constraints: MonadRandom ==0.3,
             array ==0.5.0.0,
             attoparsec ==0.12.1.2,
             base ==4.7.0.1,
             base-unicode-symbols ==0.2.2.4,
             bifunctors ==4.1.1.1,
             blaze-builder ==0.3.3.4,
             bytestring ==0.10.4.0,
             case-insensitive ==1.2.0.3,
             charset ==0.3.7,
             comonad ==4.2.2,
             containers ==0.5.5.1,
             contravariant ==1.2.0.1,
             deepseq ==1.3.0.2,
             distributive ==0.4.4,
             either ==4.3.2.1,
             errors ==1.4.7,
             exceptions ==0.6.1,
             free ==4.10.0.1,
             ghc-prim ==0.3.1.0,
             hashable ==1.2.3.1,
             http-types ==0.8.5,
             integer-gmp ==0.5.1.0,
             lifted-base ==0.2.3.3,
             mmorph ==1.0.4,
             monad-control ==1.0.0.1,
             mtl ==2.2.1,
             nats ==1,
             network ==2.6.0.2,
             old-locale ==1.0.0.6,
             parsec ==3.1.7,
             parsers ==0.12.1.1,
             prelude-extras ==0.4,
             pretty ==1.1.1.1,
             profunctors ==4.3.2,
             random ==1.0.1.1,
             resourcet ==1.1.3.3,
             rts ==1.0,
             safe ==0.3.6,
             scientific ==0.3.3.5,
             semigroupoids ==4.2,
             semigroups ==0.16.0.1,
             stm ==2.4.3,
             tagged ==0.7.2,
             template-haskell ==2.9.0.0,
             text ==1.2.0.3,
             time ==1.4.2,
             transformers ==0.4.1.0,
             transformers-base ==0.4.3,
             transformers-compat ==0.3.3.4,
             unix ==2.7.0.1,
             unordered-containers ==0.2.5.1,
             vault ==0.3.0.4,
             void ==0.7,
             wai ==3.0.2.1