation here | conflicting implementation for `LocatedTestError<'_>` | = note: this error originates in the derive macro `LocatedError` (in Nightly builds, run with -Z macro-backtrace for more info)