diff --git a/Cargo.lock b/Cargo.lock
index b54934ef1a6d1..d7cec99a57005 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1560,6 +1560,11 @@ dependencies = [
  "serde_derive 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "maybe-uninit"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "md5"
 version = "0.6.1"
@@ -1912,7 +1917,7 @@ dependencies = [
  "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1926,7 +1931,7 @@ dependencies = [
  "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2977,8 +2982,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "smallvec"
-version = "0.6.12"
+version = "0.6.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "smallvec"
@@ -3797,7 +3805,7 @@ dependencies = [
  "matchers 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "owning_ref 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "tracing-core 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "tracing-log 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3850,7 +3858,7 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "socket2 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-executor 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-io 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3875,7 +3883,7 @@ dependencies = [
  "lru-cache 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "resolv-conf 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-executor 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-tcp 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4010,7 +4018,7 @@ name = "unicode-normalization"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "smallvec 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -4568,6 +4576,7 @@ dependencies = [
 "checksum matchers 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f099785f7595cc4b4553a174ce30dd7589ef93391ff414dbb67f62392b9e0ce1"
 "checksum matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 "checksum maxminddb 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9412a854bf1355d1ff92ef6ffe557dcc4a866e20cdffc7d3fc082174dba7436e"
+"checksum maybe-uninit 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
 "checksum md5 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e6bcd6433cff03a4bfc3d9834d504467db1f1cf6d0ea765d37d330249ed629d"
 "checksum memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
 "checksum memoffset 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4a85c1a8c329f11437034d7313dca647c79096523533a1c79e86f1d0f657c7cc"
@@ -4715,7 +4724,7 @@ dependencies = [
 "checksum signal-hook-registry 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1797d48f38f91643908bb14e35e79928f9f4b3cefb2420a564dde0991b4358dc"
 "checksum siphasher 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0b8de496cf83d4ed58b6be86c3a275b8602f6ffe98d3024a869e124147a9a3ac"
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
-"checksum smallvec 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "533e29e15d0748f28afbaf4ff7cab44d73e483a8e50b38c40bd13b7f3d48f542"
+"checksum smallvec 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)" = "b97fcaeba89edba30f044a10c6a3cc39df9c3f17d7cd829dd1446cab35f890e0"
 "checksum smallvec 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4ecf3b85f68e8abaa7555aa5abdb1153079387e60b718283d732f03897fcfc86"
 "checksum smpl_jwt 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3cfb92dfa863a7db725449715afba9ec8dfa3511b1be6f2b6f7260fbb6d2eaa0"
 "checksum snafu 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b028158eb06caa8345bee10cccfb25fa632beccf0ef5308832b4fd4b78a7db48"