1 files changed, 2 insertions, 0 deletions
diff --git a/src/libcoretest/hash/mod.rs b/src/libcoretest/hash/mod.rs
index 4ea42644ecd..dec8b57518f 100644
--- a/src/libcoretest/hash/mod.rs
+++ b/src/libcoretest/hash/mod.rs
@@ -18,6 +18,7 @@ struct MyHasher {
 }
 
 impl Default for MyHasher {
+    /// Constructs a `MyHasher` with initial value zero.
     fn default() -> MyHasher {
         MyHasher { hash: 0 }
     }
@@ -90,6 +91,7 @@ impl Hasher for CustomHasher {
 }
 
 impl Default for CustomHasher {
+    /// Constructs a `CustomHasher` with initial value zero.
     fn default() -> CustomHasher {
         CustomHasher { output: 0 }
     }