diff --git a/components/gfx/display_list/mod.rs b/components/gfx/display_list/mod.rs
index 2b5b8707780..99a7cc5fe0c 100644
--- a/components/gfx/display_list/mod.rs
+++ b/components/gfx/display_list/mod.rs
@@ -353,7 +353,7 @@ impl StackingContext {
         fn hit_test_in_list<'a,I>(point: Point2D<Au>,
                                   result: &mut Vec<DisplayItemMetadata>,
                                   topmost_only: bool,
-                                  mut iterator: I)
+                                  iterator: I)
                                   where I: Iterator<Item=&'a DisplayItem> {
             for item in iterator {
                 // TODO(pcwalton): Use a precise algorithm here. This will allow us to properly hit
diff --git a/components/gfx/display_list/optimizer.rs b/components/gfx/display_list/optimizer.rs
index 485cc1816a6..f14ff8a74a8 100644
--- a/components/gfx/display_list/optimizer.rs
+++ b/components/gfx/display_list/optimizer.rs
@@ -43,7 +43,7 @@ impl DisplayListOptimizer {
     /// Adds display items that intersect the visible rect to `result_list`.
     fn add_in_bounds_display_items<'a,I>(&self,
                                          result_list: &mut DList<DisplayItem>,
-                                         mut display_items: I)
+                                         display_items: I)
                                          where I: Iterator<Item=&'a DisplayItem> {
         for display_item in display_items {
             if self.visible_rect.intersects(&display_item.base().bounds) &&
@@ -56,7 +56,7 @@ impl DisplayListOptimizer {
     /// Adds child stacking contexts whose boundaries intersect the visible rect to `result_list`.
     fn add_in_bounds_stacking_contexts<'a,I>(&self,
                                              result_list: &mut DList<Arc<StackingContext>>,
-                                             mut stacking_contexts: I)
+                                             stacking_contexts: I)
                                              where I: Iterator<Item=&'a Arc<StackingContext>> {
         for stacking_context in stacking_contexts {
             let overflow = stacking_context.overflow.translate(&stacking_context.bounds.origin);
diff --git a/components/gfx/font.rs b/components/gfx/font.rs
index 0e676b6f3e3..21ab30ca0af 100644
--- a/components/gfx/font.rs
+++ b/components/gfx/font.rs
@@ -58,7 +58,7 @@ impl FontTableTagConversions for FontTableTag {
     fn tag_to_str(&self) -> String {
         unsafe {
             let pointer = mem::transmute::<&u32, *const u8>(self);
-            let mut bytes = slice::from_raw_buf(&pointer, 4).to_vec();
+            let mut bytes = slice::from_raw_parts(pointer, 4).to_vec();
             bytes.reverse();
             String::from_utf8_unchecked(bytes)
         }
diff --git a/components/gfx/lib.rs b/components/gfx/lib.rs
index 8274da13714..5ccf043d3b7 100644
--- a/components/gfx/lib.rs
+++ b/components/gfx/lib.rs
@@ -2,10 +2,22 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#![feature(unsafe_destructor, int_uint, plugin, box_syntax)]
+#![feature(alloc)]
+#![feature(box_syntax)]
+#![feature(collections)]
+#![feature(core)]
+#![feature(hash)]
+#![feature(int_uint)]
+#![feature(io)]
+#![feature(libc)]
+#![feature(path)]
+#![feature(plugin)]
+#![feature(rustc_private)]
+#![feature(std_misc)]
+#![feature(unicode)]
+#![feature(unsafe_destructor)]
 
 #![allow(missing_copy_implementations)]
-#![allow(unstable)]
 
 #[macro_use]
 extern crate log;
diff --git a/components/gfx/text/glyph.rs b/components/gfx/text/glyph.rs
index 1389be3fa62..7341036e6d3 100644
--- a/components/gfx/text/glyph.rs
+++ b/components/gfx/text/glyph.rs
@@ -345,7 +345,7 @@ impl<'a> DetailedGlyphStore {
         // FIXME: Is this right? --pcwalton
         // TODO: should fix this somewhere else
         if count == 0 {
-            return self.detail_buffer.slice(0, 0);
+            return &self.detail_buffer[0..0];
         }
 
         assert!((count as uint) <= self.detail_buffer.len());
@@ -361,7 +361,7 @@ impl<'a> DetailedGlyphStore {
 
         assert!(i + (count as uint) <= self.detail_buffer.len());
         // return a slice into the buffer
-        self.detail_buffer.slice(i, i + count as uint)
+        &self.detail_buffer[i .. i + count as uint]
     }
 
     fn get_detailed_glyph_with_index(&'a self,
diff --git a/components/gfx/text/text_run.rs b/components/gfx/text/text_run.rs
index 20429079c7e..9c28462411e 100644
--- a/components/gfx/text/text_run.rs
+++ b/components/gfx/text/text_run.rs
@@ -231,7 +231,7 @@ impl<'a> TextRun {
 
             // Create a glyph store for this slice if it's nonempty.
             if can_break_before && byte_i > byte_last_boundary {
-                let slice = text.slice(byte_last_boundary, byte_i);
+                let slice = &text[byte_last_boundary .. byte_i];
                 debug!("creating glyph store for slice {} (ws? {}), {} - {} in run {}",
                         slice, !cur_slice_is_whitespace, byte_last_boundary, byte_i, text);
 
@@ -254,7 +254,7 @@ impl<'a> TextRun {
 
         // Create a glyph store for the final slice if it's nonempty.
         if byte_i > byte_last_boundary {
-            let slice = text.slice_from(byte_last_boundary);
+            let slice = &text[byte_last_boundary..];
             debug!("creating glyph store for final slice {} (ws? {}), {} - {} in run {}",
                 slice, cur_slice_is_whitespace, byte_last_boundary, text.len(), text);
 
@@ -343,7 +343,7 @@ impl<'a> TextRun {
             Some(index) => index,
         };
         NaturalWordSliceIterator {
-            glyph_iter: self.glyphs.slice_from(index).iter(),
+            glyph_iter: self.glyphs[index..].iter(),
             range: *range,
         }
     }
@@ -356,7 +356,7 @@ impl<'a> TextRun {
             None => self.glyphs.len(),
             Some(index) => index,
         };
-        let mut glyph_run_iter = self.glyphs.slice_from(index).iter();
+        let mut glyph_run_iter = self.glyphs[index..].iter();
         let first_glyph_run = glyph_run_iter.next();
         CharacterSliceIterator {
             glyph_run: first_glyph_run,