1 error[E0382]: use of moved value: `b`
2 --> $DIR/borrowck-consume-upcast-box.rs:10:13
4 LL | fn foo(b: Box<dyn Foo + Send>) {
5 | - move occurs because `b` has type `Box<dyn Foo + Send>`, which does not implement the `Copy` trait
9 | ^ value used here after move
11 note: consider changing this parameter type in function `consume` to borrow instead if owning the value isn't necessary
12 --> $DIR/borrowck-consume-upcast-box.rs:5:15
14 LL | fn consume(_: Box<dyn Foo>) {
15 | ------- ^^^^^^^^^^^^ this parameter takes ownership of the value
19 error: aborting due to previous error
21 For more information about this error, try `rustc --explain E0382`.