Fix dummy build

alexcrichton · alexcrichton · commit 97a488e5353b · 2024-01-27T15:23:14.000-08:00
diff --git a/src/dummy.rs b/src/dummy.rs
@@ -1,5 +1,5 @@
+use crate::Allocator;
 use core::ptr;
-use Allocator;
 
 pub struct System {
     _priv: (),
