Update to Rust 1.14.0-nightly (19ac57926 2016-10-08)

A cargo bump and a switch to serde_derive is needed to do this rustup.

components/msg/Cargo.toml

@@ -19,10 +19,10 @@ hyper_serde = "0.1.4"
 ipc-channel = "0.5"
 plugins = {path = "../plugins"}
 serde = "0.8"
-serde_macros = "0.8"
+serde_derive = "0.8"
 url = {version = "1.2", features = ["heap_size", "serde"]}
 
 [dependencies.webrender_traits]
 git = "https://github.com/servo/webrender"
 default_features = false
-features = ["serde_macros"]
+features = ["serde_derive"]

components/msg/lib.rs

@@ -2,8 +2,8 @@
  * 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_attribute, custom_derive, plugin)]
-#![plugin(heapsize_plugin, serde_macros, plugins)]
+#![feature(custom_attribute, custom_derive, plugin, proc_macro, rustc_attrs, structural_match)]
+#![plugin(heapsize_plugin, plugins)]
 
 #![deny(unsafe_code)]
 
@@ -15,6 +15,8 @@ extern crate hyper;
 extern crate hyper_serde;
 extern crate ipc_channel;
 extern crate serde;
+#[macro_use]
+extern crate serde_derive;
 extern crate url;
 extern crate webrender_traits;