message: cargo: add fail 0.3
diff: @@ -13,6 +13,7 @@ actix = "^0.8.1"
  cfg-if = "^0.1.9"
  env_logger = "^0.6.2"
  envsubst = "^0.1.0"
  +fail = "^0.3.0"
  failure = "^0.1.5"
  futures = "^0.1.28"
  chrono = "^0.4.7"
  @@ -36,6 +37,9 @@ mockito = "^0.17"
  proptest = "^0.9"
  tokio = "^0.1"
  +[features]
  +failpoints = [ "fail/failpoints" ]
  +
  [profile.release]
  lto = true
  