diff --git a/Cargo.lock b/Cargo.lock
index ba7b84b668e..0c9ba3738e8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -157,7 +157,7 @@ dependencies = [
  "clap 2.28.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "peeking_take_while 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -218,7 +218,7 @@ name = "blurmac"
 version = "0.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "objc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -278,7 +278,7 @@ dependencies = [
  "fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "gleam 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "offscreen_gl_context 0.14.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo_config 0.0.1",
@@ -400,15 +400,6 @@ dependencies = [
  "cc 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "coco"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "scopeguard 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "cocoa"
 version = "0.14.0"
@@ -436,7 +427,7 @@ dependencies = [
  "image 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "net_traits 0.0.1",
  "nonzero 0.0.1",
@@ -471,7 +462,7 @@ dependencies = [
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "layout_traits 0.0.1",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "metrics 0.0.1",
  "msg 0.0.1",
  "net 0.0.1",
@@ -535,6 +526,37 @@ dependencies = [
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "crossbeam-deque"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "crossbeam-epoch 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "crossbeam-epoch"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "arrayvec 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "cssparser"
 version = "0.23.2"
@@ -640,7 +662,7 @@ dependencies = [
 name = "debugger"
 version = "0.0.1"
 dependencies = [
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "ws 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -687,7 +709,7 @@ dependencies = [
  "hyper 0.10.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper_serde 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -817,7 +839,7 @@ name = "env_logger"
 version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -910,11 +932,6 @@ dependencies = [
  "mac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "futures"
-version = "0.1.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "fxhash"
 version = "0.2.1"
@@ -929,7 +946,7 @@ version = "0.0.1"
 source = "git+https://github.com/servo/gaol#227ff0bae1eb1b44a273c6c5610debfe214991ee"
 dependencies = [
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -956,7 +973,7 @@ dependencies = [
  "cstr 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "nsstring 0.1.0",
  "parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -992,7 +1009,7 @@ dependencies = [
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "malloc_size_of_derive 0.0.1",
  "msg 0.0.1",
@@ -1043,7 +1060,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "khronos_api 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "xml-rs 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1123,7 +1140,7 @@ name = "html5ever"
 version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "mac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "markup5ever 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1143,7 +1160,7 @@ dependencies = [
  "base64 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "httparse 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1199,7 +1216,7 @@ dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "enum_primitive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "gif 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "jpeg-decoder 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jpeg-decoder 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-iter 0.1.33 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-rational 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1231,7 +1248,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "hyper 0.10.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1303,11 +1320,11 @@ dependencies = [
 
 [[package]]
 name = "jpeg-decoder"
-version = "0.1.13"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1353,7 +1370,7 @@ dependencies = [
  "html5ever 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "msg 0.0.1",
  "net_traits 0.0.1",
@@ -1361,7 +1378,7 @@ dependencies = [
  "parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "profile_traits 0.0.1",
  "range 0.0.1",
- "rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "script_layout_interface 0.0.1",
  "script_traits 0.0.1",
  "selectors 0.19.0",
@@ -1398,7 +1415,7 @@ dependencies = [
  "layout_traits 0.0.1",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "metrics 0.0.1",
  "msg 0.0.1",
@@ -1406,7 +1423,7 @@ dependencies = [
  "parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "profile_traits 0.0.1",
  "range 0.0.1",
- "rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "script 0.0.1",
  "script_layout_interface 0.0.1",
  "script_traits 0.0.1",
@@ -1501,7 +1518,7 @@ dependencies = [
  "gleam 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "layout_thread 0.0.1",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "net 0.0.1",
  "net_traits 0.0.1",
@@ -1535,8 +1552,19 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.3.8"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "log"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "lzw"
@@ -1621,6 +1649,11 @@ dependencies = [
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "memoffset"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "metadeps"
 version = "1.1.2"
@@ -1637,7 +1670,7 @@ version = "0.0.1"
 dependencies = [
  "gfx_traits 0.0.1",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "malloc_size_of_derive 0.0.1",
  "msg 0.0.1",
@@ -1669,7 +1702,7 @@ name = "mime"
 version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1701,7 +1734,7 @@ dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazycell 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1732,7 +1765,7 @@ dependencies = [
  "cmake 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "mozjs_sys 0.50.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1789,7 +1822,7 @@ dependencies = [
  "immeta 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime_guess 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1833,7 +1866,7 @@ dependencies = [
  "image 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "malloc_size_of_derive 0.0.1",
  "msg 0.0.1",
@@ -1957,7 +1990,7 @@ dependencies = [
  "gleam 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libloading 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "objc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "osmesa-sys 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2118,7 +2151,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "binary-space-partition 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.16.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2160,7 +2193,7 @@ dependencies = [
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jemalloc-sys 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "profile_traits 0.0.1",
  "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2187,7 +2220,7 @@ dependencies = [
  "energy-monitor 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "energymon 0.3.0 (git+https://github.com/energymon/energymon-rust.git)",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo_config 0.0.1",
  "signpost 0.1.0 (git+https://github.com/pcwalton/signpost.git)",
@@ -2227,20 +2260,20 @@ dependencies = [
 
 [[package]]
 name = "rayon"
-version = "0.8.2"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "rayon-core 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon-core 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rayon-core"
-version = "1.2.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "coco 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2294,7 +2327,7 @@ dependencies = [
  "gl_generator 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "gvr-sys 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libloading 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "ovr-mobile-sys 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rust-webvr-api 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2386,7 +2419,7 @@ dependencies = [
  "jstraceable_derive 0.0.1",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "malloc_size_of_derive 0.0.1",
  "metrics 0.0.1",
@@ -2447,7 +2480,7 @@ dependencies = [
  "html5ever 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "malloc_size_of_derive 0.0.1",
  "metrics 0.0.1",
@@ -2523,7 +2556,7 @@ dependencies = [
  "bitflags 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cssparser 0.23.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf 0.7.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf_codegen 0.7.21 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2595,7 +2628,7 @@ dependencies = [
  "gdi32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "gleam 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "libservo 0.0.1",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "net_traits 0.0.1",
  "osmesa-src 17.3.1-devel (git+https://github.com/servo/osmesa-src)",
@@ -2742,7 +2775,7 @@ dependencies = [
  "euclid 0.16.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2768,7 +2801,7 @@ name = "servo_rand"
 version = "0.0.1"
 dependencies = [
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2777,7 +2810,7 @@ name = "servo_remutex"
 version = "0.0.1"
 dependencies = [
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "nonzero 0.0.1",
 ]
 
@@ -2910,7 +2943,7 @@ dependencies = [
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  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "malloc_size_of_derive 0.0.1",
  "matches 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2922,7 +2955,7 @@ dependencies = [
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  "parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "precomputed-hash 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "selectors 0.19.0",
  "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2964,7 +2997,7 @@ dependencies = [
  "euclid 0.16.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "html5ever 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "selectors 0.19.0",
  "serde_json 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "servo_arc 0.1.1",
@@ -3004,7 +3037,7 @@ dependencies = [
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  "geckoservo 0.0.1",
  "libc 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "selectors 0.19.0",
@@ -3310,7 +3343,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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  "hyper 0.10.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3327,7 +3360,7 @@ dependencies = [
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  "image 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
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  "net_traits 0.0.1",
  "regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3343,7 +3376,7 @@ dependencies = [
 [[package]]
 name = "webrender"
 version = "0.57.0"
-source = "git+https://github.com/servo/webrender#7ae075a3238915530144727896e5d275d4057f34"
+source = "git+https://github.com/servo/webrender#681e181d254e867efb07b91436daf5a6aea71d34"
 dependencies = [
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  "bincode 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3358,10 +3391,10 @@ dependencies = [
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  "gleam 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
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  "plane-split 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -3371,7 +3404,7 @@ dependencies = [
 [[package]]
 name = "webrender_api"
 version = "0.57.0"
-source = "git+https://github.com/servo/webrender#7ae075a3238915530144727896e5d275d4057f34"
+source = "git+https://github.com/servo/webrender#681e181d254e867efb07b91436daf5a6aea71d34"
 dependencies = [
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@@ -3394,7 +3427,7 @@ dependencies = [
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  "ipc-channel 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "rust-webvr 0.9.7 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -3456,7 +3489,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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  "httparse 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -3507,7 +3540,7 @@ version = "0.8.1"
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 dependencies = [
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- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3533,7 +3566,7 @@ name = "xml5ever"
 version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
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  "markup5ever 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3583,7 +3616,6 @@ dependencies = [
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 "checksum clipboard-win 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "14cc3e6c075926b96490d5f90d4a5af7be8012a4d8a8698e619655085a7641a3"
 "checksum cmake 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)" = "56d741ea7a69e577f6d06b36b7dff4738f680593dc27a701ffa8506b73ce28bb"
-"checksum coco 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c06169f5beb7e31c7c67ebf5540b8b472d23e3eade3b2ec7d1f5b504a85f91bd"
 "checksum cocoa 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b0c23085dde1ef4429df6e5896b89356d35cdd321fb43afe3e378d010bb5adc6"
 "checksum color_quant 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a475fc4af42d83d28adf72968d9bcfaf035a1a9381642d8e85d8a04957767b0d"
 "checksum cookie 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "746858cae4eae40fff37e1998320068df317bc247dc91a67c6cfa053afdc2abb"
@@ -3591,6 +3623,9 @@ dependencies = [
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 "checksum core-graphics 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fb0ed45fdc32f9ab426238fba9407dfead7bacd7900c9b4dd3f396f46eafdae3"
 "checksum core-text 9.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2bd581c37283d0c23311d179aefbb891f2324ee0405da58a26e8594ab76e5748"
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+"checksum crossbeam-epoch 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "59796cc6cbbdc6bb319161349db0c3250ec73ec7fcb763a51065ec4e2e158552"
+"checksum crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2760899e32a1d58d5abb31129f8fae5de75220bc2176e77ff7c627ae45c918d9"
 "checksum cssparser 0.23.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8a807ac3ab7a217829c2a3b65732b926b2befe6a35f33b4bf8b503692430f223"
 "checksum cssparser-macros 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "079adec4af52bb5275eadd004292028c79eb3c5f5b4ee8086a36d4197032f6df"
 "checksum cstr 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b84061a2fd1af9319e98f733dc1ede67e0b208c455f17f1aa445cc8f4d0e635c"
@@ -3625,7 +3660,6 @@ dependencies = [
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 "checksum freetype 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "398b8a11884898184d55aca9806f002b3cf68f0e860e0cbb4586f834ee39b0e7"
 "checksum futf 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "51f93f3de6ba1794dcd5810b3546d004600a59a98266487c8407bc4b24e398f3"
-"checksum futures 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "55f0008e13fc853f79ea8fc86e931486860d4c4c156cdffb59fa5f7fa833660a"
 "checksum fxhash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
 "checksum gaol 0.0.1 (git+https://github.com/servo/gaol)" = "<none>"
 "checksum gcc 0.3.47 (registry+https://github.com/rust-lang/crates.io-index)" = "5773372df827453bc38d4fd8efe425c7f28b1f54468816183fc8716cfb90bd30"
@@ -3659,7 +3693,7 @@ dependencies = [
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 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum khronos_api 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d867c645cfeb8a7fec503731679eac03ac11b7105aa5a71cb8f8ee5271636add"
 "checksum language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"
@@ -3671,13 +3705,15 @@ dependencies = [
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 "checksum libloading 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "be99f814beb3e9503a786a592c909692bb6d4fc5a695f6ed7987223acfbd5194"
 "checksum libz-sys 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)" = "87f737ad6cc6fd6eefe3d9dc5412f1573865bded441300904d2f42269e140f16"
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 "checksum lzw 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7d947cbb889ed21c2a84be6ffbaebf5b4e0f4340638cba0444907e38b56be084"
 "checksum mac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
 "checksum malloc_buf 0.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "62bb907fe88d54d8d9ce32a3cceab4218ed2f6b7d35617cafe9adf84e43919cb"
 "checksum markup5ever 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c220b3a3d75543b76e5c1fcab6635a8430ab5f9bfa011d003c3787ae0abf4ffa"
 "checksum matches 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "efd7622e3022e1a6eaa602c4cea8912254e5582c9c692e9167714182244801b1"
 "checksum memchr 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1dbccc0e46f1ea47b9f17e6d67c5a96bd27030519c519c9c91327e31275a47b4"
+"checksum memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0f9dc261e2b62d7a622bf416ea3c5245cdd5d9a7fcc428c0d06804dfce1775b3"
 "checksum metadeps 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "73b122901b3a675fac8cecf68dcb2f0d3036193bc861d1ac0e1c337f7d5254c2"
 "checksum mime 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "9d69889cdc6336ed56b174514ce876c4c3dc564cc23dd872e7bca589bb2a36c8"
 "checksum mime_guess 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "76da6df85047af8c0edfa53f48eb1073012ce1cc95c8fedc0a374f659a89dd65"
@@ -3728,8 +3764,8 @@ dependencies = [
 "checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
 "checksum quote 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1eca14c727ad12702eb4b6bfb5a232287dcf8385cb8ca83a3eeaf6519c44c408"
 "checksum rand 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "022e0636ec2519ddae48154b028864bdce4eaf7d35226ab8e65c611be97b189d"
-"checksum rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b614fe08b6665cb9a231d07ac1364b0ef3cb3698f1239ee0c4c3a88a524f54c8"
-"checksum rayon-core 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2c21a92a5dca958fb030787c1158446c6deb7f976399b72fa8074603f169e2a"
+"checksum rayon 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "485541959c8ecc49865526fe6c4de9653dd6e60d829d6edf0be228167b60372d"
+"checksum rayon-core 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9d24ad214285a7729b174ed6d3bcfcb80177807f959d95fafd5bfc5c4f201ac8"
 "checksum redox_syscall 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)" = "29dbdfd4b9df8ab31dec47c6087b7b13cbf4a776f335e4de8efba8288dda075b"
 "checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
 "checksum ref_filter_map 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2b5ceb840e4009da4841ed22a15eb49f64fdd00a2138945c5beacf506b2fb5ed"
diff --git a/components/layout/Cargo.toml b/components/layout/Cargo.toml
index 88552e1ce16..3ff251e28f3 100644
--- a/components/layout/Cargo.toml
+++ b/components/layout/Cargo.toml
@@ -31,7 +31,7 @@ ordered-float = "0.4"
 parking_lot = "0.4"
 profile_traits = {path = "../profile_traits"}
 range = {path = "../range"}
-rayon = "0.8"
+rayon = "1"
 script_layout_interface = {path = "../script_layout_interface"}
 script_traits = {path = "../script_traits"}
 selectors = { path = "../selectors" }
diff --git a/components/layout_thread/Cargo.toml b/components/layout_thread/Cargo.toml
index 661a7f849de..2d4815204e4 100644
--- a/components/layout_thread/Cargo.toml
+++ b/components/layout_thread/Cargo.toml
@@ -33,7 +33,7 @@ net_traits = {path = "../net_traits"}
 parking_lot = "0.4"
 profile_traits = {path = "../profile_traits"}
 range = {path = "../range"}
-rayon = "0.8"
+rayon = "1"
 script = {path = "../script"}
 script_layout_interface = {path = "../script_layout_interface"}
 script_traits = {path = "../script_traits"}
diff --git a/components/layout_thread/lib.rs b/components/layout_thread/lib.rs
index 4e55daaab6a..2ce013f658c 100644
--- a/components/layout_thread/lib.rs
+++ b/components/layout_thread/lib.rs
@@ -457,11 +457,12 @@ impl LayoutThread {
             opts::get().initial_window_size.to_f32() * TypedScale::new(1.0),
             TypedScale::new(opts::get().device_pixels_per_px.unwrap_or(1.0)));
 
-        let configuration =
-            rayon::Configuration::new().num_threads(layout_threads)
-                                       .start_handler(|_| thread_state::initialize_layout_worker_thread());
+        let workers =
+            rayon::ThreadPoolBuilder::new().num_threads(layout_threads)
+                                           .start_handler(|_| thread_state::initialize_layout_worker_thread())
+                                           .build();
         let parallel_traversal = if layout_threads > 1 {
-            Some(rayon::ThreadPool::new(configuration).expect("ThreadPool creation failed"))
+            Some(workers.expect("ThreadPool creation failed"))
         } else {
             None
         };
@@ -709,7 +710,7 @@ impl LayoutThread {
                 let mut txn = webrender_api::Transaction::new();
                 txn.scroll_node_with_id(
                     webrender_api::LayoutPoint::from_untyped(&point),
-                    webrender_api::ScrollNodeIdType::ExternalScrollId(state.scroll_id),
+                    state.scroll_id,
                     webrender_api::ScrollClamping::ToContentBounds
                 );
                 self.webrender_api.send_transaction(self.webrender_document, txn);
diff --git a/components/style/Cargo.toml b/components/style/Cargo.toml
index 915308030b6..e8a5ba3fceb 100644
--- a/components/style/Cargo.toml
+++ b/components/style/Cargo.toml
@@ -54,7 +54,7 @@ ordered-float = "0.4"
 owning_ref = "0.3.3"
 parking_lot = "0.4"
 precomputed-hash = "0.1.1"
-rayon = "0.8.2"
+rayon = "1"
 selectors = { path = "../selectors" }
 serde = {version = "1.0", optional = true, features = ["derive"]}
 servo_arc = { path = "../servo_arc" }
diff --git a/components/style/gecko/global_style_data.rs b/components/style/gecko/global_style_data.rs
index 4a6dcc21805..640cba2e0f1 100644
--- a/components/style/gecko/global_style_data.rs
+++ b/components/style/gecko/global_style_data.rs
@@ -85,7 +85,7 @@ lazy_static! {
         let pool = if num_threads < 1 || unsafe { !bindings::Gecko_ShouldCreateStyleThreadPool() } {
             None
         } else {
-            let configuration = rayon::Configuration::new()
+            let workers = rayon::ThreadPoolBuilder::new()
                 .num_threads(num_threads)
                 // Enable a breadth-first rayon traversal. This causes the work
                 // queue to be always FIFO, rather than FIFO for stealers and
@@ -96,9 +96,9 @@ lazy_static! {
                 .thread_name(thread_name)
                 .start_handler(thread_startup)
                 .exit_handler(thread_shutdown)
-                .stack_size(STYLE_THREAD_STACK_SIZE_KB * 1024);
-            let pool = rayon::ThreadPool::new(configuration).ok();
-            pool
+                .stack_size(STYLE_THREAD_STACK_SIZE_KB * 1024)
+                .build();
+            workers.ok()
         };
 
         StyleThreadPool {
diff --git a/servo-tidy.toml b/servo-tidy.toml
index 6680cf77bbf..ff1f387bcf9 100644
--- a/servo-tidy.toml
+++ b/servo-tidy.toml
@@ -42,6 +42,7 @@ packages = [
   "syn",
   "quote",
   "unicode-xid",
+  "log",
 ]
 # Files that are ignored for all tidy and lint checks.
 files = [
diff --git a/tests/unit/style/Cargo.toml b/tests/unit/style/Cargo.toml
index 24bd83d144c..2386852a696 100644
--- a/tests/unit/style/Cargo.toml
+++ b/tests/unit/style/Cargo.toml
@@ -16,7 +16,7 @@ cssparser = "0.23.0"
 euclid = "0.16"
 html5ever = "0.22"
 parking_lot = "0.4"
-rayon = "0.8"
+rayon = "1"
 serde_json = "1.0"
 selectors = {path = "../../../components/selectors"}
 servo_arc = {path = "../../../components/servo_arc"}
diff --git a/tests/wpt/metadata/css/css-backgrounds/background-repeat/background-repeat-round-roundup.xht.ini b/tests/wpt/metadata/css/css-backgrounds/background-repeat/background-repeat-round-roundup.xht.ini
new file mode 100644
index 00000000000..9ac43f3026c
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/background-repeat/background-repeat-round-roundup.xht.ini
@@ -0,0 +1,3 @@
+[background-repeat-round-roundup.xht]
+  type: reftest
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-backgrounds/background-repeat/background-repeat-round.xht.ini b/tests/wpt/metadata/css/css-backgrounds/background-repeat/background-repeat-round.xht.ini
new file mode 100644
index 00000000000..6a81f9784ed
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/background-repeat/background-repeat-round.xht.ini
@@ -0,0 +1,5 @@
+[background-repeat-round.xht]
+  type: reftest
+  expected:
+    if os == "linux": FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/transform-input-018.html.ini b/tests/wpt/metadata/css/css-backgrounds/background-size-025.html.ini
similarity index 55%
rename from tests/wpt/metadata/css/css-transforms/transform-input-018.html.ini
rename to tests/wpt/metadata/css/css-backgrounds/background-size-025.html.ini
index 3118543e30d..504e0be71d3 100644
--- a/tests/wpt/metadata/css/css-transforms/transform-input-018.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/background-size-025.html.ini
@@ -1,3 +1,3 @@
-[transform-input-018.html]
+[background-size-025.html]
   type: reftest
   expected: FAIL
diff --git a/tests/wpt/metadata/css/css-backgrounds/background-size-027.html.ini b/tests/wpt/metadata/css/css-backgrounds/background-size-027.html.ini
new file mode 100644
index 00000000000..e9039c30e1f
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/background-size-027.html.ini
@@ -0,0 +1,3 @@
+[background-size-027.html]
+  type: reftest
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-backgrounds/background-size/background-size-contain.xht.ini b/tests/wpt/metadata/css/css-backgrounds/background-size/background-size-contain.xht.ini
new file mode 100644
index 00000000000..c6562847c45
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/background-size/background-size-contain.xht.ini
@@ -0,0 +1,3 @@
+[background-size-contain.xht]
+  type: reftest
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-backgrounds/background-size/background-size-cover.xht.ini b/tests/wpt/metadata/css/css-backgrounds/background-size/background-size-cover.xht.ini
new file mode 100644
index 00000000000..0a3c46b2880
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/background-size/background-size-cover.xht.ini
@@ -0,0 +1,3 @@
+[background-size-cover.xht]
+  type: reftest
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-backgrounds/css3-box-shadow.html.ini b/tests/wpt/metadata/css/css-backgrounds/css3-box-shadow.html.ini
new file mode 100644
index 00000000000..09e1da3d4db
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/css3-box-shadow.html.ini
@@ -0,0 +1,5 @@
+[css3-box-shadow.html]
+  type: reftest
+  expected:
+    if os == "linux": FAIL
+
diff --git a/tests/wpt/metadata/css/css-images/gradient-move-stops.html.ini b/tests/wpt/metadata/css/css-images/gradient-move-stops.html.ini
new file mode 100644
index 00000000000..701b8cb4e4c
--- /dev/null
+++ b/tests/wpt/metadata/css/css-images/gradient-move-stops.html.ini
@@ -0,0 +1,3 @@
+[gradient-move-stops.html]
+  type: reftest
+  expected: FAIL
diff --git a/tests/wpt/mozilla/meta/css/border-image-linear-gradient.html.ini b/tests/wpt/mozilla/meta/css/border-image-linear-gradient.html.ini
new file mode 100644
index 00000000000..04804793c48
--- /dev/null
+++ b/tests/wpt/mozilla/meta/css/border-image-linear-gradient.html.ini
@@ -0,0 +1,4 @@
+[border-image-linear-gradient.html]
+  type: reftest
+  expected: FAIL
+