1 error[E0277]: the size for values of type `(dyn I + 'static)` cannot be known at compilation time
2 --> $DIR/issue-5035-2.rs:14:8
5 | ^^ doesn't have a size known at compile-time
7 = help: the trait `std::marker::Sized` is not implemented for `(dyn I + 'static)`
8 = note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-sized>
9 = note: all local variables must have a statically known size
11 error: aborting due to previous error
13 For more information about this error, try `rustc --explain E0277`.