diff -r e834b79def74 -r 81aedf1fc897 rust/hg-core/src/dirstate.rs
--- a/rust/hg-core/src/dirstate.rs	Fri Sep 10 09:53:09 2021 +0200
+++ b/rust/hg-core/src/dirstate.rs	Thu Sep 09 21:04:55 2021 +0200
@@ -19,7 +19,7 @@
 pub mod parsers;
 pub mod status;
 
-#[derive(Debug, PartialEq, Clone, BytesCast)]
+#[derive(Debug, PartialEq, Copy, Clone, BytesCast)]
 #[repr(C)]
 pub struct DirstateParents {
     pub p1: Node,