message: bump generic-array dependents' versions
diff: @@ -13,10 +13,10 @@ base64 = "0.5"
  byteorder = "1.0"
  bytes = "0.4"
  fallible-iterator = "0.1"
  -generic-array = "0.7"
  -hmac = "0.1"
  +generic-array = "0.8"
  +hmac = "0.4"
  md5 = "0.3"
  memchr = "1.0"
  rand = "0.3"
  -sha2 = "0.5"
  +sha2 = "0.6"
  stringprep = "0.1"
  