1 error[E0277]: the trait bound `Error: std::cmp::Eq` is not satisfied
2 --> $DIR/derives-span-Eq-enum.rs:13:6
5 | ^^^^^ the trait `std::cmp::Eq` is not implemented for `Error`
7 = note: required by `std::cmp::AssertParamIsEq`
8 = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0277`.