// run-rustfix use std::net::TcpListener; struct NoToSocketAddrs(String); impl std::ops::Deref for NoToSocketAddrs { type Target = String; fn deref(&self) -> &Self::Target { &self.0 } } fn main() { let _works = TcpListener::bind("some string"); let bad = NoToSocketAddrs("bad".to_owned()); let _errors = TcpListener::bind(&*bad); //~^ ERROR the trait bound `NoToSocketAddrs: ToSocketAddrs` is not satisfied }