message: Turning off default features for libsecp256k1
diff: @@ -21,7 +21,7 @@ ed25519-dalek = { version = "1.0.0", default-features = false, features = ["rand
  failure = { version = "0.1.8", default-features = false, features = ["failure_derive"] }
  hex = { version = "0.4.2", default-features = false }
  hex_fmt = "0.3.0"
  -libsecp256k1 = "0.3.5"
  +libsecp256k1 = { version = "0.3.5", default-features = false }
  num-derive = { version = "0.3.0", default-features = false }
  num-integer = { version = "0.1.42", default-features = false }
  num-rational = { version = "0.3.0", default-features = false }
  