rust-lang
diff --git a/‎src/librustc/ty/maps/config.rs
Lines changed: 1 addition & 1 deletion b/‎src/librustc/ty/maps/config.rs
Lines changed: 1 addition & 1 deletion
@@ -23,7 +23,7 @@ use syntax_pos::symbol::InternedString;
 
 pub trait QueryConfig {
     type Key: Eq + Hash + Clone;
-    type Value;
+    type Value: Clone;
 }
 
 pub(super) trait QueryDescription<'tcx>: QueryConfig {
Original file line number	Diff line number	Diff line change
`@@ -23,7 +23,7 @@ use syntax_pos::symbol::InternedString;`
`23`	`23`
`24`	`24`	`pub trait QueryConfig {`
`25`	`25`	`type Key: Eq + Hash + Clone;`
`26`		`- type Value;`
	`26`	`+ type Value: Clone;`
`27`	`27`	`}`
`28`	`28`
`29`	`29`	`pub(super) trait QueryDescription<'tcx>: QueryConfig {`