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error[E0072]: recursive type `ElemDerived` has infinite size
--> $DIR/issue-72554.rs:4:1
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LL | pub enum ElemDerived {
| ^^^^^^^^^^^^^^^^^^^^ recursive type has infinite size
...
LL | A(ElemDerived)
| ----------- recursive without indirection
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help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `ElemDerived` representable
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LL | A(Box<ElemDerived>)
| ++++ +
error[E0391]: cycle detected when computing drop-check constraints for `ElemDerived`
--> $DIR/issue-72554.rs:4:1
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LL | pub enum ElemDerived {
| ^^^^^^^^^^^^^^^^^^^^
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= note: ...which immediately requires computing drop-check constraints for `ElemDerived` again
note: cycle used when computing drop-check constraints for `Elem`
--> $DIR/issue-72554.rs:11:1
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LL | pub enum Elem {
| ^^^^^^^^^^^^^
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0072, E0391.
For more information about an error, try `rustc --explain E0072`.
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