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

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))
             }