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error[E0277]: the trait bound `String: Copy` is not satisfied
--> $DIR/trait-error.rs:5:6
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LL | [Foo(String::new()); 4];
| ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `String`
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note: required for `Foo<String>` to implement `Copy`
--> $DIR/trait-error.rs:1:10
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LL | #[derive(Copy, Clone)]
| ^^^^ unsatisfied trait bound introduced in this `derive` macro
= note: the `Copy` trait is required because this value will be copied for each element of the array
= help: consider creating a new `const` item and initializing it with the result of the function call to be used in the repeat position, like `const VAL: Type = const_fn();` and `let x = [VAL; 42];`
= help: create an inline `const` block, see RFC #2920 <https://github.com/rust-lang/rfcs/pull/2920> for more information
= note: this error originates in the derive macro `Copy` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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