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error[E0277]: the trait bound `A: Copy` is not satisfied
--> $DIR/wf-struct-field.rs:12:11
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LL | data: IsCopy<A>
| ^^^^^^^^^ the trait `Copy` is not implemented for `A`
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note: required by a bound in `IsCopy`
--> $DIR/wf-struct-field.rs:7:17
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LL | struct IsCopy<T:Copy> {
| ^^^^ required by this bound in `IsCopy`
help: consider restricting type parameter `A` with trait `Copy`
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LL | struct SomeStruct<A: std::marker::Copy> {
| +++++++++++++++++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.
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