diff --git a/src/lib.rs b/src/lib.rs
index 7a89445..a9b42b7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -39,7 +39,7 @@
 #![crate_name = "toml"]
 #![crate_type = "lib"]
 #![feature(macro_rules)]
-#![deny(missing_doc)]
+#![deny(missing_docs)]
 
 extern crate serialize;
 
@@ -62,7 +62,7 @@ mod serialization;
 #[cfg(test)]mod test;
 /// Representation of a TOML value.
 #[deriving(PartialEq, Clone)]
-#[allow(missing_doc)]
+#[allow(missing_docs)]
 pub enum Value {
     String(string::String),
     Integer(i64),
diff --git a/src/serialization.rs b/src/serialization.rs
index 2573f5f..afaa425 100644
--- a/src/serialization.rs
+++ b/src/serialization.rs
@@ -639,14 +639,14 @@ impl serialize::Decoder<DecodeError> for Decoder {
         -> Result<T, DecodeError>
     {
         let toml = match self.toml {
-            Some(Array(ref mut arr)) => mem::replace(arr.get_mut(idx), Integer(0)),
+            Some(Array(ref mut arr)) => mem::replace(&mut arr[idx], Integer(0)),
             ref found => return Err(self.mismatch("array", found)),
         };
         let mut d = self.sub_decoder(Some(toml), "");
         let ret = try!(f(&mut d));
         match d.toml {
             Some(toml) => match self.toml {
-                Some(Array(ref mut arr)) => *arr.get_mut(idx) = toml,
+                Some(Array(ref mut arr)) => arr[idx] = toml,
                 _ => {}
             },
             _ => {}