diff --git a/Cargo.toml b/Cargo.toml
index a4a9c77..1170e1b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "cgmath"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["Brendan Zabarauskas <bjzaba@yahoo.com.au>",
         "Brian Heylin",
         "Colin Sherratt",
@@ -20,6 +20,8 @@ repository="https://github.com/bjz/cgmath-rs"
 [lib]
 name = "cgmath"
 
+[dependencies.rustc-serialize]
+rustc_serialize = "*"
+
 [dependencies]
-rustc-serialize="*"
-rand="*"
+rand = "*"
diff --git a/src/lib.rs b/src/lib.rs
index 9a49f5b..51983f0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -31,7 +31,7 @@
 //! `look_at`, `from_angle`, `from_euler`, and `from_axis_angle` methods.
 //! These are provided for convenience.
 
-extern crate "rustc-serialize" as rustc_serialize;
+extern crate rustc_serialize;
 extern crate rand;
 
 // Re-exports
diff --git a/src/matrix.rs b/src/matrix.rs
index 9a10ab6..2d7f9e6 100644
--- a/src/matrix.rs
+++ b/src/matrix.rs
@@ -545,15 +545,15 @@ impl<S> Index<usize> for Matrix2<S> {
     type Output =  Vector2<S>;
 
     #[inline]
-    fn index<'a>(&'a self, i: &usize) -> &'a Vector2<S> {
-        FixedArray::from_fixed_ref(&self.as_fixed()[*i])
+    fn index<'a>(&'a self, i: usize) -> &'a Vector2<S> {
+        FixedArray::from_fixed_ref(&self.as_fixed()[i])
     }
 }
 
 impl<S> IndexMut<usize> for Matrix2<S> {
     #[inline]
-    fn index_mut<'a>(&'a mut self, i: &usize) -> &'a mut Vector2<S> {
-        FixedArray::from_fixed_mut(&mut self.as_mut_fixed()[*i])
+    fn index_mut<'a>(&'a mut self, i: usize) -> &'a mut Vector2<S> {
+        FixedArray::from_fixed_mut(&mut self.as_mut_fixed()[i])
     }
 }
 
@@ -627,15 +627,15 @@ impl<S> Index<usize> for Matrix3<S> {
     type Output = Vector3<S>;
 
     #[inline]
-    fn index<'a>(&'a self, i: &usize) -> &'a Vector3<S> {
-        FixedArray::from_fixed_ref(&self.as_fixed()[*i])
+    fn index<'a>(&'a self, i: usize) -> &'a Vector3<S> {
+        FixedArray::from_fixed_ref(&self.as_fixed()[i])
     }
 }
 
 impl<S> IndexMut<usize> for Matrix3<S> {
     #[inline]
-    fn index_mut<'a>(&'a mut self, i: &usize) -> &'a mut Vector3<S> {
-        FixedArray::from_fixed_mut(&mut self.as_mut_fixed()[*i])
+    fn index_mut<'a>(&'a mut self, i: usize) -> &'a mut Vector3<S> {
+        FixedArray::from_fixed_mut(&mut self.as_mut_fixed()[i])
     }
 }
 
@@ -714,15 +714,15 @@ impl<S> Index<usize> for Matrix4<S> {
     type Output = Vector4<S>;
 
     #[inline]
-    fn index<'a>(&'a self, i: &usize) -> &'a Vector4<S> {
-        FixedArray::from_fixed_ref(&self.as_fixed()[*i])
+    fn index<'a>(&'a self, i: usize) -> &'a Vector4<S> {
+        FixedArray::from_fixed_ref(&self.as_fixed()[i])
     }
 }
 
 impl<S> IndexMut<usize> for Matrix4<S> {
     #[inline]
-    fn index_mut<'a>(&'a mut self, i: &usize) -> &'a mut Vector4<S> {
-        FixedArray::from_fixed_mut(&mut self.as_mut_fixed()[*i])
+    fn index_mut<'a>(&'a mut self, i: usize) -> &'a mut Vector4<S> {
+        FixedArray::from_fixed_mut(&mut self.as_mut_fixed()[i])
     }
 }
 
diff --git a/src/point.rs b/src/point.rs
index 27697c0..03923ef 100644
--- a/src/point.rs
+++ b/src/point.rs
@@ -147,15 +147,15 @@ impl<S> FixedArray<[S; 2]> for Point2<S> {
 impl<S: BaseNum> Index<usize> for Point2<S> {
     type Output = S;
     #[inline]
-    fn index<'a>(&'a self, i: &usize) -> &'a S {
-        &self.as_fixed()[*i]
+    fn index<'a>(&'a self, i: usize) -> &'a S {
+        &self.as_fixed()[i]
     }
 }
 
 impl<S: BaseNum> IndexMut<usize> for Point2<S> {
     #[inline]
-    fn index_mut<'a>(&'a mut self, i: &usize) -> &'a mut S {
-        &mut self.as_mut_fixed()[*i]
+    fn index_mut<'a>(&'a mut self, i: usize) -> &'a mut S {
+        &mut self.as_mut_fixed()[i]
     }
 }
 
@@ -303,15 +303,15 @@ impl<S: BaseNum> Index<usize> for Point3<S> {
     type Output = S;
 
     #[inline]
-    fn index<'a>(&'a self, i: &usize) -> &'a S {
-        &self.as_fixed()[*i]
+    fn index<'a>(&'a self, i: usize) -> &'a S {
+        &self.as_fixed()[i]
     }
 }
 
 impl<S: BaseNum> IndexMut<usize> for Point3<S> {
     #[inline]
-    fn index_mut<'a>(&'a mut self, i: &usize) -> &'a mut S {
-        &mut self.as_mut_fixed()[*i]
+    fn index_mut<'a>(&'a mut self, i: usize) -> &'a mut S {
+        &mut self.as_mut_fixed()[i]
     }
 }
 
diff --git a/src/quaternion.rs b/src/quaternion.rs
index fdbe73e..7d48b1a 100644
--- a/src/quaternion.rs
+++ b/src/quaternion.rs
@@ -57,17 +57,17 @@ impl<S: BaseFloat> Index<usize> for Quaternion<S> {
     type Output = S;
 
     #[inline]
-    fn index<'a>(&'a self, i: &usize) -> &'a S {
+    fn index<'a>(&'a self, i: usize) -> &'a S {
         let slice: &[S; 4] = unsafe { mem::transmute(self) };
-        &slice[*i]
+        &slice[i]
     }
 }
 
 impl<S: BaseFloat> IndexMut<usize> for Quaternion<S> {
     #[inline]
-    fn index_mut<'a>(&'a mut self, i: &usize) -> &'a mut S {
+    fn index_mut<'a>(&'a mut self, i: usize) -> &'a mut S {
         let slice: &'a mut [S; 4] = unsafe { mem::transmute(self) };
-        &mut slice[*i]
+        &mut slice[i]
     }
 }
 
diff --git a/src/rotation.rs b/src/rotation.rs
index 2a45328..8e92d31 100644
--- a/src/rotation.rs
+++ b/src/rotation.rs
@@ -133,6 +133,7 @@ pub trait Rotation3<S: BaseNum>: Rotation<S, Vector3<S>, Point3<S>>
 /// matrix:
 ///
 /// ```no_run
+/// #![feature(core)]
 /// use cgmath::rad;
 /// use cgmath::Vector2;
 /// use cgmath::{Matrix, ToMatrix2};
diff --git a/src/vector.rs b/src/vector.rs
index 5b33aa3..7f32b8e 100644
--- a/src/vector.rs
+++ b/src/vector.rs
@@ -267,15 +267,15 @@ macro_rules! vec(
             type Output = S;
 
             #[inline]
-            fn index<'a>(&'a self, i: &usize) -> &'a $S {
-                &self.as_fixed()[*i]
+            fn index<'a>(&'a self, i: usize) -> &'a $S {
+                &self.as_fixed()[i]
             }
         }
 
         impl<$S: Copy> IndexMut<usize> for $Self_<$S> {
             #[inline]
-            fn index_mut<'a>(&'a mut self, i: &usize) -> &'a mut $S {
-                &mut self.as_mut_fixed()[*i]
+            fn index_mut<'a>(&'a mut self, i: usize) -> &'a mut $S {
+                &mut self.as_mut_fixed()[i]
             }
         }
 
diff --git a/tests/quaternion.rs b/tests/quaternion.rs
index 05c46f7..6b0dcf2 100644
--- a/tests/quaternion.rs
+++ b/tests/quaternion.rs
@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#![feature(core)]
 
 extern crate cgmath;