---

yaml
---
r: 161659
b: refs/heads/snap-stage3
c: f102123
h: refs/heads/master
i:
  161657: f77f338
  161655: 0b0e53c
v: v3

Author: barosl

[refs]

@@ -1,7 +1,7 @@
 ---
 refs/heads/master: 4eb72d268f337a8f117c86a2ac1b98336cab9e9d
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
-refs/heads/snap-stage3: ca4f53655e82a0a0e1d613b16108720bb7a50fde
+refs/heads/snap-stage3: f102123b659911dbee25bbe518d73d66185bb978
 refs/heads/try: 0f0d21c1eb5c7be04d323e0b06faf252ad790af6
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d

branches/snap-stage3/src/libserialize/json.rs

@@ -1974,10 +1974,7 @@ macro_rules! read_primitive {
                     }
                 }
                 Json::F64(f) => {
-                    match num::cast(f) {
-                        Some(f) => Ok(f),
-                        None => Err(ExpectedError("Number".to_string(), format!("{}", f))),
-                    }
+                    Err(ExpectedError("Integer".to_string(), format!("{}", f)))
                 }
                 Json::String(s) => {
                     // re: #12967.. a type w/ numeric keys (ie HashMap<uint, V> etc)
@@ -2830,6 +2827,9 @@ mod tests {
 
         let v: i64 = super::decode("9223372036854775807").unwrap();
         assert_eq!(v, i64::MAX);
+
+        let res: DecodeResult<i64> = super::decode("765.25252");
+        assert_eq!(res, Err(ExpectedError("Integer".into_string(), "765.25252".into_string())));
     }
 
     #[test]