diff --git a/components/allocator/Cargo.toml b/components/allocator/Cargo.toml
index 1fb3299e591..037e7e6e9ae 100644
--- a/components/allocator/Cargo.toml
+++ b/components/allocator/Cargo.toml
@@ -3,6 +3,7 @@ name = "servo_allocator"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/atoms/Cargo.toml b/components/atoms/Cargo.toml
index 9e6e07899e6..493088f7f24 100644
--- a/components/atoms/Cargo.toml
+++ b/components/atoms/Cargo.toml
@@ -3,6 +3,7 @@ name = "servo_atoms"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 build = "build.rs"
 
diff --git a/components/bluetooth/Cargo.toml b/components/bluetooth/Cargo.toml
index 6f203b72e96..d6dbf63db4a 100644
--- a/components/bluetooth/Cargo.toml
+++ b/components/bluetooth/Cargo.toml
@@ -3,6 +3,7 @@ name = "bluetooth"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/bluetooth_traits/Cargo.toml b/components/bluetooth_traits/Cargo.toml
index f21f289898c..d8cb171de3c 100644
--- a/components/bluetooth_traits/Cargo.toml
+++ b/components/bluetooth_traits/Cargo.toml
@@ -3,6 +3,7 @@ name = "bluetooth_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/canvas/Cargo.toml b/components/canvas/Cargo.toml
index 1ccbe5f9bd8..e411e415e99 100644
--- a/components/canvas/Cargo.toml
+++ b/components/canvas/Cargo.toml
@@ -3,6 +3,7 @@ name = "canvas"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/canvas_traits/Cargo.toml b/components/canvas_traits/Cargo.toml
index edfb382d395..ae8eb8e4ec4 100644
--- a/components/canvas_traits/Cargo.toml
+++ b/components/canvas_traits/Cargo.toml
@@ -3,6 +3,7 @@ name = "canvas_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/channel/Cargo.toml b/components/channel/Cargo.toml
index 0eb5655eaaa..5b30d622830 100644
--- a/components/channel/Cargo.toml
+++ b/components/channel/Cargo.toml
@@ -3,6 +3,7 @@ name = "servo_channel"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/compositing/Cargo.toml b/components/compositing/Cargo.toml
index 2da835c463f..ed991671c9f 100644
--- a/components/compositing/Cargo.toml
+++ b/components/compositing/Cargo.toml
@@ -3,6 +3,7 @@ name = "compositing"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 build = "build.rs"
 
diff --git a/components/compositing/compositor.rs b/components/compositing/compositor.rs
index e69606ee4d2..175fbaf5ed8 100644
--- a/components/compositing/compositor.rs
+++ b/components/compositing/compositor.rs
@@ -20,7 +20,7 @@ use msg::constellation_msg::{PipelineId, PipelineIndex, PipelineNamespaceId};
 use net_traits::image::base::Image;
 #[cfg(feature = "gleam")]
 use net_traits::image::base::PixelFormat;
-use profile_traits::time::{self, ProfilerCategory, profile};
+use profile_traits::time::{self as profile_time, ProfilerCategory, profile};
 use script_traits::{AnimationState, AnimationTickType, ConstellationMsg, LayoutControlMsg};
 use script_traits::{MouseButton, MouseEventType, ScrollState, TouchEventType, TouchId};
 use script_traits::{UntrustedNodeAddress, WindowSizeData, WindowSizeType};
@@ -150,7 +150,7 @@ pub struct IOCompositor<Window: WindowMethods> {
     constellation_chan: Sender<ConstellationMsg>,
 
     /// The channel on which messages can be sent to the time profiler.
-    time_profiler_chan: time::ProfilerChan,
+    time_profiler_chan: profile_time::ProfilerChan,
 
     /// Touch input state machine
     touch_handler: TouchHandler,
@@ -366,7 +366,7 @@ impl<Window: WindowMethods> IOCompositor<Window> {
         // Tell the profiler, memory profiler, and scrolling timer to shut down.
         if let Ok((sender, receiver)) = ipc::channel() {
             self.time_profiler_chan
-                .send(time::ProfilerMsg::Exit(sender));
+                .send(profile_time::ProfilerMsg::Exit(sender));
             let _ = receiver.recv();
         }
 
diff --git a/components/config/Cargo.toml b/components/config/Cargo.toml
index 648a048a03b..f08bf834deb 100644
--- a/components/config/Cargo.toml
+++ b/components/config/Cargo.toml
@@ -3,6 +3,7 @@ name = "servo_config"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/constellation/Cargo.toml b/components/constellation/Cargo.toml
index a036f0036d2..1e57a10e6f2 100644
--- a/components/constellation/Cargo.toml
+++ b/components/constellation/Cargo.toml
@@ -3,6 +3,7 @@ name = "constellation"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/debugger/Cargo.toml b/components/debugger/Cargo.toml
index f03fd899332..2c9b38a4a70 100644
--- a/components/debugger/Cargo.toml
+++ b/components/debugger/Cargo.toml
@@ -3,6 +3,7 @@ name = "debugger"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/deny_public_fields/Cargo.toml b/components/deny_public_fields/Cargo.toml
index f1637cf48e4..bc396ee720a 100644
--- a/components/deny_public_fields/Cargo.toml
+++ b/components/deny_public_fields/Cargo.toml
@@ -3,6 +3,7 @@ name = "deny_public_fields"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/devtools/Cargo.toml b/components/devtools/Cargo.toml
index ba0b4d172c6..706550068ff 100644
--- a/components/devtools/Cargo.toml
+++ b/components/devtools/Cargo.toml
@@ -3,6 +3,7 @@ name = "devtools"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/devtools_traits/Cargo.toml b/components/devtools_traits/Cargo.toml
index 26769dfba3d..f3a1868ff4a 100644
--- a/components/devtools_traits/Cargo.toml
+++ b/components/devtools_traits/Cargo.toml
@@ -3,6 +3,7 @@ name = "devtools_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/domobject_derive/Cargo.toml b/components/domobject_derive/Cargo.toml
index 80b6125bbab..0ab7212cafe 100644
--- a/components/domobject_derive/Cargo.toml
+++ b/components/domobject_derive/Cargo.toml
@@ -3,6 +3,7 @@ name = "domobject_derive"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/embedder_traits/Cargo.toml b/components/embedder_traits/Cargo.toml
index eecedda4c8e..68f2917e2c2 100644
--- a/components/embedder_traits/Cargo.toml
+++ b/components/embedder_traits/Cargo.toml
@@ -3,6 +3,7 @@ name = "embedder_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/geometry/Cargo.toml b/components/geometry/Cargo.toml
index b9ad20b665d..a88b601e562 100644
--- a/components/geometry/Cargo.toml
+++ b/components/geometry/Cargo.toml
@@ -3,6 +3,7 @@ name = "servo_geometry"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/gfx/Cargo.toml b/components/gfx/Cargo.toml
index a58a9880715..418f718c3f4 100644
--- a/components/gfx/Cargo.toml
+++ b/components/gfx/Cargo.toml
@@ -4,6 +4,7 @@ name = "gfx"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/gfx_traits/Cargo.toml b/components/gfx_traits/Cargo.toml
index 8d558d19ba0..c52dbc18912 100644
--- a/components/gfx_traits/Cargo.toml
+++ b/components/gfx_traits/Cargo.toml
@@ -3,6 +3,7 @@ name = "gfx_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/jstraceable_derive/Cargo.toml b/components/jstraceable_derive/Cargo.toml
index 0b85fac1045..ecd035d1c09 100644
--- a/components/jstraceable_derive/Cargo.toml
+++ b/components/jstraceable_derive/Cargo.toml
@@ -3,6 +3,7 @@ name = "jstraceable_derive"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/layout/Cargo.toml b/components/layout/Cargo.toml
index 82dfc992004..9a960b51305 100644
--- a/components/layout/Cargo.toml
+++ b/components/layout/Cargo.toml
@@ -3,6 +3,7 @@ name = "layout"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/layout_thread/Cargo.toml b/components/layout_thread/Cargo.toml
index 23fbf91e677..30369ad2780 100644
--- a/components/layout_thread/Cargo.toml
+++ b/components/layout_thread/Cargo.toml
@@ -3,6 +3,7 @@ name = "layout_thread"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/layout_traits/Cargo.toml b/components/layout_traits/Cargo.toml
index 162c7add7b4..881e67315e8 100644
--- a/components/layout_traits/Cargo.toml
+++ b/components/layout_traits/Cargo.toml
@@ -3,6 +3,7 @@ name = "layout_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/metrics/Cargo.toml b/components/metrics/Cargo.toml
index 608d7ffaa0a..ebc90d5f5cd 100644
--- a/components/metrics/Cargo.toml
+++ b/components/metrics/Cargo.toml
@@ -3,6 +3,7 @@ name = "metrics"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/msg/Cargo.toml b/components/msg/Cargo.toml
index bfe3483113b..815e8962a58 100644
--- a/components/msg/Cargo.toml
+++ b/components/msg/Cargo.toml
@@ -3,6 +3,7 @@ name = "msg"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/net/Cargo.toml b/components/net/Cargo.toml
index 099f2c17f71..798c85da1bd 100644
--- a/components/net/Cargo.toml
+++ b/components/net/Cargo.toml
@@ -3,6 +3,7 @@ name = "net"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 autotests = false  # Inhibit lookup for tests/*.rs without [[test]] sections
 
diff --git a/components/net/fetch/methods.rs b/components/net/fetch/methods.rs
index 9ce078799f1..0e744e0de26 100644
--- a/components/net/fetch/methods.rs
+++ b/components/net/fetch/methods.rs
@@ -544,7 +544,7 @@ fn scheme_fetch(
                     *done_chan = Some((done_sender.clone(), done_receiver));
                     *response.body.lock().unwrap() = ResponseBody::Receiving(vec![]);
 
-                    let mut res_body = response.body.clone();
+                    let res_body = response.body.clone();
 
                     let cancellation_listener = context.cancellation_listener.clone();
 
@@ -589,7 +589,7 @@ fn scheme_fetch(
                                     return;
                                 }
                                 let length = {
-                                    let mut buffer = reader.fill_buf().unwrap().to_vec();
+                                    let buffer = reader.fill_buf().unwrap().to_vec();
                                     let mut buffer_len = buffer.len();
                                     if let ResponseBody::Receiving(ref mut body) =
                                         *res_body.lock().unwrap()
diff --git a/components/net_traits/Cargo.toml b/components/net_traits/Cargo.toml
index 4d89992ff11..e7534bf77ee 100644
--- a/components/net_traits/Cargo.toml
+++ b/components/net_traits/Cargo.toml
@@ -3,6 +3,7 @@ name = "net_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/pixels/Cargo.toml b/components/pixels/Cargo.toml
index 0c2e47b07bb..40f14013452 100644
--- a/components/pixels/Cargo.toml
+++ b/components/pixels/Cargo.toml
@@ -3,6 +3,7 @@ name = "pixels"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/profile/Cargo.toml b/components/profile/Cargo.toml
index 890a9aa9336..d9b3a14aecb 100644
--- a/components/profile/Cargo.toml
+++ b/components/profile/Cargo.toml
@@ -3,6 +3,7 @@ name = "profile"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/profile_traits/Cargo.toml b/components/profile_traits/Cargo.toml
index ca9ce8aece6..28553f59de0 100644
--- a/components/profile_traits/Cargo.toml
+++ b/components/profile_traits/Cargo.toml
@@ -3,6 +3,7 @@ name = "profile_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/rand/Cargo.toml b/components/rand/Cargo.toml
index 56e34c6ec27..e41309fe56e 100644
--- a/components/rand/Cargo.toml
+++ b/components/rand/Cargo.toml
@@ -3,6 +3,7 @@ name = "servo_rand"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/range/Cargo.toml b/components/range/Cargo.toml
index 9786f7824f7..8aa28cf8263 100644
--- a/components/range/Cargo.toml
+++ b/components/range/Cargo.toml
@@ -4,6 +4,7 @@ name = "range"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/remutex/Cargo.toml b/components/remutex/Cargo.toml
index 4f471f5378d..94d3ebb4c38 100644
--- a/components/remutex/Cargo.toml
+++ b/components/remutex/Cargo.toml
@@ -3,6 +3,7 @@ name = "servo_remutex"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/script/Cargo.toml b/components/script/Cargo.toml
index 1b77ab3cab7..f2fd91df9bb 100644
--- a/components/script/Cargo.toml
+++ b/components/script/Cargo.toml
@@ -5,6 +5,7 @@ name = "script"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 build = "build.rs"
diff --git a/components/script/dom/audiobuffer.rs b/components/script/dom/audiobuffer.rs
index 149867590e4..2ebdfee5377 100644
--- a/components/script/dom/audiobuffer.rs
+++ b/components/script/dom/audiobuffer.rs
@@ -321,9 +321,8 @@ impl AudioBufferMethods for AudioBuffer {
         typedarray!(in(cx) let js_channel: Float32Array = js_channel);
         if let Ok(mut js_channel) = js_channel {
             let bytes_to_copy = min(self.length - start_in_channel, source.len() as u32) as usize;
-            let mut js_channel_data = unsafe { js_channel.as_mut_slice() };
-            let (_, mut js_channel_data) =
-                js_channel_data.split_at_mut(start_in_channel as usize);
+            let js_channel_data = unsafe { js_channel.as_mut_slice() };
+            let (_, js_channel_data) = js_channel_data.split_at_mut(start_in_channel as usize);
             unsafe {
                 js_channel_data[0..bytes_to_copy].copy_from_slice(&source.as_slice()[0..bytes_to_copy])
             };
diff --git a/components/script/dom/bindings/codegen/CodegenRust.py b/components/script/dom/bindings/codegen/CodegenRust.py
index da0d27ce764..b50efc90207 100644
--- a/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/components/script/dom/bindings/codegen/CodegenRust.py
@@ -5686,7 +5686,11 @@ class CGInterfaceTrait(CGThing):
                     yield name, arguments, rettype
 
         def fmt(arguments):
-            return "".join(", %s: %s" % argument for argument in arguments)
+            keywords = {"async"}
+            return "".join(
+                ", %s: %s" % (name if name not in keywords else "r#" + name, type_)
+                for name, type_ in arguments
+            )
 
         def contains_unsafe_arg(arguments):
             if not arguments or len(arguments) == 0:
@@ -6250,7 +6254,7 @@ class CGDictionary(CGThing):
         d = self.dictionary
         if d.parent:
             initParent = ("{\n"
-                          "    match try!(%s::%s::new(cx, val)) {\n"
+                          "    match r#try!(%s::%s::new(cx, val)) {\n"
                           "        ConversionResult::Success(v) => v,\n"
                           "        ConversionResult::Failure(error) => {\n"
                           "            throw_type_error(cx, &error);\n"
@@ -6396,7 +6400,7 @@ class CGDictionary(CGThing):
         conversion = (
             "{\n"
             "    rooted!(in(cx) let mut rval = UndefinedValue());\n"
-            "    match try!(get_dictionary_property(cx, object.handle(), \"%s\", rval.handle_mut())) {\n"
+            "    match r#try!(get_dictionary_property(cx, object.handle(), \"%s\", rval.handle_mut())) {\n"
             "        true => {\n"
             "%s\n"
             "        },\n"
@@ -7167,7 +7171,7 @@ class CallbackOperationBase(CallbackMethod):
             "methodName": self.methodName
         }
         getCallableFromProp = string.Template(
-            'try!(self.parent.get_callable_property(cx, "${methodName}"))'
+            'r#try!(self.parent.get_callable_property(cx, "${methodName}"))'
         ).substitute(replacements)
         if not self.singleOperation:
             return 'rooted!(in(cx) let callable =\n' + getCallableFromProp + ');\n'
diff --git a/components/script/dom/globalscope.rs b/components/script/dom/globalscope.rs
index 20dd3d0e91e..9e06a707fa3 100644
--- a/components/script/dom/globalscope.rs
+++ b/components/script/dom/globalscope.rs
@@ -53,7 +53,7 @@ use js::rust::wrappers::Evaluate2;
 use libc;
 use msg::constellation_msg::PipelineId;
 use net_traits::{CoreResourceThread, ResourceThreads, IpcSend};
-use profile_traits::{mem, time};
+use profile_traits::{mem as profile_mem, time as profile_time};
 use script_traits::{MsDuration, ScriptToConstellationChan, TimerEvent};
 use script_traits::{TimerEventId, TimerSchedulerMsg, TimerSource};
 use servo_url::{MutableOrigin, ServoUrl};
@@ -97,11 +97,11 @@ pub struct GlobalScope {
 
     /// For sending messages to the memory profiler.
     #[ignore_malloc_size_of = "channels are hard"]
-    mem_profiler_chan: mem::ProfilerChan,
+    mem_profiler_chan: profile_mem::ProfilerChan,
 
     /// For sending messages to the time profiler.
     #[ignore_malloc_size_of = "channels are hard"]
-    time_profiler_chan: time::ProfilerChan,
+    time_profiler_chan: profile_time::ProfilerChan,
 
     /// A handle for communicating messages to the constellation thread.
     #[ignore_malloc_size_of = "channels are hard"]
@@ -160,8 +160,8 @@ impl GlobalScope {
     pub fn new_inherited(
         pipeline_id: PipelineId,
         devtools_chan: Option<IpcSender<ScriptToDevtoolsControlMsg>>,
-        mem_profiler_chan: mem::ProfilerChan,
-        time_profiler_chan: time::ProfilerChan,
+        mem_profiler_chan: profile_mem::ProfilerChan,
+        time_profiler_chan: profile_time::ProfilerChan,
         script_to_constellation_chan: ScriptToConstellationChan,
         scheduler_chan: IpcSender<TimerSchedulerMsg>,
         resource_threads: ResourceThreads,
@@ -337,12 +337,12 @@ impl GlobalScope {
     }
 
     /// Get a sender to the memory profiler thread.
-    pub fn mem_profiler_chan(&self) -> &mem::ProfilerChan {
+    pub fn mem_profiler_chan(&self) -> &profile_mem::ProfilerChan {
         &self.mem_profiler_chan
     }
 
     /// Get a sender to the time profiler thread.
-    pub fn time_profiler_chan(&self) -> &time::ProfilerChan {
+    pub fn time_profiler_chan(&self) -> &profile_time::ProfilerChan {
         &self.time_profiler_chan
     }
 
@@ -513,17 +513,17 @@ impl GlobalScope {
         rval: MutableHandleValue,
         line_number: u32,
     ) -> bool {
-        let metadata = time::TimerMetadata {
+        let metadata = profile_time::TimerMetadata {
             url: if filename.is_empty() {
                 self.get_url().as_str().into()
             } else {
                 filename.into()
             },
-            iframe: time::TimerMetadataFrameType::RootWindow,
-            incremental: time::TimerMetadataReflowType::FirstReflow,
+            iframe: profile_time::TimerMetadataFrameType::RootWindow,
+            incremental: profile_time::TimerMetadataReflowType::FirstReflow,
         };
-        time::profile(
-            time::ProfilerCategory::ScriptEvaluate,
+        profile_time::profile(
+            profile_time::ProfilerCategory::ScriptEvaluate,
             Some(metadata),
             self.time_profiler_chan().clone(),
             || {
diff --git a/components/script/script_thread.rs b/components/script/script_thread.rs
index 18fdff8d777..1837b512f85 100644
--- a/components/script/script_thread.rs
+++ b/components/script/script_thread.rs
@@ -99,8 +99,8 @@ use net_traits::{Metadata, NetworkError, ReferrerPolicy, ResourceThreads};
 use net_traits::image_cache::{ImageCache, PendingImageResponse};
 use net_traits::request::{CredentialsMode, Destination, RedirectMode, RequestInit};
 use net_traits::storage_thread::StorageType;
-use profile_traits::mem::{self, OpaqueSender, ReportsChan};
-use profile_traits::time::{self, ProfilerCategory, profile};
+use profile_traits::mem::{self as profile_mem, OpaqueSender, ReportsChan};
+use profile_traits::time::{self as profile_time, ProfilerCategory, profile};
 use script_layout_interface::message::{self, Msg, NewLayoutThreadInfo, ReflowGoal};
 use script_traits::{CompositorEvent, ConstellationControlMsg};
 use script_traits::{DiscardBrowsingContext, DocumentActivity, EventResult};
@@ -538,10 +538,10 @@ pub struct ScriptThread {
     /// The channel on which the image cache can send messages to ourself.
     image_cache_channel: Sender<ImageCacheMsg>,
     /// For providing contact with the time profiler.
-    time_profiler_chan: time::ProfilerChan,
+    time_profiler_chan: profile_time::ProfilerChan,
 
     /// For providing contact with the memory profiler.
-    mem_profiler_chan: mem::ProfilerChan,
+    mem_profiler_chan: profile_mem::ProfilerChan,
 
     /// For providing instructions to an optional devtools server.
     devtools_chan: Option<IpcSender<ScriptToDevtoolsControlMsg>>,
diff --git a/components/script_layout_interface/Cargo.toml b/components/script_layout_interface/Cargo.toml
index 94e961bd009..b41b501138f 100644
--- a/components/script_layout_interface/Cargo.toml
+++ b/components/script_layout_interface/Cargo.toml
@@ -3,6 +3,7 @@ name = "script_layout_interface"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/script_traits/Cargo.toml b/components/script_traits/Cargo.toml
index 3656990aafe..250c14aa977 100644
--- a/components/script_traits/Cargo.toml
+++ b/components/script_traits/Cargo.toml
@@ -3,6 +3,7 @@ name = "script_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/servo/Cargo.toml b/components/servo/Cargo.toml
index db1a2afb268..c7be421f17c 100644
--- a/components/servo/Cargo.toml
+++ b/components/servo/Cargo.toml
@@ -4,6 +4,7 @@ name = "libservo"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/url/Cargo.toml b/components/url/Cargo.toml
index 46aee70b733..2b0463bd56f 100644
--- a/components/url/Cargo.toml
+++ b/components/url/Cargo.toml
@@ -3,6 +3,7 @@ name = "servo_url"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/webdriver_server/Cargo.toml b/components/webdriver_server/Cargo.toml
index 18d13d309df..f3323385566 100644
--- a/components/webdriver_server/Cargo.toml
+++ b/components/webdriver_server/Cargo.toml
@@ -3,6 +3,7 @@ name = "webdriver_server"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/webvr/Cargo.toml b/components/webvr/Cargo.toml
index b2b3791b725..e42f65cfcaf 100644
--- a/components/webvr/Cargo.toml
+++ b/components/webvr/Cargo.toml
@@ -3,6 +3,7 @@ name = "webvr"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/components/webvr_traits/Cargo.toml b/components/webvr_traits/Cargo.toml
index 4451ccd369a..614e104d5c3 100644
--- a/components/webvr_traits/Cargo.toml
+++ b/components/webvr_traits/Cargo.toml
@@ -3,6 +3,7 @@ name = "webvr_traits"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/ports/libmlservo/Cargo.toml b/ports/libmlservo/Cargo.toml
index 793435db093..7d5d8e1037c 100644
--- a/ports/libmlservo/Cargo.toml
+++ b/ports/libmlservo/Cargo.toml
@@ -3,6 +3,7 @@ name = "libmlservo"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/ports/libsimpleservo/Cargo.toml b/ports/libsimpleservo/Cargo.toml
index 5af57fe8e69..60e8c0596e7 100644
--- a/ports/libsimpleservo/Cargo.toml
+++ b/ports/libsimpleservo/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.0.1"
 build = "build.rs"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 publish = false
 
 [lib]
diff --git a/ports/servo/Cargo.toml b/ports/servo/Cargo.toml
index 094221c62fb..61f31834cba 100644
--- a/ports/servo/Cargo.toml
+++ b/ports/servo/Cargo.toml
@@ -4,6 +4,7 @@ name = "servo"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 build = "build.rs"
 publish = false
 
diff --git a/support/rust-task_info/Cargo.toml b/support/rust-task_info/Cargo.toml
index ea6852ffb3e..2286cc5ccaa 100644
--- a/support/rust-task_info/Cargo.toml
+++ b/support/rust-task_info/Cargo.toml
@@ -4,6 +4,7 @@ name = "task_info"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 
 build = "build.rs"
 
diff --git a/tests/unit/deny_public_fields/Cargo.toml b/tests/unit/deny_public_fields/Cargo.toml
index 679069d2c1b..1fab23f0f8a 100644
--- a/tests/unit/deny_public_fields/Cargo.toml
+++ b/tests/unit/deny_public_fields/Cargo.toml
@@ -3,6 +3,7 @@ name = "deny_public_fields_tests"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 
 [lib]
 path = "lib.rs"
diff --git a/tests/unit/malloc_size_of/Cargo.toml b/tests/unit/malloc_size_of/Cargo.toml
index 80668d5ba61..049c750972f 100644
--- a/tests/unit/malloc_size_of/Cargo.toml
+++ b/tests/unit/malloc_size_of/Cargo.toml
@@ -3,6 +3,7 @@ name = "malloc_size_of_tests"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 
 [lib]
 path = "lib.rs"
diff --git a/tests/unit/metrics/Cargo.toml b/tests/unit/metrics/Cargo.toml
index 7a4636345d7..23db807945d 100644
--- a/tests/unit/metrics/Cargo.toml
+++ b/tests/unit/metrics/Cargo.toml
@@ -3,6 +3,7 @@ name = "metrics_tests"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 
 [lib]
 name = "metrics_tests"
diff --git a/tests/unit/profile/Cargo.toml b/tests/unit/profile/Cargo.toml
index 707941e4846..9e608a7c3ce 100644
--- a/tests/unit/profile/Cargo.toml
+++ b/tests/unit/profile/Cargo.toml
@@ -3,6 +3,7 @@ name = "profile_tests"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 
 [lib]
 name = "profile_tests"
diff --git a/tests/unit/script/Cargo.toml b/tests/unit/script/Cargo.toml
index 4a5d7f346b9..a59179ce3e5 100644
--- a/tests/unit/script/Cargo.toml
+++ b/tests/unit/script/Cargo.toml
@@ -3,6 +3,7 @@ name = "script_tests"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 
 [lib]
 name = "script_tests"
diff --git a/tests/unit/script_plugins/Cargo.toml b/tests/unit/script_plugins/Cargo.toml
index 8a41b62aa8f..309440a9466 100644
--- a/tests/unit/script_plugins/Cargo.toml
+++ b/tests/unit/script_plugins/Cargo.toml
@@ -3,6 +3,7 @@ name = "script_plugins_tests"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
 license = "MPL-2.0"
+edition = "2018"
 
 [lib]
 path = "lib.rs"