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error[E0308]: mismatched types
--> $DIR/issue-57673-ice-on-deref-of-boxed-trait.rs:5:5
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LL | fn ice(x: Box<dyn Iterator<Item=()>>) {
| - help: try adding a return type: `-> (dyn Iterator<Item = ()> + 'static)`
LL | *x
| ^^ expected `()`, found `dyn Iterator`
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= note: expected unit type `()`
found trait object `(dyn Iterator<Item = ()> + 'static)`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0308`.
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