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error[E0204]: the trait `Copy` cannot be implemented for this type
--> $DIR/deep-bad-copy-reason.rs:33:24
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LL | pub struct List<'tcx, T>(Interned<'tcx, ListS<T>>);
| ------------------------ this field does not implement `Copy`
...
LL | impl<'tcx, T> Copy for List<'tcx, T> {}
| ^^^^^^^^^^^^^
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note: the `Copy` impl for `Interned<'tcx, ListS<T>>` requires that `OpaqueListContents: Sized`
--> $DIR/deep-bad-copy-reason.rs:23:26
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LL | pub struct List<'tcx, T>(Interned<'tcx, ListS<T>>);
| ^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0204`.
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