Fix nits; warning police

src/components/main/layout/aux.rs

@@ -37,7 +37,7 @@ impl LayoutData {
         LayoutData {
             style: None,
             restyle_damage: None,
-            boxes: DisplayBoxes{ display_list: None, range: None },
+            boxes: DisplayBoxes { display_list: None, range: None },
         }
     }
 }

src/components/main/layout/box.rs

@@ -8,7 +8,6 @@ use css::node_style::StyledNode;
 use layout::context::LayoutContext;
 use layout::display_list_builder::{DisplayListBuilder, ExtraDisplayListData, ToGfxColor};
 use layout::float_context::{ClearType, ClearLeft, ClearRight, ClearBoth};
-use layout::flow::FlowContext;
 use layout::model::{BoxModel, MaybeAuto};
 use layout::text;
 

src/components/main/layout/box_builder.rs

@@ -30,7 +30,6 @@ use script::dom::node::{AbstractNode, CommentNodeTypeId, DoctypeNodeTypeId};
 use script::dom::node::{ElementNodeTypeId, LayoutView, TextNodeTypeId};
 use servo_util::range::Range;
 use servo_util::tree::{TreeNodeRef, TreeNode};
-use std::util;
 use std::cell::Cell;
 
 pub struct LayoutTreeBuilder {
@@ -481,7 +480,7 @@ impl LayoutTreeBuilder {
                               ty: FlowContextType)
                               -> BoxGenerator<'a> {
 
-        let mut new_flow = self.make_flow(ty, node);
+        let new_flow = self.make_flow(ty, node);
         parent_generator.flow.add_new_child(new_flow);
         BoxGenerator::new(parent_generator.flow.last_child().unwrap())
     }
@@ -590,7 +589,7 @@ impl LayoutTreeBuilder {
 
         let mut new_flow = self.make_flow(Flow_Root, root);
         {
-            let mut new_generator = BoxGenerator::new(&mut new_flow);
+            let new_generator = BoxGenerator::new(&mut new_flow);
             self.construct_recursively(layout_ctx, root, new_generator, None);
         }
         return Ok(new_flow)

src/components/main/layout/float.rs

@@ -5,7 +5,7 @@
 use layout::box::{RenderBox};
 use layout::context::LayoutContext;
 use layout::display_list_builder::{DisplayListBuilder, ExtraDisplayListData};
-use layout::flow::{FloatFlow, FlowData};
+use layout::flow::{FlowData};
 use layout::model::{MaybeAuto};
 use layout::float_context::{FloatContext, PlacementInfo, FloatType};
 

src/components/main/layout/layout_task.rs

@@ -16,7 +16,6 @@ use layout::incremental::{RestyleDamage, BubbleWidths};
 
 use std::cast::transmute;
 use std::cell::Cell;
-use std::uint;
 use std::comm::{Port};
 use extra::arc::Arc;
 use geom::point::Point2D;