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trait Trait {
type Output;
}
impl Trait for () {
type Output = i32;
}
struct Struct<F>(F);
impl<F> Struct<F> {
pub fn new(_: F) -> Self {
todo!()
}
}
fn main() {
let _do_not_waste: Struct<impl Trait<Output = i32>> = Struct::new(());
//~^ `impl Trait` only allowed in function and inherent method argument and return types
}
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