#![feature(nll)]

trait MyTrait {}

struct Foo {}

impl MyTrait for Foo {}

struct Bar<'a> {
    things: Vec<&'a MyTrait>,
}

impl<'a> MyTrait for Bar<'a> {}

fn main() {
    let bar = Bar {
        things: vec![&Foo {}, &Bar { things: vec![] }],
    };
}