Resolving dependencies...
Configuring call-stack-0.1.0...
Configuring ansi-terminal-0.6.2.3...
Building ansi-terminal-0.6.2.3...
Building call-stack-0.1.0...
Installed call-stack-0.1.0
Configuring ghc-paths-0.1.0.9...
Installed ansi-terminal-0.6.2.3
Configuring mtl-2.2.1...
Building mtl-2.2.1...
Building ghc-paths-0.1.0.9...
Configuring old-locale-1.0.0.7...
Installed ghc-paths-0.1.0.9
Building old-locale-1.0.0.7...
Configuring hspec-discover-2.3.2...
Installed mtl-2.2.1
Building hspec-discover-2.3.2...
Configuring random-1.1...
Installed old-locale-1.0.0.7
Building random-1.1...
Configuring setenv-0.1.1.3...
Installed hspec-discover-2.3.2
Building setenv-0.1.1.3...
Configuring primitive-0.6.2.0...
Installed random-1.1
Configuring stm-2.4.4.1...
Installed setenv-0.1.1.3
Building primitive-0.6.2.0...
Building stm-2.4.4.1...
Configuring syb-0.6...
Installed stm-2.4.4.1
Building syb-0.6...
Configuring transformers-compat-0.5.1.4...
Installed primitive-0.6.2.0
Configuring text-1.2.2.1...
Installed syb-0.6
Building transformers-compat-0.5.1.4...
Building text-1.2.2.1...
Configuring HUnit-1.5.0.0...
Installed transformers-compat-0.5.1.4
Building HUnit-1.5.0.0...
Installed HUnit-1.5.0.0
Configuring async-2.1.1...
Building async-2.1.1...
Configuring tf-random-0.5...
Installed async-2.1.1
Building tf-random-0.5...
Configuring old-time-1.1.0.3...
Installed tf-random-0.5
Building old-time-1.1.0.3...
Configuring hspec-expectations-0.8.2...
Installed text-1.2.2.1
Building hspec-expectations-0.8.2...
Configuring exceptions-0.8.3...
Installed old-time-1.1.0.3
Building exceptions-0.8.3...
Installed hspec-expectations-0.8.2
Configuring QuickCheck-2.9.2...
Building QuickCheck-2.9.2...
Configuring polyparse-1.12...
Installed exceptions-0.8.3
Building polyparse-1.12...
Installed polyparse-1.12
Configuring cpphs-1.20.2...
Building cpphs-1.20.2...
Configuring hint-0.6.0...
Installed QuickCheck-2.9.2
Building hint-0.6.0...
Configuring quickcheck-io-0.1.4...
Installed cpphs-1.20.2
Building quickcheck-io-0.1.4...
Installed quickcheck-io-0.1.4
Configuring hspec-core-2.3.2...
Building hspec-core-2.3.2...
Configuring haskell-src-exts-1.19.0...
Installed hspec-core-2.3.2
Configuring hspec-2.3.2...
Installed hint-0.6.0
Building haskell-src-exts-1.19.0...
Building hspec-2.3.2...
Installed hspec-2.3.2
Installed haskell-src-exts-1.19.0
Configuring MuCheck-0.1.2.0...
Building MuCheck-0.1.2.0...
Failed to install MuCheck-0.1.2.0
Build log ( /home/builder/.cabal/logs/MuCheck-0.1.2.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-20640/MuCheck-0.1.2.0'
Configuring MuCheck-0.1.2.0...
Building MuCheck-0.1.2.0...
Preprocessing library MuCheck-0.1.2.0...
[1 of 8] Compiling MuCheck.Utils.Print ( src/MuCheck/Utils/Print.hs, dist/build/MuCheck/Utils/Print.o )
[2 of 8] Compiling MuCheck.Utils.Common ( src/MuCheck/Utils/Common.hs, dist/build/MuCheck/Utils/Common.o )

src/MuCheck/Utils/Common.hs:45:12: error:
    • Could not deduce (Num n0)
      from the context: (RandomGen g, Num n)
        bound by the type signature for:
                   sampleF :: (RandomGen g, Num n) => g -> Rational -> [t] -> [t]
        at src/MuCheck/Utils/Common.hs:45:12-62
      The type variable ‘n0’ is ambiguous
    • In the ambiguity check for ‘sampleF’
      To defer the ambiguity check to use sites, enable AllowAmbiguousTypes
      In the type signature:
        sampleF :: (RandomGen g, Num n) => g -> Rational -> [t] -> [t]
cabal: Leaving directory '/tmp/cabal-tmp-20640/MuCheck-0.1.2.0'
cabal: Error: some packages failed to install:
MuCheck-0.1.2.0 failed during the building phase. The exception was:
ExitFailure 1