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-rw-r--r--src/libsyntax/ptr.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libsyntax/ptr.rs b/src/libsyntax/ptr.rs
index bb1744e2df1..3effe53cd29 100644
--- a/src/libsyntax/ptr.rs
+++ b/src/libsyntax/ptr.rs
@@ -101,6 +101,7 @@ impl<T: 'static> P<T> {
                 // Recreate self from the raw pointer.
                 Some(P { ptr: Box::from_raw(p) })
             } else {
+                drop(Box::from_raw(p));
                 None
             }
         }