diff --git a/Cargo.lock b/Cargo.lock
index 7df76c4..f08a89f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3,30 +3,22 @@ name = "snowpatch"
 version = "0.1.0"
 dependencies = [
  "docopt 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "git2 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper-openssl 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "git2 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper-openssl 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "yup-hyper-mock 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "aho-corasick"
-version = "0.5.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "aho-corasick"
-version = "0.6.1"
+version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "memchr 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -44,22 +36,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cmake"
-version = "0.1.20"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gcc 0.3.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gcc 0.3.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "curl-sys"
-version = "0.3.6"
+version = "0.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gcc 0.3.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "libz-sys 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gcc 0.3.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libz-sys 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -76,21 +68,21 @@ dependencies = [
 
 [[package]]
 name = "env_logger"
-version = "0.3.5"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "error-chain"
-version = "0.7.2"
+name = "foreign-types"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "gcc"
-version = "0.3.41"
+version = "0.3.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -104,15 +96,15 @@ dependencies = [
 
 [[package]]
 name = "git2"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "libgit2-sys 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libgit2-sys 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-probe 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -122,30 +114,31 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "hyper"
-version = "0.10.0"
+version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "httparse 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "traitobject 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "hyper-openssl"
-version = "0.2.1"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hyper 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl 0.9.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl 0.9.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -154,8 +147,8 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "matches 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-bidi 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-normalization 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-bidi 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-normalization 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -179,22 +172,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.19"
+version = "0.2.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libgit2-sys"
-version = "0.6.6"
+version = "0.6.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cmake 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
- "curl-sys 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "gcc 0.3.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cmake 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl-sys 0.3.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gcc 0.3.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "libssh2-sys 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "libz-sys 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libz-sys 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -202,21 +195,21 @@ name = "libssh2-sys"
 version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cmake 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "libz-sys 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cmake 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libz-sys 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "libz-sys"
-version = "1.0.10"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gcc 0.3.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gcc 0.3.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -231,28 +224,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "memchr"
-version = "0.1.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "memchr"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "metadeps"
-version = "1.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "error-chain 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "toml 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -265,21 +240,22 @@ dependencies = [
 
 [[package]]
 name = "num_cpus"
-version = "1.2.1"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "openssl"
-version = "0.9.6"
+version = "0.9.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "foreign-types 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -289,18 +265,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.6"
+version = "0.9.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "gcc 0.3.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "gdi32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "metadeps 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "user32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pkg-config"
-version = "0.3.8"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -308,40 +285,28 @@ name = "rand"
 version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "regex"
-version = "0.1.80"
+name = "redox_syscall"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "regex"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-syntax 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "regex-syntax"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
@@ -378,33 +343,16 @@ dependencies = [
 
 [[package]]
 name = "thread-id"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "thread-id"
 version = "3.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "thread_local"
-version = "0.2.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "thread_local"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "thread-id 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -413,11 +361,12 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.1.35"
+version = "0.1.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -449,7 +398,7 @@ dependencies = [
 
 [[package]]
 name = "unicode-bidi"
-version = "0.2.4"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "matches 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -457,7 +406,7 @@ dependencies = [
 
 [[package]]
 name = "unicode-normalization"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -470,7 +419,7 @@ dependencies = [
 
 [[package]]
 name = "url"
-version = "1.2.4"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -488,11 +437,6 @@ dependencies = [
 
 [[package]]
 name = "utf8-ranges"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "utf8-ranges"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
@@ -516,70 +460,63 @@ name = "yup-hyper-mock"
 version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hyper 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [metadata]
-"checksum aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ca972c2ea5f742bfce5687b9aef75506a764f61d37f8f649047846a9686ddb66"
-"checksum aho-corasick 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4f660b942762979b56c9f07b4b36bb559776fbad102f05d6771e1b629e8fd5bf"
+"checksum aho-corasick 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0638fd549427caa90c499814196d1b9e3725eb4d15d7339d6de073a680ed0ca2"
 "checksum antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "34fde25430d87a9388dadbe6e34d7f72a462c8b43ac8d309b42b0a8505d7e2a5"
 "checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
-"checksum cmake 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)" = "a3a6805df695087e7c1bcd9a82e03ad6fb864c8e67ac41b1348229ce5b7f0407"
-"checksum curl-sys 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "218a149208e1f4e5f7e20f1d0ed1e9431a086a6b4333ff95dba82237be9c283a"
+"checksum cmake 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)" = "e1acc68a3f714627af38f9f5d09706a28584ba60dfe2cca68f40bf779f941b25"
+"checksum curl-sys 0.3.10 (registry+https://github.com/rust-lang/crates.io-index)" = "c0d909dc402ae80b6f7b0118c039203436061b9d9a3ca5d2c2546d93e0a61aaa"
 "checksum docopt 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ab32ea6e284d87987066f21a9e809a73c14720571ef34516f0890b3d355ccfd8"
-"checksum env_logger 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "15abd780e45b3ea4f76b4e9a26ff4843258dd8a3eed2775a0e7368c2e7936c2f"
-"checksum error-chain 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "318cb3c71ee4cdea69fdc9e15c173b245ed6063e1709029e8fd32525a881120f"
-"checksum gcc 0.3.41 (registry+https://github.com/rust-lang/crates.io-index)" = "3689e1982a563af74960ae3a4758aa632bb8fd984cfc3cc3b60ee6109477ab6e"
+"checksum env_logger 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ed39959122ea027670b704fb70539f4286ddf4a49eefede23bf0b4b2a069ec03"
+"checksum foreign-types 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3e4056b9bd47f8ac5ba12be771f77a0dae796d1bbaaf5fd0b9c2d38b69b8a29d"
+"checksum gcc 0.3.43 (registry+https://github.com/rust-lang/crates.io-index)" = "c07c758b972368e703a562686adb39125707cc1ef3399da8c019fc6c2498a75d"
 "checksum gdi32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0912515a8ff24ba900422ecda800b52f4016a56251922d397c576bf92c690518"
-"checksum git2 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0534ca86640c6a3a0687cc6bee9ec4032509a0d112d97e8241fa6b7e075f6119"
+"checksum git2 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "046ae03385257040b2a35e56d9669d950dd911ba2bf48202fbef73ee6aab27b2"
 "checksum httparse 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a6e7a63e511f9edffbab707141fbb8707d1a3098615fb2adbd5769cdfcc9b17d"
-"checksum hyper 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "305b3c3cc13864a07a54d3ffd162ac0c3e3e124173cf74039b27c8459f019038"
-"checksum hyper-openssl 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5f226a866ba44360c633800947e64ddde5a144bb96a4a1eb50e1f9a090991e37"
+"checksum hyper 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)" = "220407e5a263f110ec30a071787c9535918fdfc97def5680c90013c3f30c38c1"
+"checksum hyper-openssl 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "724e697539067177f7edcd31fccf5eeebff95f1603b72f1d304d0dc1fe1570b0"
 "checksum idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1053236e00ce4f668aeca4a769a09b3bf5a682d802abd6f3cb39374f6b162c11"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"
 "checksum lazy_static 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6abe0ee2e758cd6bc8a2cd56726359007748fbf4128da998b65d0b70f881e19b"
-"checksum libc 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)" = "9e030dc72013ed68994d1b2cbf36a94dd0e58418ba949c4b0db7eeb70a7a6352"
-"checksum libgit2-sys 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c7a4e33e9f8b8883c1a5898e72cdc63c00c4f2265283651533b00373094e901c"
+"checksum libc 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)" = "684f330624d8c3784fb9558ca46c4ce488073a8d22450415c5eb4f4cfb0d11b5"
+"checksum libgit2-sys 0.6.7 (registry+https://github.com/rust-lang/crates.io-index)" = "d951fd5eccae07c74e8c2c1075b05ea1e43be7f8952245af8c2840d1480b1d95"
 "checksum libssh2-sys 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "91e135645c2e198a39552c8c7686bb5b83b1b99f64831c040a6c2798a1195934"
-"checksum libz-sys 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)" = "905c72a0c260bcd89ddca5afa1c46bebd29b52878a3d58c86865ea42402f88e6"
+"checksum libz-sys 1.0.13 (registry+https://github.com/rust-lang/crates.io-index)" = "e5ee912a45d686d393d5ac87fac15ba0ba18daae14e8e7543c63ebf7fb7e970c"
 "checksum log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ab83497bf8bf4ed2a74259c1c802351fcd67a65baa86394b6ba73c36f4838054"
 "checksum matches 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "efd7622e3022e1a6eaa602c4cea8912254e5582c9c692e9167714182244801b1"
-"checksum memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d8b629fb514376c675b98c1421e80b151d3817ac42d7c667717d282761418d20"
 "checksum memchr 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1dbccc0e46f1ea47b9f17e6d67c5a96bd27030519c519c9c91327e31275a47b4"
-"checksum metadeps 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "829fffe7ea1d747e23f64be972991bc516b2f1ac2ae4a3b33d8bea150c410151"
 "checksum mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b5c93a4bd787ddc6e7833c519b73a50883deb5863d76d9b71eb8216fb7f94e66"
-"checksum num_cpus 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a225d1e2717567599c24f88e49f00856c6e825a12125181ee42c4257e3688d39"
-"checksum openssl 0.9.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0c00da69323449142e00a5410f0e022b39e8bbb7dc569cee8fc6af279279483c"
+"checksum num_cpus 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a18c392466409c50b87369414a2680c93e739aedeb498eb2bff7d7eb569744e2"
+"checksum openssl 0.9.7 (registry+https://github.com/rust-lang/crates.io-index)" = "f9871ecf7629da3760599e3e547d35940cff3cead49159b49f81cd1250f24f1d"
 "checksum openssl-probe 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "756d49c8424483a3df3b5d735112b4da22109ced9a8294f1f5cdf80fb3810919"
-"checksum openssl-sys 0.9.6 (registry+https://github.com/rust-lang/crates.io-index)" = "b1482f9a06f56c906007e17ea14d73d102210b5d27bc948bf5e175f493f3f7c3"
-"checksum pkg-config 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8cee804ecc7eaf201a4a207241472cc870e825206f6c031e3ee2a72fa425f2fa"
+"checksum openssl-sys 0.9.7 (registry+https://github.com/rust-lang/crates.io-index)" = "5dd48381e9e8a6dce9c4c402db143b2e243f5f872354532f7a009c289b3998ca"
+"checksum pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "3a8b4c6b8165cd1a1cd4b9b120978131389f64bdaf456435caa41e630edba903"
 "checksum rand 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "022e0636ec2519ddae48154b028864bdce4eaf7d35226ab8e65c611be97b189d"
-"checksum regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)" = "4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"
+"checksum redox_syscall 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "8dd35cc9a8bdec562c757e3d43c1526b5c6d2653e23e2315065bc25556550753"
 "checksum regex 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4278c17d0f6d62dfef0ab00028feb45bd7d2102843f80763474eeb1be8a10c01"
-"checksum regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
 "checksum regex-syntax 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9191b1f57603095f105d317e375d19b1c9c5c3185ea9633a99a6dcbed04457"
 "checksum rustc-serialize 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)" = "237546c689f20bb44980270c73c3b9edd0891c1be49cc1274406134a66d3957b"
 "checksum rustc_version 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "c5f5376ea5e30ce23c03eb77cbe4962b988deead10910c372b226388b594c084"
 "checksum semver 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)" = "d4f410fedcf71af0345d7607d246e7ad15faaadd49d240ee3b24e5dc21a820ac"
 "checksum strsim 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b4d15c810519a91cf877e7e36e63fe068815c678181439f2f29e2562147c3694"
 "checksum tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "87974a6f5c1dfb344d733055601650059a3363de2a6104819293baff662132d6"
-"checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
 "checksum thread-id 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4437c97558c70d129e40629a5b385b3fb1ffac301e63941335e4d354081ec14a"
-"checksum thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
-"checksum thread_local 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7793b722f0f77ce716e7f1acf416359ca32ff24d04ffbac4269f44a4a83be05d"
-"checksum time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)" = "3c7ec6d62a20df54e07ab3b78b9a3932972f4b7981de295563686849eb3989af"
+"checksum thread_local 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "c85048c6260d17cf486ceae3282d9fb6b90be220bf5b28c400f5485ffc29f0c7"
+"checksum time 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)" = "211b63c112206356ef1ff9b19355f43740fc3f85960c598a93d3a3d3ba7beade"
 "checksum toml 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "736b60249cb25337bc196faa43ee12c705e426f3d55c214d73a4e7be06f92cb4"
 "checksum traitobject 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "07eaeb7689bb7fca7ce15628319635758eda769fed481ecfe6686ddef2600616"
 "checksum typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1410f6f91f21d1612654e7cc69193b0334f909dcf2c790c4826254fbb86f8887"
 "checksum unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "13a5906ca2b98c799f4b1ab4557b76367ebd6ae5ef14930ec841c74aed5f3764"
-"checksum unicode-bidi 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b61814f3e7fd0e0f15370f767c7c943e08bc2e3214233ae8f88522b334ceb778"
-"checksum unicode-normalization 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "5e94e9f6961090fcc75180629c4ef33e5310d6ed2c0dd173f4ca63c9043b669e"
+"checksum unicode-bidi 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "d3a078ebdd62c0e71a709c3d53d2af693fe09fe93fbff8344aebe289b78f9032"
+"checksum unicode-normalization 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "e28fa37426fceeb5cf8f41ee273faa7c82c47dc8fba5853402841e665fcd86ff"
 "checksum unreachable 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1f2ae5ddb18e1c92664717616dd9549dde73f539f01bd7b77c2edb2446bdff91"
-"checksum url 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "f024e241a55f5c88401595adc1d4af0c9649e91da82d0e190fe55950231ae575"
+"checksum url 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f5ba8a749fb4479b043733416c244fa9d1d3af3d7c23804944651c8a448cb87e"
 "checksum user32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4ef4711d107b21b410a3a974b1204d9accc8b10dad75d8324b5d755de1617d47"
-"checksum utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"
 "checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
diff --git a/Cargo.toml b/Cargo.toml
index 5deb5f8..b363292 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,13 +36,13 @@ hyper = "0.10"
 hyper-openssl = "0.2"
 git2 = "0.6"
 rustc-serialize = "0.3"
-url = "1.2"
+url = "1.4"
 mime = "0.2"
 toml = "0.2"
 tempdir = "0.3"
 docopt = "0.7"
 log = "0.3"
-env_logger = "0.3"
+env_logger = "0.4"
 
 [dev-dependencies]
 yup-hyper-mock = "2.0"
