message: enable a test that was accidentally left disabled
diff: #![feature(box_syntax)]
  -// This disables the test completely:
  -// ignore-stage1
  fn main() {
  - // With the nested Vec, this is calling Offset(Unique::empty(), 0).
  + // With the nested Vec, this is calling Offset(Unique::empty(), 0) on drop.
  let args : Vec<Vec<i32>> = Vec::new();
  - let local = box args;
  + let _ = box args;
  }
  