diff --git a/Cargo.lock b/Cargo.lock
index 67d44569..94426662 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,9 +1,9 @@
 [[package]]
 name = "aho-corasick"
-version = "0.6.6"
+version = "0.6.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -14,7 +14,7 @@ dependencies = [
  "html5ever 0.22.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "maplit 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "matches 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "tendril 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -24,7 +24,7 @@ name = "ansi_term"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -34,7 +34,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -43,10 +43,10 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "backtrace-sys 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-demangle 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -54,7 +54,7 @@ name = "backtrace-sys"
 version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -63,7 +63,7 @@ name = "base64"
 version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "safemem 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -80,11 +80,6 @@ name = "bit-vec"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "bitflags"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "bitflags"
 version = "0.7.0"
@@ -97,45 +92,40 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bitflags"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "byteorder"
-version = "1.2.4"
+version = "1.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bytes"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "bytes"
-version = "0.4.9"
+version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "cc"
-version = "1.0.18"
+version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "cfg-if"
-version = "0.1.5"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "chrono"
-version = "0.4.5"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -146,7 +136,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "textwrap 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -158,9 +148,14 @@ name = "cloudabi"
 version = "0.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "crossbeam-utils"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "debug_unreachable"
 version = "0.1.1"
@@ -185,24 +180,24 @@ version = "2.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.26 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "strum 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "strum_macros 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "env_logger"
-version = "0.5.12"
+version = "0.5.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "humantime 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "termcolor 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -215,10 +210,10 @@ dependencies = [
 
 [[package]]
 name = "filetime"
-version = "0.1.15"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -246,7 +241,7 @@ name = "fuchsia-zircon"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -264,6 +259,11 @@ dependencies = [
  "new_debug_unreachable 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "futures"
+version = "0.1.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "getopts"
 version = "0.2.18"
@@ -274,18 +274,18 @@ dependencies = [
 
 [[package]]
 name = "handlebars"
-version = "1.0.1"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_derive 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -305,9 +305,9 @@ name = "html5ever"
 version = "0.22.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "mac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "markup5ever 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "markup5ever 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro2 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "syn 0.13.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -315,7 +315,7 @@ dependencies = [
 
 [[package]]
 name = "httparse"
-version = "1.3.2"
+version = "1.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -332,7 +332,7 @@ version = "0.10.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "base64 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "httparse 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "httparse 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -349,14 +349,28 @@ name = "idna"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "matches 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-normalization 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "inotify"
-version = "0.3.0"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "inotify-sys 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-reactor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "inotify-sys"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -401,7 +415,7 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -428,17 +442,12 @@ name = "lazy_static"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "version_check 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "lazycell"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "lazycell"
-version = "1.0.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -447,19 +456,28 @@ version = "0.2.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "log"
-version = "0.3.9"
+name = "lock_api"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.4"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "log"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -477,8 +495,8 @@ name = "markup5ever"
 version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_codegen 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_codegen 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_codegen 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -487,14 +505,14 @@ dependencies = [
 
 [[package]]
 name = "markup5ever"
-version = "0.7.2"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_codegen 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.26 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_codegen 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_codegen 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "tendril 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -502,7 +520,7 @@ dependencies = [
 
 [[package]]
 name = "matches"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -510,42 +528,44 @@ name = "mdbook"
 version = "0.2.2-alpha.0"
 dependencies = [
  "ammonia 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "chrono 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "elasticlunr-rs 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.5.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.5.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "handlebars 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "handlebars 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "iron 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "notify 4.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "notify 4.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "open 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "pretty_assertions 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "pulldown-cmark 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "pulldown-cmark-to-cmark 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "select 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.26 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "shlex 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "staticfile 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "tempfile 3.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "toml 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempfile 3.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "toml 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml-query 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ws 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ws 0.7.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "memchr"
-version = "2.0.1"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -562,39 +582,23 @@ version = "1.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "mime 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_codegen 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_codegen 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "mio"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "miow 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "nix 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "slab 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "mio"
-version = "0.6.15"
+version = "0.6.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazycell 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazycell 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -606,23 +610,12 @@ name = "mio-extras"
 version = "2.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazycell 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazycell 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "miow"
-version = "0.1.5"
-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)",
- "net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "miow"
 version = "0.2.1"
@@ -653,9 +646,9 @@ name = "net2"
 version = "0.2.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -666,30 +659,22 @@ dependencies = [
  "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "nix"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "notify"
-version = "4.0.4"
+version = "4.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "filetime 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "filetime 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "fsevent 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "fsevent-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "inotify 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "inotify 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio-extras 2.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "walkdir 2.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -697,12 +682,12 @@ name = "num-integer"
 version = "0.1.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-traits 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-traits"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -718,7 +703,36 @@ name = "open"
 version = "1.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "owning_ref"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "parking_lot"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lock_api 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -743,33 +757,33 @@ dependencies = [
 
 [[package]]
 name = "phf"
-version = "0.7.22"
+version = "0.7.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_shared 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_codegen"
-version = "0.7.22"
+version = "0.7.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_generator 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_generator 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_generator"
-version = "0.7.22"
+version = "0.7.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "phf_shared 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "phf_shared"
-version = "0.7.22"
+version = "0.7.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "siphasher 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -808,7 +822,7 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "0.4.13"
+version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -851,10 +865,10 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "0.6.6"
+version = "0.6.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -864,7 +878,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -875,13 +889,21 @@ dependencies = [
  "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rand_core"
-version = "0.2.1"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -899,14 +921,14 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.0.2"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aho-corasick 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aho-corasick 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-syntax 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "utf8-ranges 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -922,7 +944,7 @@ name = "remove_dir_all"
 version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -935,9 +957,17 @@ name = "rustc-serialize"
 version = "0.3.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "rustc_version"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ryu"
-version = "0.2.4"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -947,12 +977,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "same-file"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "scopeguard"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "select"
 version = "0.4.2"
@@ -962,6 +997,19 @@ dependencies = [
  "html5ever 0.18.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "semver"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "semver-parser"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "sequence_trie"
 version = "0.3.5"
@@ -969,27 +1017,27 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "1.0.72"
+version = "1.0.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde_derive"
-version = "1.0.72"
+version = "1.0.80"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.14.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.26"
+version = "1.0.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "itoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ryu 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ryu 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1009,12 +1057,20 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "slab"
-version = "0.1.3"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "slab"
-version = "0.4.1"
+name = "smallvec"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "stable_deref_trait"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1035,9 +1091,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "debug_unreachable 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
  "precomputed-hash 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_codegen 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_shared 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1049,9 +1105,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "new_debug_unreachable 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
  "precomputed-hash 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1061,8 +1117,8 @@ name = "string_cache_codegen"
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- "phf_generator 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_generator 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf_shared 0.7.23 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1088,9 +1144,9 @@ name = "strum_macros"
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- "proc-macro2 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.14.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.14.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1115,11 +1171,21 @@ dependencies = [
 
 [[package]]
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-version = "0.14.8"
+version = "0.14.9"
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- "proc-macro2 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1133,14 +1199,15 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.0.3"
+version = "3.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
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- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1165,10 +1232,10 @@ dependencies = [
 
 [[package]]
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-version = "1.0.1"
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- "wincolor 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wincolor 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1204,15 +1271,50 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
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+
+[[package]]
+name = "tokio-executor"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
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+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+ "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
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+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+ "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "parking_lot 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-executor 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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 dependencies = [
- "serde 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
@@ -1223,8 +1325,8 @@ dependencies = [
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- "regex 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "toml 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "toml 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
@@ -1255,7 +1357,7 @@ name = "unicase"
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 dependencies = [
- "version_check 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1263,7 +1365,7 @@ name = "unicode-bidi"
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 dependencies = [
- "matches 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1316,7 +1418,7 @@ version = "1.7.1"
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- "matches 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
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@@ -1327,7 +1429,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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-version = "1.0.0"
+version = "1.0.1"
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 [[package]]
@@ -1337,7 +1439,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "version_check"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1347,11 +1449,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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-version = "2.2.0"
+version = "2.2.5"
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- "same-file 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "same-file 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
@@ -1361,7 +1464,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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-version = "0.3.5"
+version = "0.3.6"
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@@ -1378,6 +1481,14 @@ name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "winapi-util"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -1385,22 +1496,23 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
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-version = "1.0.0"
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- "winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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 [[package]]
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- "mio 0.6.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "httparse 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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-"checksum serde_derive 1.0.72 (registry+https://github.com/rust-lang/crates.io-index)" = "ccb40724ad173e215530b5217ffba55cdf34ef811e90023a43c948c5b04dc41f"
-"checksum serde_json 1.0.26 (registry+https://github.com/rust-lang/crates.io-index)" = "44dd2cfde475037451fa99b7e5df77aa3cfd1536575fa8e7a538ab36dcde49ae"
+"checksum serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)" = "15c141fc7027dd265a47c090bf864cf62b42c4d228bbcf4e51a0c9e2b0d3f7ef"
+"checksum serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)" = "225de307c6302bec3898c51ca302fc94a7a1697ef0845fcee6448f33c032249c"
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-"checksum slab 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d807fd58c4181bbabed77cb3b891ba9748241a552bcc5be698faaebefc54f46e"
 "checksum slab 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5f9776d6b986f77b35c6cf846c11ad986ff128fe0b2b63a3628e3755e8d3102d"
+"checksum smallvec 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)" = "153ffa32fd170e9944f7e0838edf824a754ec4c1fc64746fcc9fe1f8fa602e5d"
+"checksum stable_deref_trait 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
 "checksum staticfile 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "babd3fa68bb7e3994ce181c5f21ff3ff5fffef7b18b8a10163b45e4dafc6fb86"
 "checksum string_cache 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "413fc7852aeeb5472f1986ef755f561ddf0c789d3d796e65f0b6fe293ecd4ef8"
 "checksum string_cache 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "25d70109977172b127fe834e5449e5ab1740b9ba49fa18a2020f509174f25423"
@@ -1548,17 +1667,21 @@ dependencies = [
 "checksum strum_macros 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1292d85e688e4696ecb69b2db2648994fb8af266974e89be53cefdf003861a5d"
 "checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
 "checksum syn 0.13.11 (registry+https://github.com/rust-lang/crates.io-index)" = "14f9bf6292f3a61d2c716723fdb789a41bbe104168e6f496dc6497e531ea1b9b"
-"checksum syn 0.14.8 (registry+https://github.com/rust-lang/crates.io-index)" = "b7bfcbb0c068d0f642a0ffbd5c604965a360a61f99e8add013cef23a838614f3"
+"checksum syn 0.14.9 (registry+https://github.com/rust-lang/crates.io-index)" = "261ae9ecaa397c42b960649561949d69311f08eeaea86a65696e6e46517cf741"
+"checksum syn 0.15.12 (registry+https://github.com/rust-lang/crates.io-index)" = "34ab9797e47d24cb76b8dc4d24ff36807018c7cc549c4cba050b068be0c586b0"
 "checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
-"checksum tempfile 3.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "c4b103c6d08d323b92ff42c8ce62abcd83ca8efa7fd5bf7927efefec75f58c76"
+"checksum tempfile 3.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "55c1195ef8513f3273d55ff59fe5da6940287a0d7a98331254397f464833675b"
 "checksum tendril 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1b72f8e2f5b73b65c315b1a70c730f24b9d7a25f39e98de8acbe2bb795caea"
 "checksum tendril 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9de21546595a0873061940d994bbbc5c35f024ae4fd61ec5c5b159115684f508"
-"checksum termcolor 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "722426c4a0539da2c4ffd9b419d90ad540b4cff4a053be9069c908d4d07e2836"
+"checksum termcolor 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "4096add70612622289f2fdcdbd5086dc81c1e2675e6ae58d6c4f62a16c6d7f2f"
 "checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
 "checksum textwrap 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "307686869c93e71f94da64286f9a9524c0f308a9e1c87a583de8e9c9039ad3f6"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 "checksum time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "d825be0eb33fda1a7e68012d51e9c7f451dc1a69391e7fdc197060bb8c56667b"
-"checksum toml 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "a0263c6c02c4db6c8f7681f9fd35e90de799ebd4cfdeab77a38f4ff6b3d8c0d9"
+"checksum tokio-executor 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "c117b6cf86bb730aab4834f10df96e4dd586eff2c3c27d3781348da49e255bde"
+"checksum tokio-io 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "8b8a85fffbec3c5ab1ab62324570230dcd37ee5996a7859da5caf7b9d45e3e8c"
+"checksum tokio-reactor 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "4b26fd37f1125738b2170c80b551f69ff6fecb277e6e5ca885e53eec2b005018"
+"checksum toml 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "4a2ecc31b0351ea18b3fe11274b8db6e4d82bce861bbb22e6dbed40417902c65"
 "checksum toml-query 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ab234a943a2363ad774020e2f9474a38a85bc4396bace01a96380144aef17db3"
 "checksum traitobject 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "efd1f82c56340fdf16f2a953d7bda4f8fdffba13d93b00844c25572110b26079"
 "checksum typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1410f6f91f21d1612654e7cc69193b0334f909dcf2c790c4826254fbb86f8887"
@@ -1575,16 +1698,17 @@ dependencies = [
 "checksum unsafe-any 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f30360d7979f5e9c6e6cea48af192ea8fab4afb3cf72597154b8f08935bc9c7f"
 "checksum url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2a321979c09843d272956e73700d12c4e7d3d92b2ee112b31548aef0d4efc5a6"
 "checksum utf-8 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "bab35f71693630bb1953dce0f2bcd780e7cde025027124a202ac08a45ba25141"
-"checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
+"checksum utf8-ranges 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fd70f467df6810094968e2fce0ee1bd0e87157aceb026a8c083bcf5e25b9efe4"
 "checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
-"checksum version_check 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "7716c242968ee87e5542f8021178248f267f295a5c4803beae8b8b7fd9bc6051"
+"checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
-"checksum walkdir 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f1b768ba943161a9226ccd59b26bcd901e5d60e6061f4fcad3034784e0c7372b"
+"checksum walkdir 2.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "af464bc7be7b785c7ac72e266a6b67c4c9070155606f51655a650a6686204e35"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
-"checksum winapi 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "773ef9dcc5f24b7d850d0ff101e542ff24c3b090a9768e03ff889fdef41f00fd"
+"checksum winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "92c1eb33641e276cfa214a0522acad57be5c56b10cb348b3c5117db75f3ac4b0"
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+"checksum winapi-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "afc5508759c5bf4285e61feb862b6083c8480aec864fa17a81fdec6f69b461ab"
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-"checksum wincolor 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b9dc3aa9dcda98b5a16150c54619c1ead22e3d3a5d458778ae914be760aa981a"
-"checksum ws 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)" = "d2c221321dca56e6a80aa179d562e1fbe6ae116aeaa9205c76fa64e9e3c49dfc"
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+"checksum ws 0.7.9 (registry+https://github.com/rust-lang/crates.io-index)" = "329d3e6dd450a9c5c73024e1047f0be7e24121a68484eb0b5368977bee3cf8c3"
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diff --git a/Cargo.toml b/Cargo.toml
index d47f682e..1e0d1447 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ pulldown-cmark = "0.1.2"
 lazy_static = "1.0"
 log = "0.4"
 env_logger = "0.5"
-toml = "0.4"
+toml = "0.4.8"
 memchr = "2.0"
 open = "1.1"
 regex = "1.0.0"
diff --git a/src/preprocess/cmd.rs b/src/preprocess/cmd.rs
index 4398eba6..59b0cdd3 100644
--- a/src/preprocess/cmd.rs
+++ b/src/preprocess/cmd.rs
@@ -65,9 +65,13 @@ impl CmdPreprocessor {
         }
     }
 
-    fn write_input<W: Write>(&self, writer: W, book: &Book, ctx: &PreprocessorContext) -> Result<()> {
-        serde_json::to_writer(writer, &(ctx, book))
-            .map_err(Into::into)
+    fn write_input<W: Write>(
+        &self,
+        writer: W,
+        book: &Book,
+        ctx: &PreprocessorContext,
+    ) -> Result<()> {
+        serde_json::to_writer(writer, &(ctx, book)).map_err(Into::into)
     }
 
     /// The command this `Preprocessor` will invoke.
@@ -105,7 +109,12 @@ impl Preprocessor for CmdPreprocessor {
             .stdout(Stdio::piped())
             .stderr(Stdio::inherit())
             .spawn()
-            .chain_err(|| format!("Unable to start the \"{}\" preprocessor. Is it installed?", self.name()))?;
+            .chain_err(|| {
+                format!(
+                    "Unable to start the \"{}\" preprocessor. Is it installed?",
+                    self.name()
+                )
+            })?;
 
         self.write_input_to_child(&mut child, &book, ctx);
 
@@ -114,13 +123,21 @@ impl Preprocessor for CmdPreprocessor {
             .chain_err(|| "Error waiting for the preprocessor to complete")?;
 
         trace!("{} exited with output: {:?}", self.cmd, output);
-        ensure!(output.status.success(), "The preprocessor exited unsuccessfully");
+        ensure!(
+            output.status.success(),
+            "The preprocessor exited unsuccessfully"
+        );
 
-        serde_json::from_slice(&output.stdout).chain_err(|| "Unable to parse the preprocessed book")
+        serde_json::from_slice(&output.stdout)
+            .chain_err(|| "Unable to parse the preprocessed book")
     }
 
     fn supports_renderer(&self, renderer: &str) -> bool {
-        debug!("Checking if the \"{}\" preprocessor supports \"{}\"", self.name(), renderer);
+        debug!(
+            "Checking if the \"{}\" preprocessor supports \"{}\"",
+            self.name(),
+            renderer
+        );
 
         let mut cmd = match self.command() {
             Ok(c) => c,
@@ -152,3 +169,36 @@ impl Preprocessor for CmdPreprocessor {
         outcome.unwrap_or(false)
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::path::Path;
+    use MDBook;
+
+    fn book_example() -> MDBook {
+        let example =
+            Path::new(env!("CARGO_MANIFEST_DIR")).join("book-example");
+        MDBook::load(example).unwrap()
+    }
+
+    #[test]
+    fn round_trip_write_and_parse_input() {
+        let cmd = CmdPreprocessor::new("test".to_string(), "test".to_string());
+        let md = book_example();
+        let ctx = PreprocessorContext::new(
+            md.root.clone(),
+            md.config.clone(),
+            "some-renderer".to_string(),
+        );
+
+        let mut buffer = Vec::new();
+        cmd.write_input(&mut buffer, &md.book, &ctx).unwrap();
+
+        let (got_ctx, got_book) =
+            CmdPreprocessor::parse_input(buffer.as_slice()).unwrap();
+
+        assert_eq!(got_book, md.book);
+        assert_eq!(got_ctx, ctx);
+    }
+}
diff --git a/src/preprocess/mod.rs b/src/preprocess/mod.rs
index b7ab1986..917ab5ca 100644
--- a/src/preprocess/mod.rs
+++ b/src/preprocess/mod.rs
@@ -26,6 +26,7 @@ pub struct PreprocessorContext {
     pub renderer: String,
     /// The calling `mdbook` version.
     pub mdbook_version: String,
+    #[serde(skip)]
     __non_exhaustive: (),
 }
 
diff --git a/src/renderer/mod.rs b/src/renderer/mod.rs
index 41176ae0..d31682d4 100644
--- a/src/renderer/mod.rs
+++ b/src/renderer/mod.rs
@@ -64,6 +64,7 @@ pub struct RenderContext {
     /// renderers to cache intermediate results, this directory is not
     /// guaranteed to be empty or even exist.
     pub destination: PathBuf,
+    #[serde(skip)]
     __non_exhaustive: (),
 }