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-rw-r--r--src/librustc/middle/region.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/librustc/middle/region.rs b/src/librustc/middle/region.rs
index 2f0462ab8c3..e539f6ae6cb 100644
--- a/src/librustc/middle/region.rs
+++ b/src/librustc/middle/region.rs
@@ -407,7 +407,7 @@ impl RegionMaps {
 
     pub fn opt_encl_scope(&self, id: CodeExtent) -> Option<CodeExtent> {
         //! Returns the narrowest scope that encloses `id`, if any.
-        self.scope_map.borrow().get(&id).map(|x| *x)
+        self.scope_map.borrow().get(&id).cloned()
     }
 
     #[allow(dead_code)] // used in middle::cfg