Monads.failing

main: test/Spec/Monads/Monads.hs:20:1: (Instance) :: Functor Identity'
main: test/Spec/Monads/Monads.hs:23:1: (Instance) :: Applicative Identity'
main: test/Spec/Monads/Monads.hs:27:1: (Instance) :: Monad Identity'