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use std::cell::RefCell;
use std::io::Read;
fn main() {}
fn inner(mut foo: &[u8]) {
let refcell = RefCell::new(&mut foo);
//~^ ERROR `foo` does not live long enough
let read = &refcell as &RefCell<dyn Read>;
//~^ ERROR lifetime may not live long enough
read_thing(read);
}
fn read_thing(refcell: &RefCell<dyn Read>) {}
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