diff --git a/Cargo.lock b/Cargo.lock
index dc9529a7..83affa79 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,7 +1,16 @@
+[[package]]
+name = "adler32"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "aesni"
-version = "0.1.4"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "block-cipher-trait 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "opaque-debug 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "aho-corasick"
@@ -23,29 +32,23 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "atty"
-version = "0.2.3"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "base64"
-version = "0.6.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "safemem 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "bitflags"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "bitflags"
 version = "0.9.1"
@@ -65,6 +68,19 @@ dependencies = [
  "byte-tools 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "block-cipher-trait"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "build_const"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "byte-tools"
 version = "0.2.0"
@@ -89,6 +105,24 @@ dependencies = [
  "iovec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "bzip2"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bzip2-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "bzip2-sys"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "cc"
 version = "1.0.3"
@@ -99,13 +133,27 @@ name = "cfg-if"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "checked_int_cast"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "chrono"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "num 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "clap"
-version = "2.28.0"
+version = "2.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ansi_term 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "atty 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "atty 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "strsim 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "textwrap 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -115,10 +163,20 @@ dependencies = [
 
 [[package]]
 name = "clear_on_drop"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "cmac"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "block-cipher-trait 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crypto-mac 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dbl 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -131,16 +189,46 @@ dependencies = [
 ]
 
 [[package]]
-name = "crossbeam"
-version = "0.2.10"
+name = "constant_time_eq"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "digest"
-version = "0.6.2"
+name = "crc"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "generic-array 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "build_const 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "crossbeam"
+version = "0.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "crypto-mac"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "constant_time_eq 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "dbl"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "digest"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -155,11 +243,41 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "env_logger"
-version = "0.4.3"
+version = "0.5.0-rc.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termcolor 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "filetime"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "flate2"
+version = "0.2.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miniz-sys 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "flate2"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miniz_oxide_c_api 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -177,19 +295,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "fuchsia-zircon"
-version = "0.2.1"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "fuchsia-zircon-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "fuchsia-zircon-sys"
-version = "0.2.0"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
 
 [[package]]
 name = "futures"
@@ -198,24 +314,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "futures-cpupool"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "gcc"
-version = "0.3.54"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "generic-array"
-version = "0.8.3"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "typenum 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -234,7 +344,7 @@ name = "iovec"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -257,29 +367,50 @@ name = "lazy_static"
 version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "lazy_static"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "lazycell"
-version = "0.5.1"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.34"
+version = "0.2.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libsodium-ffi"
-version = "0.1.9"
+version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "flate2 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tar 0.4.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unwrap 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "zip 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "log"
-version = "0.3.8"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "log"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "matches"
@@ -288,13 +419,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "md-5"
-version = "0.5.2"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "block-buffer 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "byte-tools 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "digest 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "generic-array 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "digest 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -302,21 +432,50 @@ name = "memchr"
 version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "miniz-sys"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "miniz_oxide"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "adler32 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "miniz_oxide_c_api"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crc 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miniz_oxide 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "mio"
-version = "0.6.11"
+version = "0.6.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "fuchsia-zircon 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "fuchsia-zircon-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "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 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazycell 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazycell 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -328,8 +487,8 @@ name = "mio-uds"
 version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -345,14 +504,29 @@ dependencies = [
 
 [[package]]
 name = "miscreant"
-version = "0.2.0"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aesni 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "arrayref 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aesni 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "block-cipher-trait 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "clear_on_drop 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "subtle 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clear_on_drop 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cmac 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crypto-mac 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dbl 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pmac 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "subtle 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "msdos_time"
+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)",
+ "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -362,15 +536,37 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 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)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (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 = "nodrop"
-version = "0.1.12"
+name = "num"
+version = "0.1.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-iter 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "num-integer"
+version = "0.1.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "num-traits 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "num-iter"
+version = "0.1.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "num-integer 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "num-traits"
@@ -379,31 +575,36 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "num_cpus"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "opaque-debug"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "openssl"
-version = "0.9.22"
+version = "0.9.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.9.23 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.22"
+version = "0.9.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -419,24 +620,53 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "qrcode"
-version = "0.4.0"
+name = "pmac"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "block-cipher-trait 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crypto-mac 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dbl 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "podio"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "rand"
-version = "0.3.18"
+name = "qrcode"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "fuchsia-zircon 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "checked_int_cast 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand"
+version = "0.3.20"
+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 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "rand"
+version = "0.4.2"
+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 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rayon"
-version = "0.7.1"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "either 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon-core 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -447,14 +677,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "coco 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)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "redox_syscall"
-version = "0.1.32"
+version = "0.1.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -462,36 +692,36 @@ name = "redox_termios"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "redox_syscall 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "regex"
-version = "0.2.3"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "aho-corasick 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex-syntax 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "ring"
-version = "0.11.0"
+version = "0.13.0-alpha"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "rayon 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "untrusted 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rayon 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "untrusted 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -511,18 +741,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "1.0.23"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde_json"
-version = "1.0.7"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dtoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -532,7 +762,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dtoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -540,33 +770,33 @@ dependencies = [
 name = "shadowsocks-rust"
 version = "1.6.10"
 dependencies = [
- "base64 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "base64 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byte_string 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "bytes 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "clap 2.28.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "digest 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "clap 2.29.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "digest 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.5.0-rc.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures-cpupool 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "libsodium-ffi 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "md-5 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "miscreant 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl 0.9.22 (registry+https://github.com/rust-lang/crates.io-index)",
- "qrcode 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "ring 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libsodium-ffi 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "md-5 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miscreant 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl 0.9.23 (registry+https://github.com/rust-lang/crates.io-index)",
+ "qrcode 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ring 0.13.0-alpha (registry+https://github.com/rust-lang/crates.io-index)",
  "scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_urlencoded 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "subprocess 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "time 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-io 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-signal 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-signal 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "typenum 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -591,24 +821,43 @@ name = "subprocess"
 version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "subtle"
-version = "0.2.0"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "tar"
+version = "0.4.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "filetime 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "xattr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "termcolor"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "wincolor 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "termion"
 version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -622,34 +871,33 @@ dependencies = [
 
 [[package]]
 name = "thread_local"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "time"
-version = "0.1.38"
+version = "0.1.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tokio-core"
-version = "0.1.10"
+version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-io 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -662,21 +910,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tokio-signal"
-version = "0.1.2"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futures 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
- "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
- "mio 0.6.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mio 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio-uds 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-core 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-io 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -712,7 +960,12 @@ dependencies = [
 
 [[package]]
 name = "untrusted"
-version = "0.5.1"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "unwrap"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -750,11 +1003,39 @@ name = "winapi"
 version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "winapi"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi-i686-pc-windows-gnu 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi-x86_64-pc-windows-gnu 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "winapi-build"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "wincolor"
+version = "0.1.4"
+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)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ws2_32-sys"
 version = "0.2.1"
@@ -764,101 +1045,155 @@ dependencies = [
  "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "xattr"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.35 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "zip"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bzip2 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "flate2 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
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diff --git a/Cargo.toml b/Cargo.toml
index f0afeb01..05574889 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,34 +31,34 @@ default = ["sodium"]
 sodium = ["libsodium-ffi"]
 
 [dependencies]
-log = "0.3"
+log = "0.4"
 byteorder = "1.1"
-rand = "0.3"
+rand = "0.4"
 time = "0.1"
 clap = "2"
-env_logger = "0.4"
+env_logger = "0.5.0-rc.1"
 openssl = "0.9"
 libc = "0.2"
 futures = "0.1"
 tokio-core = "0.1"
 tokio-io = "0.1"
-lazy_static = "0.2"
+lazy_static = "1.0"
 serde_json = "1.0"
-base64 = "0.6"
+base64 = "0.9"
 bytes = "0.4"
 scoped-tls = "0.1"
-ring = "0.11"
-md-5 = "0.5"
-digest = "0.6"
+ring = "0.13.0-alpha"
+md-5 = "0.7"
+digest = "0.7"
 typenum = "1.9"
-qrcode = { version = "0.4", default-features = false }
+qrcode = { version = "0.5", default-features = false }
 subprocess = "0.1"
 serde_urlencoded = "0.5"
 url = "1.5"
 byte_string = "1.0"
 libsodium-ffi = { version = "0.1", optional = true }
 futures-cpupool = "0.1"
-miscreant = { version = "0.2", optional = true }
+miscreant = { version = "0.3", optional = true }
 
 [target.'cfg(unix)'.dependencies]
 tokio-signal = "0.1"
diff --git a/src/bin/local.rs b/src/bin/local.rs
index b4b547dc..c078222c 100644
--- a/src/bin/local.rs
+++ b/src/bin/local.rs
@@ -15,30 +15,32 @@ extern crate time;
 use clap::{App, Arg};
 
 use std::env;
+use std::io::{self, Write};
 use std::net::SocketAddr;
 
-use env_logger::LogBuilder;
-use log::{LogLevelFilter, LogRecord};
+use env_logger::Builder;
+use env_logger::fmt::Formatter;
+use log::{LevelFilter, Record};
 
 use shadowsocks::{Config, ConfigType, ServerAddr, ServerConfig, run_local};
 use shadowsocks::plugin::PluginConfig;
 
-fn log_time(without_time: bool, record: &LogRecord) -> String {
+fn log_time(fmt: &mut Formatter, without_time: bool, record: &Record) -> io::Result<()> {
     if without_time {
-        format!("[{}] {}", record.level(), record.args())
+        writeln!(fmt, "[{}] {}", record.level(), record.args())
     } else {
-        format!("[{}][{}] {}", time::now().strftime("%Y-%m-%d][%H:%M:%S.%f").unwrap(), record.level(), record.args())
+        writeln!(fmt, "[{}][{}] {}", time::now().strftime("%Y-%m-%d][%H:%M:%S.%f").unwrap(), record.level(), record.args())
     }
 }
 
-fn log_time_module(without_time: bool, record: &LogRecord) -> String {
+fn log_time_module(fmt: &mut Formatter, without_time: bool, record: &Record) -> io::Result<()> {
     if without_time {
-        format!("[{}] [{}] {}", record.level(), record.location().module_path(), record.args())
+        writeln!(fmt, "[{}] [{}] {}", record.level(), record.module_path().unwrap_or("*"), record.args())
     } else {
-        format!("[{}][{}] [{}] {}",
+        writeln!(fmt, "[{}][{}] [{}] {}",
                 time::now().strftime("%Y-%m-%d][%H:%M:%S.%f").unwrap(),
                 record.level(),
-                record.location().module_path(),
+                record.module_path().unwrap_or("*"),
                 record.args())
     }
 }
@@ -97,8 +99,8 @@ fn main() {
                  .help("Server address in SIP002 URL"))
         .get_matches();
 
-    let mut log_builder = LogBuilder::new();
-    log_builder.filter(None, LogLevelFilter::Info);
+    let mut log_builder = Builder::new();
+    log_builder.filter(None, LevelFilter::Info);
 
     let without_time = matches.is_present("LOG_WITHOUT_TIME");
 
@@ -106,25 +108,25 @@ fn main() {
     match debug_level {
         0 => {
             // Default filter
-            log_builder.format(move |r| log_time(without_time, r));
+            log_builder.format(move |fmt, r| log_time(fmt, without_time, r));
         }
         1 => {
-            let log_builder = log_builder.format(move |r| log_time_module(without_time, r));
-            log_builder.filter(Some("sslocal"), LogLevelFilter::Debug);
+            let log_builder = log_builder.format(move |fmt, r| log_time_module(fmt, without_time, r));
+            log_builder.filter(Some("sslocal"), LevelFilter::Debug);
         }
         2 => {
-            let log_builder = log_builder.format(move |r| log_time_module(without_time, r));
-            log_builder.filter(Some("sslocal"), LogLevelFilter::Debug)
-                       .filter(Some("shadowsocks"), LogLevelFilter::Debug);
+            let log_builder = log_builder.format(move |fmt, r| log_time_module(fmt, without_time, r));
+            log_builder.filter(Some("sslocal"), LevelFilter::Debug)
+                       .filter(Some("shadowsocks"), LevelFilter::Debug);
         }
         3 => {
-            let log_builder = log_builder.format(move |r| log_time_module(without_time, r));
-            log_builder.filter(Some("sslocal"), LogLevelFilter::Trace)
-                       .filter(Some("shadowsocks"), LogLevelFilter::Trace);
+            let log_builder = log_builder.format(move |fmt, r| log_time_module(fmt, without_time, r));
+            log_builder.filter(Some("sslocal"), LevelFilter::Trace)
+                       .filter(Some("shadowsocks"), LevelFilter::Trace);
         }
         _ => {
-            let log_builder = log_builder.format(move |r| log_time_module(without_time, r));
-            log_builder.filter(None, LogLevelFilter::Trace);
+            let log_builder = log_builder.format(move |fmt, r| log_time_module(fmt, without_time, r));
+            log_builder.filter(None, LevelFilter::Trace);
         }
     }
 
@@ -132,7 +134,7 @@ fn main() {
         log_builder.parse(&env_conf);
     }
 
-    log_builder.init().unwrap();
+    log_builder.init();
 
     let mut has_provided_config = false;
 
diff --git a/src/bin/server.rs b/src/bin/server.rs
index d4f11c5d..3b71c1aa 100644
--- a/src/bin/server.rs
+++ b/src/bin/server.rs
@@ -15,31 +15,33 @@ extern crate shadowsocks;
 extern crate time;
 
 use std::env;
+use std::io::{self, Write};
 
 use clap::{App, Arg};
 
-use env_logger::LogBuilder;
-use log::{LogLevelFilter, LogRecord};
+use env_logger::Builder;
+use env_logger::fmt::Formatter;
+use log::{LevelFilter, Record};
 
 use shadowsocks::{Config, ConfigType, ServerAddr, ServerConfig, run_server};
 use shadowsocks::plugin::PluginConfig;
 
-fn log_time(without_time: bool, record: &LogRecord) -> String {
+fn log_time(fmt: &mut Formatter, without_time: bool, record: &Record) -> io::Result<()> {
     if without_time {
-        format!("[{}] {}", record.level(), record.args())
+        writeln!(fmt, "[{}] {}", record.level(), record.args())
     } else {
-        format!("[{}][{}] {}", time::now().strftime("%Y-%m-%d][%H:%M:%S.%f").unwrap(), record.level(), record.args())
+        writeln!(fmt, "[{}][{}] {}", time::now().strftime("%Y-%m-%d][%H:%M:%S.%f").unwrap(), record.level(), record.args())
     }
 }
 
-fn log_time_module(without_time: bool, record: &LogRecord) -> String {
+fn log_time_module(fmt: &mut Formatter, without_time: bool, record: &Record) -> io::Result<()> {
     if without_time {
-        format!("[{}] [{}] {}", record.level(), record.location().module_path(), record.args())
+        writeln!(fmt, "[{}] [{}] {}", record.level(), record.module_path().unwrap_or("*"), record.args())
     } else {
-        format!("[{}][{}] [{}] {}",
+        writeln!(fmt, "[{}][{}] [{}] {}",
                 time::now().strftime("%Y-%m-%d][%H:%M:%S.%f").unwrap(),
                 record.level(),
-                record.location().module_path(),
+                record.module_path().unwrap_or("*"),
                 record.args())
     }
 }
@@ -89,8 +91,8 @@ fn main() {
                  .help("Disable time in log"))
         .get_matches();
 
-    let mut log_builder = LogBuilder::new();
-    log_builder.filter(None, LogLevelFilter::Info);
+    let mut log_builder = Builder::new();
+    log_builder.filter(None, LevelFilter::Info);
 
     let without_time = matches.is_present("LOG_WITHOUT_TIME");
 
@@ -98,25 +100,25 @@ fn main() {
     match debug_level {
         0 => {
             // Default filter
-            log_builder.format(move |r| log_time(without_time, r));
+            log_builder.format(move |fmt, r| log_time(fmt, without_time, r));
         }
         1 => {
-            let log_builder = log_builder.format(move |r| log_time_module(without_time, r));
-            log_builder.filter(Some("ssserver"), LogLevelFilter::Debug);
+            let log_builder = log_builder.format(move |fmt, r| log_time_module(fmt, without_time, r));
+            log_builder.filter(Some("ssserver"), LevelFilter::Debug);
         }
         2 => {
-            let log_builder = log_builder.format(move |r| log_time_module(without_time, r));
-            log_builder.filter(Some("ssserver"), LogLevelFilter::Debug)
-                       .filter(Some("shadowsocks"), LogLevelFilter::Debug);
+            let log_builder = log_builder.format(move |fmt, r| log_time_module(fmt, without_time, r));
+            log_builder.filter(Some("ssserver"), LevelFilter::Debug)
+                       .filter(Some("shadowsocks"), LevelFilter::Debug);
         }
         3 => {
-            let log_builder = log_builder.format(move |r| log_time_module(without_time, r));
-            log_builder.filter(Some("ssserver"), LogLevelFilter::Trace)
-                       .filter(Some("shadowsocks"), LogLevelFilter::Trace);
+            let log_builder = log_builder.format(move |fmt, r| log_time_module(fmt, without_time, r));
+            log_builder.filter(Some("ssserver"), LevelFilter::Trace)
+                       .filter(Some("shadowsocks"), LevelFilter::Trace);
         }
         _ => {
-            let log_builder = log_builder.format(move |r| log_time_module(without_time, r));
-            log_builder.filter(None, LogLevelFilter::Trace);
+            let log_builder = log_builder.format(move |fmt, r| log_time_module(fmt, without_time, r));
+            log_builder.filter(None, LevelFilter::Trace);
         }
     }
 
@@ -124,7 +126,7 @@ fn main() {
         log_builder.parse(&env_conf);
     }
 
-    log_builder.init().unwrap();
+    log_builder.init();
 
     let mut has_provided_config = false;
     let mut config = match matches.value_of("CONFIG") {
diff --git a/src/crypto/siv.rs b/src/crypto/siv.rs
index 5b982bad..392f8cb3 100644
--- a/src/crypto/siv.rs
+++ b/src/crypto/siv.rs
@@ -1,8 +1,8 @@
 //! Cipher defined with Miscreant
 
-use std::{iter, ptr};
+use std::ptr;
 
-use miscreant::{Aes128PmacSiv, Aes256PmacSiv};
+use miscreant::aead::{Algorithm, Aes128PmacSiv, Aes256PmacSiv};
 
 use crypto::{AeadDecryptor, AeadEncryptor};
 use crypto::{CipherResult, CipherType};
@@ -78,12 +78,12 @@ impl AeadEncryptor for MiscreantCipher {
 
         match self.cipher {
             MiscreantCryptoVariant::Aes128(ref mut cipher) => {
-                cipher.seal_in_place(iter::once(&self.nonce), &mut buf);
+                cipher.seal_in_place(&self.nonce, b"", &mut buf);
                 tag.copy_from_slice(&buf[..tag_len]);
                 output.copy_from_slice(&buf[tag_len..]);
             }
             MiscreantCryptoVariant::Aes256(ref mut cipher) => {
-                cipher.seal_in_place(iter::once(&self.nonce), &mut buf);
+                cipher.seal_in_place(&self.nonce, b"", &mut buf);
                 tag.copy_from_slice(&buf[..tag_len]);
                 output.copy_from_slice(&buf[tag_len..]);
             }
@@ -100,8 +100,8 @@ impl AeadDecryptor for MiscreantCipher {
         buf.put_slice(input);
 
         let result = match self.cipher {
-            MiscreantCryptoVariant::Aes128(ref mut cipher) => cipher.open_in_place(iter::once(&self.nonce), &mut buf),
-            MiscreantCryptoVariant::Aes256(ref mut cipher) => cipher.open_in_place(iter::once(&self.nonce), &mut buf),
+            MiscreantCryptoVariant::Aes128(ref mut cipher) => cipher.open_in_place(&self.nonce, b"", &mut buf),
+            MiscreantCryptoVariant::Aes256(ref mut cipher) => cipher.open_in_place(&self.nonce, b"", &mut buf),
         };
 
         result.map(|buf| {
diff --git a/src/lib.rs b/src/lib.rs
index bdffad41..6b098361 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -83,7 +83,7 @@ extern crate digest;
 extern crate miscreant;
 #[cfg(feature = "sodium")]
 extern crate libsodium_ffi;
-extern crate md_5 as md5;
+extern crate md5;
 extern crate openssl;
 extern crate ring;
 extern crate bytes;
diff --git a/tests/socks5.rs b/tests/socks5.rs
index 36ee00fd..273d75d2 100644
--- a/tests/socks5.rs
+++ b/tests/socks5.rs
@@ -54,17 +54,13 @@ impl Socks5TestServer {
     }
 
     pub fn run(&self) {
-        drop(env_logger::init());
-
         let svr_cfg = self.config.clone();
         thread::spawn(move || {
-            drop(env_logger::init());
             run_server(svr_cfg).unwrap();
         });
 
         let client_cfg = self.config.clone();
         thread::spawn(move || {
-            drop(env_logger::init());
             run_local(client_cfg).unwrap();
         });
 
diff --git a/tests/udp.rs b/tests/udp.rs
index 46e7edab..f224576c 100644
--- a/tests/udp.rs
+++ b/tests/udp.rs
@@ -49,7 +49,6 @@ fn get_client_addr() -> SocketAddr {
 
 fn start_server(bar: Arc<Barrier>) {
     thread::spawn(move || {
-                      drop(env_logger::init());
                       bar.wait();
                       run_server(get_config()).unwrap();
                   });
@@ -57,7 +56,6 @@ fn start_server(bar: Arc<Barrier>) {
 
 fn start_local(bar: Arc<Barrier>) {
     thread::spawn(move || {
-                      drop(env_logger::init());
                       bar.wait();
                       run_local(get_config()).unwrap();
                   });
@@ -67,8 +65,6 @@ fn start_udp_echo_server(bar: Arc<Barrier>) {
     use std::net::UdpSocket;
 
     thread::spawn(move || {
-        drop(env_logger::init());
-
         let l = UdpSocket::bind(UDP_ECHO_SERVER_ADDR).unwrap();
 
         bar.wait();