MAINT: Use ? operator instead of try!() macro

Author: bluss

src/array_string.rs

@@ -559,7 +559,7 @@ impl<'de, A> Deserialize<'de> for ArrayString<A>
             fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
                 where E: de::Error,
             {
-                let s = try!(str::from_utf8(v).map_err(|_| E::invalid_value(de::Unexpected::Bytes(v), &self)));
+                let s = str::from_utf8(v).map_err(|_| E::invalid_value(de::Unexpected::Bytes(v), &self))?;
 
                 ArrayString::from(s).map_err(|_| E::invalid_length(s.len(), &self))
             }

src/lib.rs

@@ -1127,7 +1127,7 @@ impl<'de, T: Deserialize<'de>, A: Array<Item=T>> Deserialize<'de> for ArrayVec<A
             {
                 let mut values = ArrayVec::<A>::new();
 
-                while let Some(value) = try!(seq.next_element()) {
+                while let Some(value) = seq.next_element()? {
                     if let Err(_) = values.try_push(value) {
                         return Err(SA::Error::invalid_length(A::CAPACITY + 1, &self));
                     }

tests/tests.rs

@@ -472,7 +472,7 @@ fn test_string() {
     // Test Error trait / try
     let t = || -> Result<(), Box<Error>> {
         let mut t = ArrayString::<[_; 2]>::new();
-        try!(t.try_push_str(text));
+        t.try_push_str(text)?;
         Ok(())
     }();
     assert!(t.is_err());