diff --git a/Cargo.lock b/Cargo.lock
index 9148d57077..305c74bfcf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -260,7 +260,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bytes"
-version = "0.4.11"
+version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -707,7 +707,7 @@ version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "http 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -762,7 +762,7 @@ name = "http"
 version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -803,7 +803,7 @@ name = "hyper"
 version = "0.12.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "h2 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -839,7 +839,7 @@ name = "hyper-tls"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.12.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "native-tls 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -959,7 +959,7 @@ name = "jsonrpc-server-utils"
 version = "10.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "globset 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 10.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1321,7 +1321,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "httparse 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1734,7 +1734,7 @@ version = "0.9.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "base64 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "encoding_rs 0.8.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "http 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2089,7 +2089,7 @@ version = "0.12.0"
 dependencies = [
  "bincode 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.89 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2569,7 +2569,7 @@ name = "tokio"
 version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2592,7 +2592,7 @@ name = "tokio-codec"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-io 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2630,7 +2630,7 @@ name = "tokio-io"
 version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2665,7 +2665,7 @@ name = "tokio-tcp"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2704,7 +2704,7 @@ name = "tokio-udp"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2718,7 +2718,7 @@ name = "tokio-uds"
 version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.50 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2977,7 +2977,7 @@ dependencies = [
 "checksum byte-tools 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "980479e6fde23246dfb54d47580d66b4e99202e7579c5eaa9fe10ecb5ebd2182"
 "checksum byteorder 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0fc10e8cc6b2580fda3f36eb6dc5316657f812a3df879a44a66fc9f0fdbc4855"
 "checksum byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a019b10a2a7cdeb292db131fc8113e57ea2a908f6e7894b0c3c671893b65dbeb"
-"checksum bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)" = "40ade3d27603c2cb345eb0912aec461a6dec7e06a4ae48589904e808335c7afa"
+"checksum bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)" = "206fdffcfa2df7cbe15601ef46c813fce0965eb3286db6b56c583b814b51c81c"
 "checksum cc 1.0.28 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4a8b715cb4597106ea87c7c84b2f1d452c7492033765df7f32651e66fcf749"
 "checksum cexpr 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8fc0086be9ca82f7fc89fc873435531cb898b86e850005850de1f820e2db6e9b"
 "checksum cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "082bb9b28e00d3c9d39cc03e64ce4cea0f1bb9b3fde493f0cbc008472d22bdf4"