Code shared from the Rust Playground

playground.rs

struct MyStruct<TCollection>
where
    for<'a> &'a TCollection: IntoIterator<Item = &'a ()>,
{
    references: TCollection,
}

impl<TCollection> Drop for MyStruct<TCollection>
where
    for<'b> &'b TCollection: IntoIterator<Item = &'b ()>,
{
    fn drop(&mut self) {
        for reference in &self.references {}
    }
}

fn main() {
    let _ = MyStruct {
        references: Vec::new(),
    };
}