tests/ui/unboxed-closures/unboxed-closure-illegal-move.stderr

error[E0507]: cannot move out of `x`, a captured variable in an `Fn` closure
  --> $DIR/unboxed-closure-illegal-move.rs:15:31
   |
LL |         let x = Box::new(0);
   |             -   ----------- move occurs because `x` has type `Box<i32>`, which does not implement the `Copy` trait
   |             |
   |             captured outer variable
LL |         let f = to_fn(|| drop(x));
   |                       --      ^ `x` is moved here
   |                       |
   |                       captured by this `Fn` closure
   |
help: `Fn` and `FnMut` closures require captured values to be able to be consumed multiple times, but `FnOnce` closures may consume them only once
  --> $DIR/unboxed-closure-illegal-move.rs:7:33
   |
LL | fn to_fn<A:std::marker::Tuple,F:Fn<A>>(f: F) -> F { f }
   |                                 ^^^^^
help: consider cloning the value if the performance cost is acceptable
   |
LL |         let f = to_fn(|| drop(x.clone()));
   |                                ++++++++

error[E0507]: cannot move out of `x`, a captured variable in an `FnMut` closure
  --> $DIR/unboxed-closure-illegal-move.rs:19:35
   |
LL |         let x = Box::new(0);
   |             -   ----------- move occurs because `x` has type `Box<i32>`, which does not implement the `Copy` trait
   |             |
   |             captured outer variable
LL |         let f = to_fn_mut(|| drop(x));
   |                           --      ^ `x` is moved here
   |                           |
   |                           captured by this `FnMut` closure
   |
help: `Fn` and `FnMut` closures require captured values to be able to be consumed multiple times, but `FnOnce` closures may consume them only once
  --> $DIR/unboxed-closure-illegal-move.rs:8:37
   |
LL | fn to_fn_mut<A:std::marker::Tuple,F:FnMut<A>>(f: F) -> F { f }
   |                                     ^^^^^^^^
help: consider cloning the value if the performance cost is acceptable
   |
LL |         let f = to_fn_mut(|| drop(x.clone()));
   |                                    ++++++++

error[E0507]: cannot move out of `x`, a captured variable in an `Fn` closure
  --> $DIR/unboxed-closure-illegal-move.rs:28:36
   |
LL |         let x = Box::new(0);
   |             -   ----------- move occurs because `x` has type `Box<i32>`, which does not implement the `Copy` trait
   |             |
   |             captured outer variable
LL |         let f = to_fn(move || drop(x));
   |                       -------      ^ `x` is moved here
   |                       |
   |                       captured by this `Fn` closure
   |
help: `Fn` and `FnMut` closures require captured values to be able to be consumed multiple times, but `FnOnce` closures may consume them only once
  --> $DIR/unboxed-closure-illegal-move.rs:7:33
   |
LL | fn to_fn<A:std::marker::Tuple,F:Fn<A>>(f: F) -> F { f }
   |                                 ^^^^^

error[E0507]: cannot move out of `x`, a captured variable in an `FnMut` closure
  --> $DIR/unboxed-closure-illegal-move.rs:32:40
   |
LL |         let x = Box::new(0);
   |             -   ----------- move occurs because `x` has type `Box<i32>`, which does not implement the `Copy` trait
   |             |
   |             captured outer variable
LL |         let f = to_fn_mut(move || drop(x));
   |                           -------      ^ `x` is moved here
   |                           |
   |                           captured by this `FnMut` closure
   |
help: `Fn` and `FnMut` closures require captured values to be able to be consumed multiple times, but `FnOnce` closures may consume them only once
  --> $DIR/unboxed-closure-illegal-move.rs:8:37
   |
LL | fn to_fn_mut<A:std::marker::Tuple,F:FnMut<A>>(f: F) -> F { f }
   |                                     ^^^^^^^^

error: aborting due to 4 previous errors

For more information about this error, try `rustc --explain E0507`.