Update to crossbeam-utils 0.5.0, fix imports (#519)

tokio-threadpool/Cargo.toml

@@ -20,7 +20,7 @@ categories = ["concurrency", "asynchronous"]
 tokio-executor = { version = "0.1.2", path = "../tokio-executor" }
 futures = "0.1.19"
 crossbeam-deque = "0.5.0"
-crossbeam-utils = "0.4.1"
+crossbeam-utils = "0.5.0"
 num_cpus = "1.2"
 rand = "0.5"
 log = "0.4"

tokio-threadpool/src/pool/mod.rs

@@ -28,7 +28,7 @@ use std::sync::atomic::AtomicUsize;
 use std::sync::Arc;
 use std::thread;
 
-use crossbeam_utils::cache_padded::CachePadded;
+use crossbeam_utils::CachePadded;
 use rand;
 
 #[derive(Debug)]

tokio-threadpool/src/task/queue.rs

@@ -6,7 +6,7 @@ use std::sync::Arc;
 use std::sync::atomic::AtomicPtr;
 use std::sync::atomic::Ordering::{Acquire, Release, AcqRel, Relaxed};
 
-use crossbeam_utils::cache_padded::CachePadded;
+use crossbeam_utils::CachePadded;
 
 #[derive(Debug)]
 pub(crate) struct Queue {

tokio-threadpool/src/worker/entry.rs

@@ -8,7 +8,7 @@ use std::sync::Arc;
 use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::atomic::Ordering::{Acquire, AcqRel, Relaxed};
 
-use crossbeam_utils::cache_padded::CachePadded;
+use crossbeam_utils::CachePadded;
 use deque;
 
 // TODO: None of the fields should be public