error[E0382]: use of moved value: `t` --> $DIR/borrowck-move-moved-value-into-closure.rs:11:12 | LL | let t: Box<_> = Box::new(3); | - move occurs because `t` has type `Box`, which does not implement the `Copy` trait LL | LL | call_f(move|| { *t + 1 }); | ------ -- variable moved due to use in closure | | | value moved into closure here LL | call_f(move|| { *t + 1 }); | ^^^^^^ -- use occurs due to use in closure | | | value used here after move error: aborting due to previous error For more information about this error, try `rustc --explain E0382`.