error: type uses owned (Box type) pointers: Box<isize>
  --> $DIR/lint-owned-heap-memory.rs:6:5
   |
LL |     x: Box<isize>
   |     ^^^^^^^^^^^^^
   |
note: the lint level is defined here
  --> $DIR/lint-owned-heap-memory.rs:2:11
   |
LL | #![forbid(box_pointers)]
   |           ^^^^^^^^^^^^

error: type uses owned (Box type) pointers: Box<isize>
  --> $DIR/lint-owned-heap-memory.rs:10:29
   |
LL |     let _x: Foo = Foo { x : Box::new(10) };
   |                             ^^^^^^^^^^^^

error: aborting due to 2 previous errors