gistfile1.txt

    Configuring copilot-core-2.1.2...
    Building copilot-core-2.1.2...
    Preprocessing library copilot-core-2.1.2...
    [ 1 of 23] Compiling Copilot.Core.Type.Equality ( src/Copilot/Core/Type/Equality.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Type/Equality.o )
    [ 2 of 23] Compiling Copilot.Core.Random.Weights ( src/Copilot/Core/Random/Weights.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Random/Weights.o )
    [ 3 of 23] Compiling Copilot.Core.Type.Dynamic ( src/Copilot/Core/Type/Dynamic.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Type/Dynamic.o )
    [ 4 of 23] Compiling Copilot.Core.Type ( src/Copilot/Core/Type.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Type.o )
    [ 5 of 23] Compiling Copilot.Core.Type.Uninitialized ( src/Copilot/Core/Type/Uninitialized.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Type/Uninitialized.o )
    [ 6 of 23] Compiling Copilot.Core.Type.Show ( src/Copilot/Core/Type/Show.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Type/Show.o )
    [ 7 of 23] Compiling Copilot.Core.Operators ( src/Copilot/Core/Operators.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Operators.o )
    [ 8 of 23] Compiling Copilot.Core.Expr ( src/Copilot/Core/Expr.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Expr.o )
    [ 9 of 23] Compiling Copilot.Core.Spec ( src/Copilot/Core/Spec.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Spec.o )
    [10 of 23] Compiling Copilot.Core.External ( src/Copilot/Core/External.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/External.o )
    [11 of 23] Compiling Copilot.Core.MakeTags ( src/Copilot/Core/MakeTags.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/MakeTags.o )
    [12 of 23] Compiling Copilot.Core.Error ( src/Copilot/Core/Error.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Error.o )
    [13 of 23] Compiling Copilot.Core.Random.Gen ( src/Copilot/Core/Random/Gen.hs, .stack-work/dist/x86_64-linux/Cabal-1.22.4.0/build/Copilot/Core/Random/Gen.o )
    
    src/Copilot/Core/Random/Gen.hs:37:10:
        No instance for (Applicative Gen)
          arising from the superclasses of an instance declaration
        In the instance declaration for ‘Monad Gen’