Upgrade dependencies

4 files changed, 503 insertions, 578 deletions

diff --git a/Cargo.lock b/Cargo.lock
index b374058..2a66339 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -31,6 +31,11 @@ dependencies = [
 ]
 
 [[package]]
+name = "anyhow"
+version = "1.0.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "ascii"
 version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -47,42 +52,13 @@ dependencies = [
 
 [[package]]
 name = "autocfg"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "autocfg"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "backtrace"
-version = "0.3.46"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "backtrace-sys 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "backtrace-sys"
-version = "0.1.35"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "cc 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "base64"
-version = "0.9.3"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "safemem 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "bitflags"
@@ -101,6 +77,14 @@ dependencies = [
 ]
 
 [[package]]
+name = "block-buffer"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "generic-array 0.14.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "block-padding"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -120,16 +104,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bytes"
-version = "0.4.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "cc"
-version = "1.0.50"
+version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -149,7 +124,7 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "2.33.0"
+version = "2.33.3"
 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)",
@@ -162,14 +137,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "cloudabi"
-version = "0.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "combine"
 version = "3.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -182,6 +149,11 @@ dependencies = [
 ]
 
 [[package]]
+name = "cpuid-bool"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "ctor"
 version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -191,50 +163,32 @@ dependencies = [
 ]
 
 [[package]]
-name = "darling"
-version = "0.8.6"
+name = "difference"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "darling_core 0.8.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "darling_macro 0.8.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
-name = "darling_core"
-version = "0.8.6"
+name = "digest"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "ident_case 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "generic-array 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "darling_macro"
-version = "0.8.6"
+name = "digest"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "darling_core 0.8.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+ "generic-array 0.14.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "difference"
-version = "2.0.0"
+name = "dtoa"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "digest"
-version = "0.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "generic-array 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "either"
 version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -248,65 +202,24 @@ dependencies = [
  "regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.57 (registry+https://github.com/rust-lang/crates.io-index)",
  "strum 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "strum_macros 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "env_logger"
-version = "0.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "env_logger"
 version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "error-chain"
-version = "0.12.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "backtrace 0.3.46 (registry+https://github.com/rust-lang/crates.io-index)",
- "version_check 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "failure"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "backtrace 0.3.46 (registry+https://github.com/rust-lang/crates.io-index)",
- "failure_derive 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "failure_derive"
-version = "0.1.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "proc-macro2 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "quote 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "fake-simd"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -345,11 +258,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "fuchsia-cprng"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
 name = "fuchsia-zircon"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -373,11 +281,92 @@ dependencies = [
 ]
 
 [[package]]
+name = "futures"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures-channel 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-io 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-task 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-util 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "futures-channel"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "futures-core"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "futures-io"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "futures-macro"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro-hack 0.5.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "futures-sink"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "futures-task"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "once_cell 1.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "futures-util"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-macro 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-task 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-utils 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro-hack 0.5.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro-nested 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "generic-array"
 version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "generic-array"
+version = "0.14.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "typenum 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "version_check 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -412,16 +401,62 @@ version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "h2"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bytes 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-sink 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-util 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "indexmap 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-util 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing 0.1.19 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "handlebars"
 version = "3.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest 2.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "quick-error 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.57 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "hashbrown"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "headers"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "base64 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "headers-core 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha-1 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "headers-core"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -445,7 +480,7 @@ name = "html5ever"
 version = "0.25.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "mac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "markup5ever 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "proc-macro2 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -454,11 +489,35 @@ dependencies = [
 ]
 
 [[package]]
+name = "http"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bytes 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "http-body"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bytes 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "httparse"
 version = "1.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "httpdate"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "humantime"
 version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -468,30 +527,30 @@ dependencies = [
 
 [[package]]
 name = "hyper"
-version = "0.10.16"
+version = "0.13.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "base64 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-channel 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-core 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-util 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "h2 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "http-body 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "httparse 1.3.4 (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)",
- "num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "traitobject 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "httpdate 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
+ "socket2 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tower-service 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tracing 0.1.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "want 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "ident_case"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
 name = "idna"
-version = "0.1.5"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -500,13 +559,12 @@ dependencies = [
 ]
 
 [[package]]
-name = "idna"
-version = "0.2.0"
+name = "indexmap"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "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 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hashbrown 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -528,39 +586,19 @@ dependencies = [
 ]
 
 [[package]]
-name = "iovec"
-version = "0.1.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "iron"
-version = "0.6.1"
+name = "input_buffer"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hyper 0.10.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime_guess 1.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "modifier 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "plugin 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "typemap 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bytes 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "is-match"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "itertools"
-version = "0.8.2"
+name = "iovec"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -578,11 +616,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "language-tags"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
 name = "lazy_static"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -604,15 +637,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "log"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "log"
-version = "0.4.8"
+version = "0.4.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -633,12 +658,12 @@ name = "markup5ever"
 version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf_codegen 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.57 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "string_cache_codegen 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "tendril 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -662,50 +687,48 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "mdbook"
-version = "0.3.7"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ammonia 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "anyhow 1.0.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.33.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "elasticlunr-rs 2.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "error-chain 0.12.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-util 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "gitignore 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "handlebars 3.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "iron 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "notify 4.0.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "open 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "pulldown-cmark 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pulldown-cmark 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.106 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.51 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.57 (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 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "toml-query 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ws 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "warp 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "mdbook-mermaid"
 version = "0.5.1-alpha.0"
 dependencies = [
- "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.33.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "mdbook 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mdbook 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "pretty_assertions 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "pulldown-cmark 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pulldown-cmark-to-cmark 4.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.51 (registry+https://github.com/rust-lang/crates.io-index)",
- "toml_edit 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.57 (registry+https://github.com/rust-lang/crates.io-index)",
+ "toml_edit 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -715,21 +738,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "mime"
-version = "0.2.6"
+version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "mime_guess"
-version = "1.8.8"
+version = "2.0.3"
 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 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_codegen 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicase 2.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -743,7 +761,7 @@ dependencies = [
  "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.11 (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 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -756,7 +774,7 @@ version = "2.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazycell 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -773,20 +791,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "modifier"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "mount"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "iron 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "sequence_trie 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "net2"
 version = "0.2.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -836,13 +840,9 @@ dependencies = [
 ]
 
 [[package]]
-name = "num_cpus"
-version = "1.12.0"
+name = "once_cell"
+version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "hermit-abi 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "opaque-debug"
@@ -850,6 +850,11 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "opaque-debug"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "open"
 version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -867,11 +872,6 @@ dependencies = [
 
 [[package]]
 name = "percent-encoding"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "percent-encoding"
 version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
@@ -916,14 +916,6 @@ dependencies = [
 
 [[package]]
 name = "phf"
-version = "0.7.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "phf_shared 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "phf"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -932,15 +924,6 @@ dependencies = [
 
 [[package]]
 name = "phf_codegen"
-version = "0.7.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "phf_generator 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "phf_shared 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "phf_codegen"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -950,15 +933,6 @@ dependencies = [
 
 [[package]]
 name = "phf_generator"
-version = "0.7.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "phf_shared 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "phf_generator"
 version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -968,30 +942,41 @@ dependencies = [
 
 [[package]]
 name = "phf_shared"
-version = "0.7.24"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "siphasher 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "siphasher 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "phf_shared"
-version = "0.8.0"
+name = "pin-project"
+version = "0.4.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "siphasher 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pin-project-internal 0.4.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "plugin"
-version = "0.2.6"
+name = "pin-project-internal"
+version = "0.4.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "typemap 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
+name = "pin-project-lite"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "pin-utils"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "ppv-lite86"
 version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1013,6 +998,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "proc-macro-hack"
+version = "0.5.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "proc-macro-nested"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "proc-macro2"
 version = "0.4.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1030,17 +1025,6 @@ dependencies = [
 
 [[package]]
 name = "pulldown-cmark"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "getopts 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicase 2.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "pulldown-cmark"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -1081,24 +1065,6 @@ dependencies = [
 
 [[package]]
 name = "rand"
-version = "0.6.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.68 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_chacha 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_hc 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_isaac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_jitter 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "rand"
 version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
@@ -1112,15 +1078,6 @@ dependencies = [
 
 [[package]]
 name = "rand_chacha"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "rand_chacha"
 version = "0.2.2"