diff --git a/components/canvas_traits/Cargo.toml b/components/canvas_traits/Cargo.toml
index bf085994f0b..8c966d3f956 100644
--- a/components/canvas_traits/Cargo.toml
+++ b/components/canvas_traits/Cargo.toml
@@ -14,7 +14,7 @@ azure = {git = "https://github.com/servo/rust-azure", features = ["plugins"]}
 cssparser = {version = "0.7", features = ["heap_size", "serde-serialization"]}
 euclid = "0.10.1"
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 ipc-channel = "0.5"
 plugins = {path = "../plugins"}
 serde = {version = "0.8", features = ["unstable"]}
diff --git a/components/canvas_traits/lib.rs b/components/canvas_traits/lib.rs
index 2024d7e14ce..ec30efe03db 100644
--- a/components/canvas_traits/lib.rs
+++ b/components/canvas_traits/lib.rs
@@ -8,7 +8,7 @@
 #![feature(plugin)]
 #![feature(proc_macro)]
 #![feature(rustc_attrs)]
-#![plugin(heapsize_plugin, plugins)]
+#![plugin(plugins)]
 
 #![deny(unsafe_code)]
 
@@ -17,10 +17,10 @@ extern crate core;
 extern crate cssparser;
 extern crate euclid;
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate ipc_channel;
 extern crate serde;
-#[macro_use]
-extern crate serde_derive;
+#[macro_use] extern crate serde_derive;
 extern crate webrender_traits;
 
 use azure::azure::AzFloat;
diff --git a/components/devtools_traits/Cargo.toml b/components/devtools_traits/Cargo.toml
index efcefc3a119..ef37e153e44 100644
--- a/components/devtools_traits/Cargo.toml
+++ b/components/devtools_traits/Cargo.toml
@@ -12,7 +12,7 @@ path = "lib.rs"
 [dependencies]
 bitflags = "0.7"
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 hyper = "0.9.9"
 hyper_serde = "0.1.4"
 ipc-channel = "0.5"
diff --git a/components/devtools_traits/lib.rs b/components/devtools_traits/lib.rs
index 4944fd70317..7335371bca4 100644
--- a/components/devtools_traits/lib.rs
+++ b/components/devtools_traits/lib.rs
@@ -12,19 +12,18 @@
 #![allow(non_snake_case)]
 #![deny(unsafe_code)]
 
-#![feature(custom_derive, plugin, proc_macro, rustc_attrs, structural_match)]
-#![plugin(heapsize_plugin)]
+#![feature(proc_macro, rustc_attrs, structural_match)]
 
 #[allow(unused_extern_crates)]
 #[macro_use]
 extern crate bitflags;
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate hyper;
 extern crate ipc_channel;
 extern crate msg;
 extern crate serde;
-#[macro_use]
-extern crate serde_derive;
+#[macro_use] extern crate serde_derive;
 extern crate time;
 extern crate url;
 
diff --git a/components/gfx/Cargo.toml b/components/gfx/Cargo.toml
index 035e24b37b0..667de0605e5 100644
--- a/components/gfx/Cargo.toml
+++ b/components/gfx/Cargo.toml
@@ -20,7 +20,7 @@ fontsan = {git = "https://github.com/servo/fontsan"}
 gfx_traits = {path = "../gfx_traits"}
 harfbuzz-sys = "0.1"
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 ipc-channel = "0.5"
 lazy_static = "0.2"
 libc = "0.2"
diff --git a/components/gfx/lib.rs b/components/gfx/lib.rs
index 5f831715f29..b3228018181 100644
--- a/components/gfx/lib.rs
+++ b/components/gfx/lib.rs
@@ -16,7 +16,6 @@
 #![feature(structural_match)]
 #![feature(unique)]
 
-#![plugin(heapsize_plugin)]
 #![plugin(plugins)]
 
 #![deny(unsafe_code)]
@@ -55,6 +54,7 @@ extern crate gfx_traits;
 extern crate harfbuzz_sys as harfbuzz;
 
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate ipc_channel;
 #[allow(unused_extern_crates)]
 #[macro_use]
diff --git a/components/gfx/platform/freetype/font_context.rs b/components/gfx/platform/freetype/font_context.rs
index 857e55f12b4..739f1b72d5c 100644
--- a/components/gfx/platform/freetype/font_context.rs
+++ b/components/gfx/platform/freetype/font_context.rs
@@ -99,7 +99,7 @@ impl HeapSizeOf for FreeTypeLibraryHandle {
     }
 }
 
-#[derive(Clone, HeapSizeOf, Debug)]
+#[derive(Clone, Debug)]
 pub struct FontContextHandle {
     // WARNING: FreeTypeLibraryHandle contains raw pointers, is clonable, and also implements
     // `Drop`. This field needs to be Rc<> to make sure that the `drop` function is only called
@@ -107,6 +107,12 @@ pub struct FontContextHandle {
     pub ctx: Rc<FreeTypeLibraryHandle>,
 }
 
+impl HeapSizeOf for FontContextHandle {
+    fn heap_size_of_children(&self) -> usize {
+        self.ctx.heap_size_of_children()
+    }
+}
+
 impl FontContextHandle {
     pub fn new() -> FontContextHandle {
         let user = Box::into_raw(box User {
diff --git a/components/gfx_traits/Cargo.toml b/components/gfx_traits/Cargo.toml
index a17faeda3d0..d0d913c1e5a 100644
--- a/components/gfx_traits/Cargo.toml
+++ b/components/gfx_traits/Cargo.toml
@@ -11,7 +11,7 @@ path = "lib.rs"
 
 [dependencies]
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 plugins = {path = "../plugins"}
 range = {path = "../range"}
 rustc-serialize = "0.3"
diff --git a/components/gfx_traits/lib.rs b/components/gfx_traits/lib.rs
index cddfc0193ba..80b45444e3f 100644
--- a/components/gfx_traits/lib.rs
+++ b/components/gfx_traits/lib.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #![feature(custom_derive, plugin, proc_macro, rustc_attrs, structural_match)]
-#![plugin(heapsize_plugin, plugins)]
+#![plugin(plugins)]
 
 #![crate_name = "gfx_traits"]
 #![crate_type = "rlib"]
@@ -11,6 +11,7 @@
 #![deny(unsafe_code)]
 
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 #[macro_use]
 extern crate range;
 extern crate rustc_serialize;
diff --git a/components/jstraceable_derive/Cargo.toml b/components/jstraceable_derive/Cargo.toml
new file mode 100644
index 00000000000..765678c0341
--- /dev/null
+++ b/components/jstraceable_derive/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "jstraceable_derive"
+version = "0.0.1"
+authors = ["The Servo Project Developers"]
+license = "MPL-2.0"
+publish = false
+
+[lib]
+path = "lib.rs"
+proc-macro = true
+
+[dependencies]
+syn = "0.9"
+quote = "0.3"
+synstructure = "0.2"
diff --git a/components/jstraceable_derive/lib.rs b/components/jstraceable_derive/lib.rs
new file mode 100644
index 00000000000..9b4899306f9
--- /dev/null
+++ b/components/jstraceable_derive/lib.rs
@@ -0,0 +1,58 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * 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(proc_macro, proc_macro_lib)]
+
+extern crate proc_macro;
+#[macro_use] extern crate quote;
+extern crate syn;
+extern crate synstructure;
+
+#[cfg(not(test))]
+#[proc_macro_derive(JSTraceable)]
+pub fn expand_token_stream(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
+    expand_string(&input.to_string()).parse().unwrap()
+}
+
+fn expand_string(input: &str) -> String {
+    let mut type_ = syn::parse_macro_input(input).unwrap();
+
+    let style = synstructure::BindStyle::Ref.into();
+    let match_body = synstructure::each_field(&mut type_, &style, |binding| {
+        Some(quote! { #binding.trace(tracer); })
+    });
+
+    let name = &type_.ident;
+    let (impl_generics, ty_generics, mut where_clause) = type_.generics.split_for_impl();
+    for param in &type_.generics.ty_params {
+        where_clause.predicates.push(syn::WherePredicate::BoundPredicate(syn::WhereBoundPredicate {
+            bound_lifetimes: Vec::new(),
+            bounded_ty: syn::Ty::Path(None, param.ident.clone().into()),
+            bounds: vec![syn::TyParamBound::Trait(
+                syn::PolyTraitRef {
+                    bound_lifetimes: Vec::new(),
+                    trait_ref: syn::parse_path("::dom::bindings::trace::JSTraceable").unwrap(),
+                },
+                syn::TraitBoundModifier::None
+            )],
+        }))
+    }
+
+    let tokens = quote! {
+        #type_
+
+        impl #impl_generics ::dom::bindings::trace::JSTraceable for #name #ty_generics #where_clause {
+            #[inline]
+            #[allow(unused_variables, unused_imports)]
+            fn trace(&self, tracer: *mut ::js::jsapi::JSTracer) {
+                use ::dom::bindings::trace::JSTraceable;
+                match *self {
+                    #match_body
+                }
+            }
+        }
+    };
+
+    tokens.to_string()
+}
diff --git a/components/layout/Cargo.toml b/components/layout/Cargo.toml
index 917b6b82e73..338a5cf4075 100644
--- a/components/layout/Cargo.toml
+++ b/components/layout/Cargo.toml
@@ -20,7 +20,7 @@ fnv = "1.0"
 gfx = {path = "../gfx"}
 gfx_traits = {path = "../gfx_traits"}
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 ipc-channel = "0.5"
 libc = "0.2"
 log = "0.3.5"
diff --git a/components/layout/lib.rs b/components/layout/lib.rs
index 935a7631e23..57fd7b3e98e 100644
--- a/components/layout/lib.rs
+++ b/components/layout/lib.rs
@@ -8,12 +8,12 @@
 #![feature(custom_derive)]
 #![feature(nonzero)]
 #![feature(plugin)]
+#![feature(proc_macro)]
 #![feature(raw)]
 #![feature(step_by)]
 
 #![deny(unsafe_code)]
 
-#![plugin(heapsize_plugin)]
 #![plugin(plugins)]
 
 extern crate app_units;
@@ -29,6 +29,7 @@ extern crate fnv;
 extern crate gfx;
 extern crate gfx_traits;
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate ipc_channel;
 extern crate libc;
 #[macro_use]
diff --git a/components/layout_thread/Cargo.toml b/components/layout_thread/Cargo.toml
index 368c6142980..d704b9b18c0 100644
--- a/components/layout_thread/Cargo.toml
+++ b/components/layout_thread/Cargo.toml
@@ -17,7 +17,7 @@ fnv = "1.0"
 gfx = {path = "../gfx"}
 gfx_traits = {path = "../gfx_traits"}
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 ipc-channel = "0.5"
 layout = {path = "../layout"}
 layout_traits = {path = "../layout_traits"}
diff --git a/components/layout_thread/lib.rs b/components/layout_thread/lib.rs
index 3cb0522b42e..f330054441b 100644
--- a/components/layout_thread/lib.rs
+++ b/components/layout_thread/lib.rs
@@ -9,8 +9,8 @@
 #![feature(custom_derive)]
 #![feature(mpsc_select)]
 #![feature(plugin)]
+#![feature(proc_macro)]
 
-#![plugin(heapsize_plugin)]
 #![plugin(plugins)]
 
 extern crate app_units;
@@ -21,6 +21,7 @@ extern crate fnv;
 extern crate gfx;
 extern crate gfx_traits;
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate ipc_channel;
 #[macro_use]
 extern crate layout;
diff --git a/components/msg/Cargo.toml b/components/msg/Cargo.toml
index ddc0b3e3f85..8d045a3e91f 100644
--- a/components/msg/Cargo.toml
+++ b/components/msg/Cargo.toml
@@ -13,7 +13,7 @@ path = "lib.rs"
 bitflags = "0.7"
 cssparser = {version = "0.7", features = ["heap_size", "serde-serialization"]}
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 plugins = {path = "../plugins"}
 serde = "0.8"
 serde_derive = "0.8"
diff --git a/components/msg/lib.rs b/components/msg/lib.rs
index a2cc4bbab71..788229acb64 100644
--- a/components/msg/lib.rs
+++ b/components/msg/lib.rs
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #![feature(custom_attribute, custom_derive, plugin, proc_macro, rustc_attrs, structural_match)]
-#![plugin(heapsize_plugin, plugins)]
+#![plugin(plugins)]
 
 #![deny(unsafe_code)]
 
@@ -11,6 +11,7 @@
 #[macro_use]
 extern crate bitflags;
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate serde;
 #[macro_use]
 extern crate serde_derive;
diff --git a/components/net_traits/Cargo.toml b/components/net_traits/Cargo.toml
index 851b115a4c8..cf9b152d815 100644
--- a/components/net_traits/Cargo.toml
+++ b/components/net_traits/Cargo.toml
@@ -14,7 +14,7 @@ util = {path = "../util"}
 msg = {path = "../msg"}
 ipc-channel = "0.5"
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 hyper = "0.9.9"
 hyper_serde = "0.1.4"
 image = "0.10"
diff --git a/components/net_traits/lib.rs b/components/net_traits/lib.rs
index 7b666a0cde8..ff13b4e9c26 100644
--- a/components/net_traits/lib.rs
+++ b/components/net_traits/lib.rs
@@ -4,19 +4,17 @@
 
 #![feature(box_syntax)]
 #![feature(custom_attribute)]
-#![feature(custom_derive)]
-#![feature(plugin)]
 #![feature(proc_macro)]
 #![feature(rustc_attrs)]
 #![feature(slice_patterns)]
 #![feature(step_by)]
 #![feature(structural_match)]
-#![plugin(heapsize_plugin)]
 
 #![deny(unsafe_code)]
 
 extern crate cookie as cookie_rs;
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate hyper;
 extern crate hyper_serde;
 extern crate image as piston_image;
diff --git a/components/plugins/jstraceable.rs b/components/plugins/jstraceable.rs
index e41d56765ce..f1e0ed496b6 100644
--- a/components/plugins/jstraceable.rs
+++ b/components/plugins/jstraceable.rs
@@ -2,13 +2,10 @@
  * 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/. */
 
-use syntax::ast::{Expr, MetaItem, Mutability};
+use syntax::ast::MetaItem;
 use syntax::codemap::Span;
 use syntax::ext::base::{Annotatable, ExtCtxt};
-use syntax::ext::build::AstBuilder;
 use syntax::ptr::P;
-use syntax_ext::deriving::generic::{Struct, Substructure, TraitDef, ty};
-use syntax_ext::deriving::generic::{combine_substructure, EnumMatching, FieldInfo, MethodDef};
 
 pub fn expand_dom_struct(cx: &mut ExtCtxt, sp: Span, _: &MetaItem, anno: Annotatable) -> Annotatable {
     if let Annotatable::Item(item) = anno {
@@ -29,63 +26,3 @@ pub fn expand_dom_struct(cx: &mut ExtCtxt, sp: Span, _: &MetaItem, anno: Annotat
         anno
     }
 }
-
-/// Provides the hook to expand `#[derive(JSTraceable)]` into an implementation of `JSTraceable`
-///
-/// The expansion basically calls `trace()` on all of the fields of the struct/enum, erroring if they do not
-/// implement the method.
-pub fn expand_jstraceable(cx: &mut ExtCtxt, span: Span, mitem: &MetaItem, item: &Annotatable,
-                          push: &mut FnMut(Annotatable)) {
-    let trait_def = TraitDef {
-        is_unsafe: false,
-        span: span,
-        attributes: Vec::new(),
-        path: ty::Path::new(vec!("dom", "bindings", "trace", "JSTraceable")),
-        additional_bounds: Vec::new(),
-        generics: ty::LifetimeBounds::empty(),
-        supports_unions: true,
-        methods: vec![
-            MethodDef {
-                name: "trace",
-                generics: ty::LifetimeBounds::empty(),
-                explicit_self: ty::borrowed_explicit_self(),
-                args: vec!(ty::Ptr(box ty::Literal(ty::Path::new(vec!("js", "jsapi", "JSTracer"))),
-                                   ty::Raw(Mutability::Mutable))),
-                ret_ty: ty::nil_ty(),
-                attributes: vec![quote_attr!(cx, #[inline])],
-                is_unsafe: false,
-                combine_substructure: combine_substructure(box jstraceable_substructure),
-                unify_fieldless_variants: true,
-            }
-        ],
-        associated_types: vec![],
-    };
-    trait_def.expand(cx, mitem, item, push)
-}
-
-// Mostly copied from syntax::ext::deriving::hash
-/// Defines how the implementation for `trace()` is to be generated
-fn jstraceable_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure) -> P<Expr> {
-    let state_expr = if substr.nonself_args.len() == 1 {
-        &substr.nonself_args[0]
-    } else {
-        cx.span_bug(trait_span, "incorrect number of arguments in `jstraceable`")
-    };
-    let trace_ident = substr.method_ident;
-    let call_trace = |span, thing_expr| {
-        let expr = cx.expr_method_call(span, thing_expr, trace_ident, vec!(state_expr.clone()));
-        cx.stmt_expr(expr)
-    };
-    let mut stmts = Vec::new();
-
-    let fields = match *substr.fields {
-        Struct(_, ref fs) | EnumMatching(_, _, ref fs) => fs,
-        _ => cx.span_bug(trait_span, "impossible substructure in `jstraceable`")
-    };
-
-    for &FieldInfo { ref self_, span, .. } in fields {
-        stmts.push(call_trace(span, self_.clone()));
-    }
-
-    cx.expr_block(cx.block(trait_span, stmts))
-}
diff --git a/components/plugins/lib.rs b/components/plugins/lib.rs
index e62243e8024..5ebb54aba31 100644
--- a/components/plugins/lib.rs
+++ b/components/plugins/lib.rs
@@ -25,7 +25,6 @@ extern crate rustc;
 extern crate rustc_plugin;
 #[macro_use]
 extern crate syntax;
-extern crate syntax_ext;
 
 use rustc_plugin::Registry;
 use syntax::ext::base::*;
@@ -44,8 +43,6 @@ mod utils;
 #[plugin_registrar]
 pub fn plugin_registrar(reg: &mut Registry) {
     reg.register_syntax_extension(intern("dom_struct"), MultiModifier(box jstraceable::expand_dom_struct));
-    reg.register_syntax_extension(intern("derive_JSTraceable"),
-                                  MultiDecorator(box jstraceable::expand_jstraceable));
     reg.register_syntax_extension(intern("_generate_reflector"),
                                   MultiDecorator(box reflector::expand_reflector));
     reg.register_late_lint_pass(box lints::unrooted_must_root::UnrootedPass::new());
diff --git a/components/range/Cargo.toml b/components/range/Cargo.toml
index 9b643dda018..36c35d97fdb 100644
--- a/components/range/Cargo.toml
+++ b/components/range/Cargo.toml
@@ -12,7 +12,7 @@ path = "lib.rs"
 
 [dependencies]
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 num-traits = "0.1.32"
 rustc-serialize = "0.3"
 serde = "0.8"
diff --git a/components/range/lib.rs b/components/range/lib.rs
index c3b16ccb4e7..0451d332643 100644
--- a/components/range/lib.rs
+++ b/components/range/lib.rs
@@ -2,17 +2,14 @@
  * 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(custom_derive)]
-#![feature(plugin)]
 #![feature(proc_macro)]
 #![feature(rustc_attrs)]
 #![feature(step_trait)]
 
-#![plugin(heapsize_plugin)]
-
 #![deny(unsafe_code)]
 
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate num_traits;
 extern crate rustc_serialize;
 extern crate serde;
diff --git a/components/script/Cargo.toml b/components/script/Cargo.toml
index 7d98caec983..577b00c088a 100644
--- a/components/script/Cargo.toml
+++ b/components/script/Cargo.toml
@@ -35,13 +35,14 @@ euclid = "0.10.1"
 fnv = "1.0"
 gfx_traits = {path = "../gfx_traits"}
 heapsize = "0.3.6"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 html5ever = {version = "0.5.1", features = ["heap_size", "unstable"]}
 hyper = "0.9.9"
 hyper_serde = "0.1.4"
 image = "0.10"
 ipc-channel = "0.5"
 js = {git = "https://github.com/servo/rust-mozjs", features = ["promises"]}
+jstraceable_derive = {path = "../jstraceable_derive"}
 libc = "0.2"
 log = "0.3.5"
 mime = "0.2.1"
diff --git a/components/script/dom/bindings/js.rs b/components/script/dom/bindings/js.rs
index 779cb62d634..11aed4be9af 100644
--- a/components/script/dom/bindings/js.rs
+++ b/components/script/dom/bindings/js.rs
@@ -625,6 +625,12 @@ impl<T: Reflectable> Deref for Root<T> {
     }
 }
 
+impl<T: Reflectable + HeapSizeOf> HeapSizeOf for Root<T> {
+    fn heap_size_of_children(&self) -> usize {
+        (**self).heap_size_of_children()
+    }
+}
+
 impl<T: Reflectable> PartialEq for Root<T> {
     fn eq(&self, other: &Self) -> bool {
         self.ptr == other.ptr
diff --git a/components/script/dom/bindings/num.rs b/components/script/dom/bindings/num.rs
index fde24d08421..03b0c743f9f 100644
--- a/components/script/dom/bindings/num.rs
+++ b/components/script/dom/bindings/num.rs
@@ -4,6 +4,7 @@
 
 //! The `Finite<T>` struct.
 
+use heapsize::HeapSizeOf;
 use num_traits::Float;
 use std::ops::Deref;
 
@@ -38,3 +39,9 @@ impl<T: Float> Deref for Finite<T> {
         value
     }
 }
+
+impl<T: Float + HeapSizeOf> HeapSizeOf for Finite<T> {
+    fn heap_size_of_children(&self) -> usize {
+        (**self).heap_size_of_children()
+    }
+}
diff --git a/components/script/dom/validitystate.rs b/components/script/dom/validitystate.rs
index 938320b7254..c6bb0761f3c 100644
--- a/components/script/dom/validitystate.rs
+++ b/components/script/dom/validitystate.rs
@@ -10,8 +10,8 @@ use dom::element::Element;
 use dom::window::Window;
 
 // https://html.spec.whatwg.org/multipage/#validity-states
-#[derive_JSTraceable]
-#[derive_HeapSizeOf]
+#[derive(JSTraceable)]
+#[derive(HeapSizeOf)]
 pub enum ValidityStatus {
     ValueMissing,
     TypeMismatch,
diff --git a/components/script/lib.rs b/components/script/lib.rs
index c679a5950d3..ed4fcf8b5ee 100644
--- a/components/script/lib.rs
+++ b/components/script/lib.rs
@@ -14,6 +14,7 @@
 #![feature(on_unimplemented)]
 #![feature(optin_builtin_traits)]
 #![feature(plugin)]
+#![feature(proc_macro)]
 #![feature(slice_patterns)]
 #![feature(stmt_expr_attributes)]
 #![feature(try_from)]
@@ -24,7 +25,6 @@
 
 #![doc = "The script crate contains all matters DOM."]
 
-#![plugin(heapsize_plugin)]
 #![plugin(phf_macros)]
 #![plugin(plugins)]
 
@@ -46,6 +46,7 @@ extern crate euclid;
 extern crate fnv;
 extern crate gfx_traits;
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate html5ever;
 extern crate hyper;
 extern crate hyper_serde;
@@ -53,6 +54,8 @@ extern crate image;
 extern crate ipc_channel;
 #[macro_use]
 extern crate js;
+#[macro_use]
+extern crate jstraceable_derive;
 extern crate libc;
 #[macro_use]
 extern crate log;
diff --git a/components/script_layout_interface/Cargo.toml b/components/script_layout_interface/Cargo.toml
index 452972bd3dd..ba5a7bd7449 100644
--- a/components/script_layout_interface/Cargo.toml
+++ b/components/script_layout_interface/Cargo.toml
@@ -17,7 +17,7 @@ cssparser = {version = "0.7", features = ["heap_size", "serde-serialization"]}
 euclid = "0.10.1"
 gfx_traits = {path = "../gfx_traits"}
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 ipc-channel = "0.5"
 libc = "0.2"
 log = "0.3.5"
diff --git a/components/script_layout_interface/lib.rs b/components/script_layout_interface/lib.rs
index ebef2d20271..70ffcf15524 100644
--- a/components/script_layout_interface/lib.rs
+++ b/components/script_layout_interface/lib.rs
@@ -12,7 +12,7 @@
 #![feature(custom_derive)]
 #![feature(nonzero)]
 #![feature(plugin)]
-#![plugin(heapsize_plugin)]
+#![feature(proc_macro)]
 #![plugin(plugins)]
 
 extern crate app_units;
@@ -25,6 +25,7 @@ extern crate cssparser;
 extern crate euclid;
 extern crate gfx_traits;
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate ipc_channel;
 extern crate libc;
 #[macro_use]
diff --git a/components/script_traits/Cargo.toml b/components/script_traits/Cargo.toml
index fede5c350dc..2b901f7c73d 100644
--- a/components/script_traits/Cargo.toml
+++ b/components/script_traits/Cargo.toml
@@ -17,7 +17,7 @@ devtools_traits = {path = "../devtools_traits"}
 euclid = "0.10.1"
 gfx_traits = {path = "../gfx_traits"}
 heapsize = "0.3.0"
-heapsize_plugin = "0.1.2"
+heapsize_derive = "0.1"
 hyper = "0.9.9"
 hyper_serde = "0.1.4"
 ipc-channel = "0.5"
diff --git a/components/script_traits/lib.rs b/components/script_traits/lib.rs
index 93021981294..edb9aca62a5 100644
--- a/components/script_traits/lib.rs
+++ b/components/script_traits/lib.rs
@@ -7,7 +7,7 @@
 //! to depend on script.
 
 #![feature(custom_derive, plugin, proc_macro, rustc_attrs, structural_match)]
-#![plugin(heapsize_plugin, plugins)]
+#![plugin(plugins)]
 #![deny(missing_docs)]
 #![deny(unsafe_code)]
 
@@ -17,6 +17,7 @@ extern crate devtools_traits;
 extern crate euclid;
 extern crate gfx_traits;
 extern crate heapsize;
+#[macro_use] extern crate heapsize_derive;
 extern crate hyper;
 extern crate hyper_serde;
 extern crate ipc_channel;
diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index 8e1d888f497..a2da0461e02 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -85,7 +85,7 @@ dependencies = [
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -109,8 +109,8 @@ dependencies = [
 
 [[package]]
 name = "azure"
-version = "0.9.0"
-source = "git+https://github.com/servo/rust-azure#4890bf0b438cbeff4cd269441f4db19a413024ca"
+version = "0.9.1"
+source = "git+https://github.com/servo/rust-azure#d817e7e1b1af6896f778d0cc0693e0a1573f3a48"
 dependencies = [
  "cmake 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -119,10 +119,10 @@ dependencies = [
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "freetype 0.1.1 (git+https://github.com/servo/rust-freetype)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo-egl 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo-freetype-sys 4.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo-skia 0.20130412.24 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -160,7 +160,7 @@ dependencies = [
  "byteorder 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -222,7 +222,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "canvas"
 version = "0.0.1"
 dependencies = [
- "azure 0.9.0 (git+https://github.com/servo/rust-azure)",
+ "azure 0.9.1 (git+https://github.com/servo/rust-azure)",
  "canvas_traits 0.0.1",
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "gleam 0.2.24 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -239,15 +239,15 @@ dependencies = [
 name = "canvas_traits"
 version = "0.0.1"
 dependencies = [
- "azure 0.9.0 (git+https://github.com/servo/rust-azure)",
+ "azure 0.9.1 (git+https://github.com/servo/rust-azure)",
  "cssparser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "webrender_traits 0.8.0 (git+https://github.com/servo/webrender)",
 ]
 
@@ -330,8 +330,8 @@ dependencies = [
  "plugins 0.0.1",
  "profile_traits 0.0.1",
  "script_traits 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "style_traits 0.0.1",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -363,8 +363,8 @@ dependencies = [
  "profile_traits 0.0.1",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "script_traits 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "style_traits 0.0.1",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
@@ -416,7 +416,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -442,7 +442,7 @@ dependencies = [
  "encoding 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -508,8 +508,8 @@ dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "plugins 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
@@ -521,13 +521,13 @@ version = "0.0.1"
 dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper_serde 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -678,7 +678,7 @@ dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -776,7 +776,7 @@ name = "gfx"
 version = "0.0.1"
 dependencies = [
  "app_units 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "azure 0.9.0 (git+https://github.com/servo/rust-azure)",
+ "azure 0.9.1 (git+https://github.com/servo/rust-azure)",
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -790,7 +790,7 @@ dependencies = [
  "gfx_traits 0.0.1",
  "harfbuzz-sys 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -801,8 +801,8 @@ dependencies = [
  "plugins 0.0.1",
  "range 0.0.1",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo-fontconfig 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "simd 0.1.1 (git+https://github.com/huonw/simd)",
  "smallvec 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -832,12 +832,12 @@ name = "gfx_traits"
 version = "0.0.1"
 dependencies = [
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
  "range 0.0.1",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -927,6 +927,16 @@ dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "heapsize_derive"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "quote 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "synstructure 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "heapsize_plugin"
 version = "0.1.6"
@@ -968,8 +978,8 @@ dependencies = [
  "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mac 0.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_codegen 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_codegen 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "tendril 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1010,7 +1020,7 @@ dependencies = [
  "cookie 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1076,7 +1086,7 @@ dependencies = [
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "uuid 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1108,6 +1118,15 @@ dependencies = [
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "jstraceable_derive"
+version = "0.0.1"
+dependencies = [
+ "quote 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "synstructure 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "kernel32-sys"
 version = "0.2.2"
@@ -1132,7 +1151,7 @@ name = "layout"
 version = "0.0.1"
 dependencies = [
  "app_units 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "azure 0.9.0 (git+https://github.com/servo/rust-azure)",
+ "azure 0.9.1 (git+https://github.com/servo/rust-azure)",
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "canvas_traits 0.0.1",
  "cssparser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1141,7 +1160,7 @@ dependencies = [
  "gfx 0.0.1",
  "gfx_traits 0.0.1",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1156,7 +1175,7 @@ dependencies = [
  "script_layout_interface 0.0.1",
  "script_traits 0.0.1",
  "selectors 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
@@ -1180,13 +1199,13 @@ name = "layout_thread"
 version = "0.0.1"
 dependencies = [
  "app_units 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "azure 0.9.0 (git+https://github.com/servo/rust-azure)",
+ "azure 0.9.1 (git+https://github.com/servo/rust-azure)",
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "gfx 0.0.1",
  "gfx_traits 0.0.1",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "layout 0.0.1",
  "layout_traits 0.0.1",
@@ -1201,7 +1220,7 @@ dependencies = [
  "script_layout_interface 0.0.1",
  "script_traits 0.0.1",
  "selectors 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1333,7 +1352,7 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1342,8 +1361,8 @@ version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_codegen 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_codegen 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1385,10 +1404,10 @@ dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cssparser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "webrender_traits 0.8.0 (git+https://github.com/servo/webrender)",
 ]
 
@@ -1471,7 +1490,7 @@ version = "0.0.1"
 dependencies = [
  "cookie 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper_serde 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "image 0.10.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1480,8 +1499,8 @@ dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1594,7 +1613,7 @@ dependencies = [
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "osmesa-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "user32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "x11 2.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1715,42 +1734,42 @@ dependencies = [
 
 [[package]]
 name = "phf"
-version = "0.7.18"
+version = "0.7.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_shared 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_codegen"
-version = "0.7.18"
+version = "0.7.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_generator 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_generator 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_generator"
-version = "0.7.18"
+version = "0.7.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_shared 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_macros"
-version = "0.7.18"
+version = "0.7.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_generator 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_generator 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_shared"
-version = "0.7.18"
+version = "0.7.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1793,6 +1812,15 @@ dependencies = [
  "num-iter 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "post-expansion"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "quote 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "profile"
 version = "0.0.1"
@@ -1804,8 +1832,8 @@ dependencies = [
  "plugins 0.0.1",
  "profile_traits 0.0.1",
  "regex 0.1.76 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "task_info 0.0.1",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1829,8 +1857,8 @@ dependencies = [
  "energymon 0.2.0 (git+https://github.com/energymon/energymon-rust.git)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "signpost 0.1.0 (git+https://github.com/pcwalton/signpost.git)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
@@ -1863,11 +1891,11 @@ name = "range"
 version = "0.0.1"
 dependencies = [
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1944,13 +1972,14 @@ dependencies = [
  "fnv 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "gfx_traits 0.0.1",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "html5ever 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper_serde 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "image 0.10.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "js 0.1.3 (git+https://github.com/servo/rust-mozjs)",
+ "jstraceable_derive 0.0.1",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1961,8 +1990,8 @@ dependencies = [
  "offscreen_gl_context 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "open 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_macros 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_macros 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
  "profile_traits 0.0.1",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1973,7 +2002,7 @@ dependencies = [
  "script_layout_interface 0.0.1",
  "script_traits 0.0.1",
  "selectors 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
@@ -1999,7 +2028,7 @@ dependencies = [
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "gfx_traits 0.0.1",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2036,7 +2065,7 @@ dependencies = [
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "gfx_traits 0.0.1",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper_serde 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2047,8 +2076,8 @@ dependencies = [
  "plugins 0.0.1",
  "profile_traits 0.0.1",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "style_traits 0.0.1",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2072,14 +2101,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "0.8.11"
+version = "0.8.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde_codegen"
-version = "0.8.12"
+version = "0.8.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "post-expansion 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_codegen_internals 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "syn 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2095,10 +2125,11 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "0.8.12"
+version = "0.8.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde_codegen 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "post-expansion 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_codegen 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2109,7 +2140,7 @@ dependencies = [
  "dtoa 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2252,9 +2283,9 @@ dependencies = [
  "debug_unreachable 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_generator 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_generator 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2270,7 +2301,7 @@ dependencies = [
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2287,8 +2318,8 @@ dependencies = [
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "selectors 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "style_traits 0.0.1",
@@ -2325,10 +2356,10 @@ dependencies = [
  "cssparser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2340,6 +2371,15 @@ dependencies = [
  "unicode-xid 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "synstructure"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "quote 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "target_build_utils"
 version = "0.1.1"
@@ -2495,7 +2535,7 @@ dependencies = [
  "idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2534,8 +2574,8 @@ dependencies = [
  "num_cpus 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "xdg 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2553,7 +2593,7 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2695,8 +2735,8 @@ dependencies = [
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "offscreen_gl_context 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2778,8 +2818,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mac 0.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_codegen 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_codegen 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "tendril 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2794,7 +2834,7 @@ dependencies = [
 "checksum app_units 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "636ee56f12e31dbc11dc0a1ac6004f08b04e6e6595963716fc8130e90d4e04cf"
 "checksum arrayvec 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)" = "80a137392e2e92ce7387c063d98a11f0d47115426c5f8759657af3c7b385c860"
 "checksum audio-video-metadata 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "03da2550cb89fe3faf218c179261c26cf7891c4234707c15f5d09ebb32ae2400"
-"checksum azure 0.9.0 (git+https://github.com/servo/rust-azure)" = "<none>"
+"checksum azure 0.9.1 (git+https://github.com/servo/rust-azure)" = "<none>"
 "checksum backtrace 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "346d7644f0b5f9bc73082d3b2236b69a05fd35cce0cfa3724e184e6a5c9e2a2f"
 "checksum backtrace-sys 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ff73785ae8e06bb4a7b09e09f06d7434f9748b86d2f67bdf334b603354497e08"
 "checksum bincode 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9fbba641f73d3e74a5431d4a6d9e42a70bcce76d466d796c852ba1db31ba41bc"
@@ -2863,6 +2903,7 @@ dependencies = [
 "checksum glx 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b280007fa9c7442cfd1e0b1addb8d1a59240267110e8705f8f7e2c7bfb7e2f72"
 "checksum harfbuzz-sys 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "6b76113246f5c089dcf272cf89c3f61168a4d77b50ec5b2c1fab8c628c9ea762"
 "checksum heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8c80e194758495a9109566134dc06e42ea0423987d6ceca016edaa90381b3549"
+"checksum heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "35abd70c0f2d6260b973ea908d7e4e3da729fc2acf18def91f034a2a4f824ff8"
 "checksum heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c9a70a1ef0122b54e0553f1d960b686c40d33a7953bc63029509a7649c8ee2c4"
 "checksum heartbeats-simple 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "78c0810722eacd0bdd3f1f691524bd9900bf8fed1947f6b883c10ddecd2560b1"
 "checksum heartbeats-simple-sys 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "53c4b67617665d7f4172f381f9843c1bec6a4fccc9a9226529e5b1be40dc1301"
@@ -2929,14 +2970,15 @@ dependencies = [
 "checksum owning_ref 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8d91377085359426407a287ab16884a0111ba473aa6844ff01d4ec20ce3d75e7"
 "checksum parking_lot 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3562f3de7bdff194212be82366abf5c6565aff8a433b71c53c63d0e7c9913878"
 "checksum parking_lot_core 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "06f24c980718110494e9cfb7db7438895c3f54505101bb6170329d5e43a53f64"
-"checksum phf 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)" = "971dd94df0728890a6fd7cf01b61e3f1fc84acb308175d196a9ceb2aa0e04b90"
-"checksum phf_codegen 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)" = "29fa7fa119b1dd493cc17d69052281ad38767c6e5f6f29263bbd57027aee7f71"
-"checksum phf_generator 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)" = "e3497bdd90ab6e6f9295d4877ac89b74dd0635304b9c89a6677f17d87bb5ef8d"
-"checksum phf_macros 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)" = "8afd16b67d77b27647f1c0e49457d814cc0e48dad567b3808d783cad7c0eecaa"
-"checksum phf_shared 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)" = "69668cdb43ef62e348ec04e4acea0ba200f9945230523fb1f1c1f462f27a8e2b"
+"checksum phf 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)" = "95cb41511b13e592110b5c8323c1d489513b6db919148f909b8b804be73a74b5"
+"checksum phf_codegen 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)" = "8b74506ea0ea5f6adbef815c1e964daa2d395e7c29b7196d390a67a31fa2a020"
+"checksum phf_generator 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)" = "d5e1d4b224dfc609b025ea389e6eb9b850ae5814272880d7d75d71acc3d57c88"
+"checksum phf_macros 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)" = "4bbc5912dc544d28df8e58ed9a132c13701758f0a96c8bd08ecc1f23eea27358"
+"checksum phf_shared 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)" = "9f3d84458c4040eb4b9e626cb551a2dc46d92ea96b1c30331aa9fce9abd2c438"
 "checksum pkg-config 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8cee804ecc7eaf201a4a207241472cc870e825206f6c031e3ee2a72fa425f2fa"
 "checksum pnacl-build-helper 1.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "61c9231d31aea845007443d62fcbb58bb6949ab9c18081ee1e09920e0cf1118b"
 "checksum png 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "06208e2ee243e3118a55dda9318f821f206d8563fb8d4df258767f8e62bb0997"
+"checksum post-expansion 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "31a834a6060acaef74a8d878f6ca37a2b86fefe042bbfe70689ba587e42526f9"
 "checksum quickersort 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e952ea7699262481636004bc4ab8afaccf2bc13f91b79d1aee6617bd8fc39651"
 "checksum quote 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5a5071e94480b788e482dd13592c7221b75da33717fd0fd74aee76a01c40b35b"
 "checksum rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "2791d88c6defac799c3f20d74f094ca33b9332612d9aef9078519c82e4fe04a5"
@@ -2950,10 +2992,10 @@ dependencies = [
 "checksum scoped_threadpool 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "3ef399c8893e8cb7aa9696e895427fab3a6bf265977bb96e126f24ddd2cda85a"
 "checksum selectors 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a7f8d3498861f4486e7e1d5c56eabf2b0e461f92bcbf45a3ac30cae0f3d5cdd0"
 "checksum semver 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)" = "d4f410fedcf71af0345d7607d246e7ad15faaadd49d240ee3b24e5dc21a820ac"
-"checksum serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)" = "15db662ce4b837aac5731c52fe732d84a00f909763236289587cb7ca6985f6d8"
-"checksum serde_codegen 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)" = "d9b64ecfe57712501e861b303982b549cfd56aed0ebf58823b36093d1807d69b"
+"checksum serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)" = "784e249221c84265caeb1e2fe48aeada86f67f5acb151bd3903c4585969e43f6"
+"checksum serde_codegen 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)" = "c3b932a3bb4d729e39aa04cc5e2f2ac70ba239a5a151d2dc9a1956fd6a2f7c15"
 "checksum serde_codegen_internals 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "318f7e77aa5187391d74aaf4553d2189f56b0ce25e963414c951b97877ffdcec"
-"checksum serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)" = "2c7c2b01e85ca1330ba408325f6e85b8b4bf980320b0bd3bc366510e457c443f"
+"checksum serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)" = "c6a73f0e5fc193668afa2a714bf8397063af46e6c8df72686e53fbac15b2e38c"
 "checksum serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0e10f8a9d94b06cf5d3bef66475f04c8ff90950f1be7004c357ff9472ccbaebc"
 "checksum servo-egl 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "21069a884c33fe6ee596975e1f3849ed88c4ec857fbaf11d33672d8ebe051217"
 "checksum servo-fontconfig 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "93f799b649b4a2bf362398910eca35240704c7e765e780349b2bb1070d892262"
@@ -2970,6 +3012,7 @@ dependencies = [
 "checksum solicit 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "172382bac9424588d7840732b250faeeef88942e37b6e35317dce98cafdd75b2"
 "checksum string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)" = "f585562982abf1301fa97bd2226a3c4c5712b8beb9bcd16ed72b5e96810f8657"
 "checksum syn 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "96fed4e825d615b0ffd74dabb1dc4c5a078ab44e2c8004798f01510edf6cf515"
+"checksum synstructure 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c93b5595e44343867746223dd8de40c15e53e89f5fb252e3d20e0187a698647c"
 "checksum target_build_utils 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7a1be18d4d908e4e5697908de04fdd5099505463fc8eaf1ceb8133ae486936aa"
 "checksum tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "87974a6f5c1dfb344d733055601650059a3363de2a6104819293baff662132d6"
 "checksum tempfile 2.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "9270837a93bad1b1dac18fe67e786b3c960513af86231f6f4f57fddd594ff0c8"
diff --git a/components/style/Cargo.toml b/components/style/Cargo.toml
index a7807220263..caa79f56d93 100644
--- a/components/style/Cargo.toml
+++ b/components/style/Cargo.toml
@@ -14,7 +14,7 @@ doctest = false
 
 [features]
 gecko = ["nsstring_vendor"]
-servo = ["serde/unstable", "serde", "serde_derive", "heapsize_plugin",
+servo = ["serde/unstable", "serde", "serde_derive", "heapsize_derive",
          "style_traits/servo", "app_units/plugins", "string_cache",
          "cssparser/heap_size", "cssparser/serde-serialization",
          "url/heap_size", "plugins", "parking_lot/nightly"]
@@ -30,7 +30,7 @@ encoding = "0.2"
 euclid = "0.10.1"
 fnv = "1.0"
 heapsize = "0.3.0"
-heapsize_plugin = {version = "0.1.2", optional = true}
+heapsize_derive = {version = "0.1", optional = true}
 lazy_static = "0.2"
 log = "0.3.5"
 libc = "0.2"
diff --git a/components/style/lib.rs b/components/style/lib.rs
index de708d7a637..f79d50ead6d 100644
--- a/components/style/lib.rs
+++ b/components/style/lib.rs
@@ -29,7 +29,6 @@
 #![cfg_attr(feature = "servo", feature(proc_macro))]
 #![cfg_attr(feature = "servo", feature(rustc_attrs))]
 #![cfg_attr(feature = "servo", feature(structural_match))]
-#![cfg_attr(feature = "servo", plugin(heapsize_plugin))]
 #![cfg_attr(feature = "servo", plugin(plugins))]
 
 #![deny(warnings)]
@@ -59,6 +58,7 @@ extern crate encoding;
 extern crate euclid;
 extern crate fnv;
 extern crate heapsize;
+#[cfg(feature = "servo")] #[macro_use] extern crate heapsize_derive;
 #[allow(unused_extern_crates)]
 #[macro_use]
 extern crate lazy_static;
diff --git a/components/style_traits/Cargo.toml b/components/style_traits/Cargo.toml
index 9064faaa457..af4c9314381 100644
--- a/components/style_traits/Cargo.toml
+++ b/components/style_traits/Cargo.toml
@@ -10,7 +10,7 @@ name = "style_traits"
 path = "lib.rs"
 
 [features]
-servo = ["heapsize", "heapsize_plugin", "serde", "serde_derive",
+servo = ["heapsize", "heapsize_derive", "serde", "serde_derive",
          "cssparser/heap_size", "cssparser/serde-serialization"]
 
 [dependencies]
@@ -18,7 +18,7 @@ app_units = "0.3"
 cssparser = "0.7"
 euclid = "0.10.1"
 heapsize = {version = "0.3.0", optional = true}
-heapsize_plugin = {version = "0.1.2", optional = true}
+heapsize_derive = {version = "0.1", optional = true}
 rustc-serialize = "0.3"
 serde = {version = "0.8", optional = true}
 serde_derive = {version = "0.8", optional = true}
diff --git a/components/style_traits/lib.rs b/components/style_traits/lib.rs
index 449aca96ee3..c6a1d574a90 100644
--- a/components/style_traits/lib.rs
+++ b/components/style_traits/lib.rs
@@ -16,13 +16,13 @@
 #![cfg_attr(feature = "servo", feature(proc_macro))]
 #![cfg_attr(feature = "servo", feature(rustc_attrs))]
 #![cfg_attr(feature = "servo", feature(structural_match))]
-#![cfg_attr(feature = "servo", plugin(heapsize_plugin))]
 
 extern crate app_units;
 #[macro_use]
 extern crate cssparser;
 extern crate euclid;
 #[cfg(feature = "servo")] extern crate heapsize;
+#[cfg(feature = "servo")] #[macro_use] extern crate heapsize_derive;
 extern crate rustc_serialize;
 #[cfg(feature = "servo")] extern crate serde;
 #[cfg(feature = "servo")] #[macro_use] extern crate serde_derive;
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock
index 1ed57350e23..b14fc7f0c41 100644
--- a/ports/cef/Cargo.lock
+++ b/ports/cef/Cargo.lock
@@ -58,7 +58,7 @@ dependencies = [
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -82,8 +82,8 @@ dependencies = [
 
 [[package]]
 name = "azure"
-version = "0.9.0"
-source = "git+https://github.com/servo/rust-azure#4890bf0b438cbeff4cd269441f4db19a413024ca"
+version = "0.9.1"
+source = "git+https://github.com/servo/rust-azure#d817e7e1b1af6896f778d0cc0693e0a1573f3a48"
 dependencies = [
  "cmake 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -92,10 +92,10 @@ dependencies = [
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "freetype 0.1.1 (git+https://github.com/servo/rust-freetype)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo-egl 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo-freetype-sys 4.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo-skia 0.20130412.24 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -133,7 +133,7 @@ dependencies = [
  "byteorder 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -195,7 +195,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "canvas"
 version = "0.0.1"
 dependencies = [
- "azure 0.9.0 (git+https://github.com/servo/rust-azure)",
+ "azure 0.9.1 (git+https://github.com/servo/rust-azure)",
  "canvas_traits 0.0.1",
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "gleam 0.2.24 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -212,15 +212,15 @@ dependencies = [
 name = "canvas_traits"
 version = "0.0.1"
 dependencies = [
- "azure 0.9.0 (git+https://github.com/servo/rust-azure)",
+ "azure 0.9.1 (git+https://github.com/servo/rust-azure)",
  "cssparser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "webrender_traits 0.8.0 (git+https://github.com/servo/webrender)",
 ]
 
@@ -287,8 +287,8 @@ dependencies = [
  "plugins 0.0.1",
  "profile_traits 0.0.1",
  "script_traits 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "style_traits 0.0.1",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -320,8 +320,8 @@ dependencies = [
  "profile_traits 0.0.1",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "script_traits 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "style_traits 0.0.1",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
@@ -373,7 +373,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -399,7 +399,7 @@ dependencies = [
  "encoding 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -465,8 +465,8 @@ dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "plugins 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
@@ -478,13 +478,13 @@ version = "0.0.1"
 dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper_serde 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -594,7 +594,7 @@ dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -692,7 +692,7 @@ name = "gfx"
 version = "0.0.1"
 dependencies = [
  "app_units 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "azure 0.9.0 (git+https://github.com/servo/rust-azure)",
+ "azure 0.9.1 (git+https://github.com/servo/rust-azure)",
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -706,7 +706,7 @@ dependencies = [
  "gfx_traits 0.0.1",
  "harfbuzz-sys 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -717,8 +717,8 @@ dependencies = [
  "plugins 0.0.1",
  "range 0.0.1",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo-fontconfig 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "simd 0.1.1 (git+https://github.com/huonw/simd)",
  "smallvec 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -739,12 +739,12 @@ name = "gfx_traits"
 version = "0.0.1"
 dependencies = [
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
  "range 0.0.1",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -834,6 +834,16 @@ dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "heapsize_derive"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "quote 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "synstructure 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "heapsize_plugin"
 version = "0.1.6"
@@ -875,8 +885,8 @@ dependencies = [
  "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mac 0.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_codegen 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_codegen 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "tendril 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -917,7 +927,7 @@ dependencies = [
  "cookie 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -983,7 +993,7 @@ dependencies = [
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "uuid 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1015,6 +1025,15 @@ dependencies = [
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "jstraceable_derive"
+version = "0.0.1"
+dependencies = [
+ "quote 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "synstructure 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "kernel32-sys"
 version = "0.2.2"
@@ -1039,7 +1058,7 @@ name = "layout"
 version = "0.0.1"
 dependencies = [
  "app_units 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "azure 0.9.0 (git+https://github.com/servo/rust-azure)",
+ "azure 0.9.1 (git+https://github.com/servo/rust-azure)",
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "canvas_traits 0.0.1",
  "cssparser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1048,7 +1067,7 @@ dependencies = [
  "gfx 0.0.1",
  "gfx_traits 0.0.1",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1063,7 +1082,7 @@ dependencies = [
  "script_layout_interface 0.0.1",
  "script_traits 0.0.1",
  "selectors 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
@@ -1080,13 +1099,13 @@ name = "layout_thread"
 version = "0.0.1"
 dependencies = [
  "app_units 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "azure 0.9.0 (git+https://github.com/servo/rust-azure)",
+ "azure 0.9.1 (git+https://github.com/servo/rust-azure)",
  "euclid 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "gfx 0.0.1",
  "gfx_traits 0.0.1",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "layout 0.0.1",
  "layout_traits 0.0.1",
@@ -1101,7 +1120,7 @@ dependencies = [
  "script_layout_interface 0.0.1",
  "script_traits 0.0.1",
  "selectors 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "style 0.0.1",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1233,7 +1252,7 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1242,8 +1261,8 @@ version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_codegen 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_codegen 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1285,10 +1304,10 @@ dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cssparser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "webrender_traits 0.8.0 (git+https://github.com/servo/webrender)",
 ]
 
@@ -1349,7 +1368,7 @@ version = "0.0.1"
 dependencies = [
  "cookie 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper_serde 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "image 0.10.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1358,8 +1377,8 @@ dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1465,7 +1484,7 @@ dependencies = [
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "osmesa-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "user32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "x11 2.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1586,42 +1605,42 @@ dependencies = [
 
 [[package]]
 name = "phf"
-version = "0.7.18"
+version = "0.7.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_shared 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_codegen"
-version = "0.7.18"
+version = "0.7.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_generator 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_generator 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_generator"
-version = "0.7.18"
+version = "0.7.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_shared 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_macros"
-version = "0.7.18"
+version = "0.7.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_generator 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_generator 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_shared"
-version = "0.7.18"
+version = "0.7.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1655,6 +1674,15 @@ dependencies = [
  "num-iter 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "post-expansion"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "quote 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "profile"
 version = "0.0.1"
@@ -1666,8 +1694,8 @@ dependencies = [
  "plugins 0.0.1",
  "profile_traits 0.0.1",
  "regex 0.1.76 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "task_info 0.0.1",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1680,8 +1708,8 @@ version = "0.0.1"
 dependencies = [
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "plugins 0.0.1",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
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 dependencies = [
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- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
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  "js 0.1.3 (git+https://github.com/servo/rust-mozjs)",
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@@ -1812,8 +1841,8 @@ dependencies = [
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- "phf_macros 0.7.18 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1824,7 +1853,7 @@ dependencies = [
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  "selectors 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1850,7 +1879,7 @@ dependencies = [
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- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1877,7 +1906,7 @@ dependencies = [
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- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1913,14 +1942,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "0.8.11"
+version = "0.8.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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-version = "0.8.12"
+version = "0.8.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "post-expansion 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1936,10 +1966,11 @@ dependencies = [
 
 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde_codegen 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "serde_codegen 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
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- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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- "heapsize_plugin 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
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 ]
 
 [[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
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 [[package]]
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 [[package]]
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 [[package]]
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 "checksum quickersort 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e952ea7699262481636004bc4ab8afaccf2bc13f91b79d1aee6617bd8fc39651"
 "checksum quote 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5a5071e94480b788e482dd13592c7221b75da33717fd0fd74aee76a01c40b35b"
 "checksum rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "2791d88c6defac799c3f20d74f094ca33b9332612d9aef9078519c82e4fe04a5"
@@ -2802,10 +2844,10 @@ dependencies = [
 "checksum scoped_threadpool 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "3ef399c8893e8cb7aa9696e895427fab3a6bf265977bb96e126f24ddd2cda85a"
 "checksum selectors 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a7f8d3498861f4486e7e1d5c56eabf2b0e461f92bcbf45a3ac30cae0f3d5cdd0"
 "checksum semver 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)" = "d4f410fedcf71af0345d7607d246e7ad15faaadd49d240ee3b24e5dc21a820ac"
-"checksum serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)" = "15db662ce4b837aac5731c52fe732d84a00f909763236289587cb7ca6985f6d8"
-"checksum serde_codegen 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)" = "d9b64ecfe57712501e861b303982b549cfd56aed0ebf58823b36093d1807d69b"
+"checksum serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)" = "784e249221c84265caeb1e2fe48aeada86f67f5acb151bd3903c4585969e43f6"
+"checksum serde_codegen 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)" = "c3b932a3bb4d729e39aa04cc5e2f2ac70ba239a5a151d2dc9a1956fd6a2f7c15"
 "checksum serde_codegen_internals 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "318f7e77aa5187391d74aaf4553d2189f56b0ce25e963414c951b97877ffdcec"
-"checksum serde_derive 0.8.12 (registry+https://github.com/rust-lang/crates.io-index)" = "2c7c2b01e85ca1330ba408325f6e85b8b4bf980320b0bd3bc366510e457c443f"
+"checksum serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)" = "c6a73f0e5fc193668afa2a714bf8397063af46e6c8df72686e53fbac15b2e38c"
 "checksum serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0e10f8a9d94b06cf5d3bef66475f04c8ff90950f1be7004c357ff9472ccbaebc"
 "checksum servo-egl 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "21069a884c33fe6ee596975e1f3849ed88c4ec857fbaf11d33672d8ebe051217"
 "checksum servo-fontconfig 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "93f799b649b4a2bf362398910eca35240704c7e765e780349b2bb1070d892262"
@@ -2822,6 +2864,7 @@ dependencies = [
 "checksum solicit 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "172382bac9424588d7840732b250faeeef88942e37b6e35317dce98cafdd75b2"
 "checksum string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)" = "f585562982abf1301fa97bd2226a3c4c5712b8beb9bcd16ed72b5e96810f8657"
 "checksum syn 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "96fed4e825d615b0ffd74dabb1dc4c5a078ab44e2c8004798f01510edf6cf515"
+"checksum synstructure 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c93b5595e44343867746223dd8de40c15e53e89f5fb252e3d20e0187a698647c"
 "checksum target_build_utils 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7a1be18d4d908e4e5697908de04fdd5099505463fc8eaf1ceb8133ae486936aa"
 "checksum tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "87974a6f5c1dfb344d733055601650059a3363de2a6104819293baff662132d6"
 "checksum tempfile 2.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "9270837a93bad1b1dac18fe67e786b3c960513af86231f6f4f57fddd594ff0c8"
diff --git a/ports/geckolib/Cargo.lock b/ports/geckolib/Cargo.lock
index 330d42ca439..b2a72c41748 100644
--- a/ports/geckolib/Cargo.lock
+++ b/ports/geckolib/Cargo.lock
@@ -34,7 +34,7 @@ dependencies = [
  "heapsize 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -139,7 +139,7 @@ dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -319,7 +319,7 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "0.8.11"
+version = "0.8.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -547,7 +547,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum regex-syntax 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "279401017ae31cf4e15344aa3f085d0e2e5c1e70067289ef906906fdbe92c8fd"
 "checksum rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)" = "6159e4e6e559c81bd706afe9c8fd68f547d3e851ce12e76b1de7914bab61691b"
 "checksum selectors 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a7f8d3498861f4486e7e1d5c56eabf2b0e461f92bcbf45a3ac30cae0f3d5cdd0"
-"checksum serde 0.8.11 (registry+https://github.com/rust-lang/crates.io-index)" = "15db662ce4b837aac5731c52fe732d84a00f909763236289587cb7ca6985f6d8"
+"checksum serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)" = "784e249221c84265caeb1e2fe48aeada86f67f5acb151bd3903c4585969e43f6"
 "checksum smallvec 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "fcc8d19212aacecf95e4a7a2179b26f7aeb9732a915cf01f05b0d3e044865410"
 "checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
 "checksum thread_local 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "55dd963dbaeadc08aa7266bf7f91c3154a7805e32bb94b820b769d2ef3b4744d"
diff --git a/rust-nightly-date b/rust-nightly-date
index 759d0344f7b..bf4dabf5836 100644
--- a/rust-nightly-date
+++ b/rust-nightly-date
@@ -1 +1 @@
-2016-10-27
+2016-11-02