remove already implied must_use

diff --git a/src/machine/heap.rs b/src/machine/heap.rs
index 0aad650af8324592b20c3b53255cc4b14bee2a6f..e69050abd0ad6e7bd0ae983d39a34440a084f1eb 100644 (file)
--- a/src/machine/heap.rs
+++ b/src/machine/heap.rs
@@ -612,7 +612,6 @@ impl Heap {
         }
     }
 
-    #[must_use]
     pub fn reserve(&mut self, num_cells: usize) -> Result<HeapWriter, usize> {
         let section;
         let len = heap_index!(num_cells);