message: Use the no-field syntax instead of empty braces.
diff: @@ -41,4 +41,4 @@ static ALLOCATOR: linked_list_allocator::LockedHeap = linked_list_allocator::Loc
  // Dummy structure to force importing the panic_handler and other no_std elements when nothing else
  // is imported.
  -pub struct LibTock {}
  +pub struct LibTock;
  