error[E0716]: temporary value dropped while borrowed --> $DIR/issue-36082.rs:9:19 | LL | let val: &_ = x.borrow().0; | ^^^^^^^^^^ - temporary value is freed at the end of this statement | | | creates a temporary which is freed while still in use ... LL | println!("{}", val); | --- borrow later used here | help: consider using a `let` binding to create a longer lived value | LL ~ let binding = x.borrow(); LL ~ let val: &_ = binding.0; | error: aborting due to previous error For more information about this error, try `rustc --explain E0716`.