Update dependencies and bump version to 0.4

Author: jeehoonkang

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "crossbeam-epoch"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["The Crossbeam Project Developers"]
 license = "MIT/Apache-2.0"
 readme = "README.md"
@@ -22,7 +22,7 @@ arrayvec = { version = "0.4", default-features = false }
 cfg-if = "0.1"
 crossbeam-utils = { version = "0.2", default-features = false }
 lazy_static = { version = "0.2", optional = true }
-memoffset = { version = "0.1", default-features = false }
+memoffset = { version = "0.2" }
 scopeguard = { version = "0.3", default-features = false }
 
 [dev-dependencies]

src/collector.rs

@@ -34,7 +34,7 @@ impl Collector {
 
     /// Creates a new handle for the collector.
     pub fn handle(&self) -> Handle {
-        Local::register(self.global.clone())
+        Local::register(&self.global)
     }
 }
 

src/internal.rs

@@ -188,7 +188,7 @@ impl Local {
     const PINNINGS_BETWEEN_COLLECT: usize = 128;
 
     /// Registers a new `Local` in the provided `Global`.
-    pub fn register(global: Arc<Global>) -> Handle {
+    pub fn register(global: &Arc<Global>) -> Handle {
         unsafe {
             // Since we dereference no pointers in this block, it is safe to use `unprotected`.