servo: Merge #10847 - Update rustc (from servo:rustup-20160424); r=nox

Source-Repo: https://github.com/servo/servo
Source-Revision: caba731da15e468872e41da466b68ea5a327128a

UltraBlame original commit: ad878a49fcc43b074e42da2f27b88639c4edafdd

Author: marco-c

servo/components/script/lib.rs

@@ -3,14 +3,6 @@
 [
 feature
 (
-ascii
-)
-]
-#
-!
-[
-feature
-(
 as_unsafe_cell
 )
 ]

servo/components/util/lib.rs

@@ -25,24 +25,6 @@ custom_derive
 #
 !
 [
-cfg_attr
-(
-feature
-=
-"
-non
--
-geckolib
-"
-feature
-(
-decode_utf16
-)
-)
-]
-#
-!
-[
 feature
 (
 fnbox

servo/rust-nightly-date

@@ -2,4 +2,4 @@
 -
 04
 -
-12
+24