1 error: concrete type differs from previous defining opaque type use
2 --> $DIR/generic_different_defining_uses.rs:12:5
4 LL | Some(t).into_iter()
5 | ^^^^^^^^^^^^^^^^^^^ expected `std::iter::Once<T>`, got `std::option::IntoIter<T>`
7 note: previous use here
8 --> $DIR/generic_different_defining_uses.rs:8:5
10 LL | std::iter::once(t)
13 error: aborting due to previous error