message: serde feature for ndarray and rc feature for serde
diff: @@ -28,10 +28,10 @@ argmin_testfunctions = { git = "https://github.com/argmin-rs/argmin-testfunction
  # argmin_codegen = "0.1.6"
  # argmin_testfunctions = "0.1.1"
  rand = "0.6.1"
  -serde = { version = "1.0", features = ["derive"] }
  +serde = { version = "1.0", features = ["derive", "rc"] }
  [dev-dependencies]
  -ndarray = "0.12.1"
  +ndarray = { version = "0.12.1", features = ["serde-1"] }
  ndarray-linalg = { version = "0.10.0", features = ["openblas"] }
  paste = "0.1.4"
  