diff --git a/components/layout/fragment.rs b/components/layout/fragment.rs
index 254ed8d41778..bfef94fdd0d8 100644
--- a/components/layout/fragment.rs
+++ b/components/layout/fragment.rs
@@ -23,7 +23,7 @@ use inline::{InlineMetrics, LAST_FRAGMENT_OF_ELEMENT};
 use ipc_channel::ipc::IpcSender;
 #[cfg(debug_assertions)]
 use layout_debug;
-use model::{self, Direction, IntrinsicISizes, IntrinsicISizesContribution, MaybeAuto, specified};
+use model::{self, Direction, IntrinsicISizes, IntrinsicISizesContribution, MaybeAuto};
 use msg::constellation_msg::PipelineId;
 use net_traits::image::base::{Image, ImageMetadata};
 use net_traits::image_cache_thread::{ImageOrMetadataAvailable, UsePlaceholder};
diff --git a/components/net/fetch/cors_cache.rs b/components/net/fetch/cors_cache.rs
index 978612836064..8d494ab33c1c 100644
--- a/components/net/fetch/cors_cache.rs
+++ b/components/net/fetch/cors_cache.rs
@@ -12,8 +12,7 @@
 use hyper::method::Method;
 use net_traits::request::{CredentialsMode, Origin, Request};
 use std::ascii::AsciiExt;
-use time;
-use time::{now, Timespec};
+use time::{self, Timespec};
 use url::Url;
 
 /// Union type for CORS cache entries
diff --git a/components/script/dom/request.rs b/components/script/dom/request.rs
index a764aec6265c..7f612157566d 100644
--- a/components/script/dom/request.rs
+++ b/components/script/dom/request.rs
@@ -507,13 +507,13 @@ fn includes_credentials(input: &Url) -> bool {
 
 // TODO: `Readable Stream` object is not implemented in Servo yet.
 // https://fetch.spec.whatwg.org/#concept-body-disturbed
-fn request_is_disturbed(input: &Request) -> bool {
+fn request_is_disturbed(_input: &Request) -> bool {
     false
 }
 
 // TODO: `Readable Stream` object is not implemented in Servo yet.
 // https://fetch.spec.whatwg.org/#concept-body-locked
-fn request_is_locked(input: &Request) -> bool {
+fn request_is_locked(_input: &Request) -> bool {
     false
 }
 
diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index f35d78400b2c..6cc998d5fd3c 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -294,15 +294,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "compiletest_helper"
 version = "0.0.1"
 dependencies = [
- "compiletest_rs 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "compiletest_rs 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "compiletest_rs"
-version = "0.1.3"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/components/util/opts.rs b/components/util/opts.rs
index 8894533c73b5..2e957e8371ca 100644
--- a/components/util/opts.rs
+++ b/components/util/opts.rs
@@ -15,7 +15,7 @@ use std::cmp;
 use std::default::Default;
 use std::env;
 use std::fs::{self, File};
-use std::io::{self, Read, Write, stderr};
+use std::io::{self, Read, Write};
 use std::path::{Path, PathBuf};
 use std::process;
 use std::sync::atomic::{AtomicBool, ATOMIC_BOOL_INIT, Ordering};
diff --git a/rust-nightly-date b/rust-nightly-date
index 9fd465ab723a..00f860602c00 100644
--- a/rust-nightly-date
+++ b/rust-nightly-date
@@ -1 +1 @@
-2016-08-05
+2016-08-13
diff --git a/tests/compiletest/helper/Cargo.toml b/tests/compiletest/helper/Cargo.toml
index d44e109fec19..01c5816668d7 100644
--- a/tests/compiletest/helper/Cargo.toml
+++ b/tests/compiletest/helper/Cargo.toml
@@ -10,4 +10,4 @@ path = "lib.rs"
 doctest = false
 
 [dependencies]
-compiletest_rs = "0.1.3"
+compiletest_rs = "0.2.0"