1 error[E0277]: the trait bound `Error: Eq` is not satisfied
2 --> $DIR/derives-span-Eq-tuple-struct.rs:8:5
4 LL | #[derive(Eq,PartialEq)]
5 | -- in this derive macro expansion
8 | ^^^^^ the trait `Eq` is not implemented for `Error`
10 note: required by a bound in `AssertParamIsEq`
11 --> $SRC_DIR/core/src/cmp.rs:LL:COL
12 = note: this error originates in the derive macro `Eq` (in Nightly builds, run with -Z macro-backtrace for more info)
13 help: consider annotating `Error` with `#[derive(Eq)]`
18 error: aborting due to previous error
20 For more information about this error, try `rustc --explain E0277`.