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error[E0107]: missing generics for struct `Vec`
--> $DIR/issue-92305.rs:5:45
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LL | fn f<T>(data: &[T]) -> impl Iterator<Item = Vec> {
| ^^^ expected at least 1 generic argument
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note: struct defined here, with at least 1 generic parameter: `T`
--> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL
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LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> {
| ^^^ -
help: add missing generic argument
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LL | fn f<T>(data: &[T]) -> impl Iterator<Item = Vec<T>> {
| ~~~~~~
error: aborting due to previous error
For more information about this error, try `rustc --explain E0107`.
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