---

yaml
---
r: 50291
b: refs/heads/auto
c: c317d3f
h: refs/heads/master
i:
  50289: feecee0
  50287: aa4c186
v: v3

Author: erickt

[refs]

@@ -14,5 +14,5 @@ refs/heads/try3: 9387340aab40a73e8424c48fd42f0c521a4875c0
 refs/tags/release-0.3.1: 495bae036dfe5ec6ceafd3312b4dca48741e845b
 refs/tags/release-0.4: e828ea2080499553b97dfe33b3f4d472b4562ad7
 refs/tags/release-0.5: 7e3bcfbf21278251ee936ad53e92e9b719702d73
-refs/heads/auto: 83e831bc229c2346e2322aaad1fdaa219325a4b3
+refs/heads/auto: c317d3f6fa9475e65b6276743c09444441059ca7
 refs/heads/servo: af82457af293e2a842ba6b7759b70288da276167

branches/auto/src/libstd/json.rs

@@ -827,15 +827,15 @@ impl<'self> serialize::Decoder for Decoder<'self> {
         debug!("read_owned_str");
         match *self.pop() {
             String(ref s) => copy *s,
-            _ => fail!(~"not a string")
+            ref json => fail!(fmt!("not a string: %?", *json))
         }
     }
 
     fn read_managed_str(&self) -> @str {
         debug!("read_managed_str");
         match *self.pop() {
             String(ref s) => s.to_managed(),
-            _ => fail!(~"not a string")
+            ref json => fail!(fmt!("not a string: %?", *json))
         }
     }
 
@@ -872,7 +872,7 @@ impl<'self> serialize::Decoder for Decoder<'self> {
         let name = match *self.peek() {
             String(ref s) => s,
             List([String(ref s), .. _]) => s,
-            json => fail!(fmt!("invalid variant: %?", json)),
+            ref json => fail!(fmt!("invalid variant: %?", *json)),
         };
         let idx = match vec::position(names, |n| str::eq_slice(*n, *name)) {
             Some(idx) => idx,