Merge pull request #350 from jgallagher/clippy

Fix clippy warnings

src/lib.rs

@@ -780,7 +780,7 @@ impl InnerConnection {
             // attempt to turn on extended results code; don't fail if we can't.
             ffi::sqlite3_extended_result_codes(db, 1);
 
-            Ok(InnerConnection { db: db })
+            Ok(InnerConnection { db })
         }
     }