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error: expected attribute arguments in parentheses: #[error(...)]
--> tests/ui/fallback-impl-with-display.rs:5:3
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5 | #[error]
| ^^^^^
error[E0119]: conflicting implementations of trait `std::fmt::Display` for type `MyError`
--> tests/ui/fallback-impl-with-display.rs:4:10
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4 | #[derive(Error, Debug)]
| ^^^^^ conflicting implementation for `MyError`
...
8 | impl Display for MyError {
| ------------------------ first implementation here
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= note: this error originates in the derive macro `Error` (in Nightly builds, run with -Z macro-backtrace for more info)
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