Resolving dependencies...
Configuring mtl-2.2.1...
Configuring safe-0.3.10...
Building mtl-2.2.1...
Building safe-0.3.10...
Installed safe-0.3.10
Configuring text-1.2.2.1...
Building text-1.2.2.1...
Installed mtl-2.2.1
Configuring regex-base-0.93.2...
Building regex-base-0.93.2...
Installed regex-base-0.93.2
Configuring regex-posix-0.95.2...
Building regex-posix-0.95.2...
Installed regex-posix-0.95.2
Installed text-1.2.2.1
Configuring parsec-3.1.11...
Building parsec-3.1.11...
Installed parsec-3.1.11
Configuring cgen-0.0.1...
Building cgen-0.0.1...
Failed to install cgen-0.0.1
Build log ( /home/builder/.cabal/logs/cgen-0.0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-28229/cgen-0.0.1'
Configuring cgen-0.0.1...
Building cgen-0.0.1...
Preprocessing executable 'cgen' for cgen-0.0.1...
[1 of 8] Compiling Utils            ( src/Utils.hs, dist/build/cgen/cgen-tmp/Utils.o )
[2 of 8] Compiling Options          ( src/Options.hs, dist/build/cgen/cgen-tmp/Options.o )
[3 of 8] Compiling HeaderData       ( src/HeaderData.hs, dist/build/cgen/cgen-tmp/HeaderData.o )
[4 of 8] Compiling HeaderParser     ( src/HeaderParser.hs, dist/build/cgen/cgen-tmp/HeaderParser.o )

src/HeaderParser.hs:357:9: error:
    • Non type-variable argument
        in the constraint: Text.Parsec.Prim.Stream s m Char
      (Use FlexibleContexts to permit this)
    • When checking the inferred type
        ignoreBraces' :: forall (m :: * -> *) u s a.
                         (Num a, Eq a, Text.Parsec.Prim.Stream s m Char) =>
                         a -> Text.Parsec.Prim.ParsecT s u m ()
      In an equation for ‘ignoreBraces’:
          ignoreBraces
            = ignoreBraces' (0 :: Int)
            where
                ignoreBraces' n
                  = do { skipMany $ noneOf "{}";
                         .... }
cabal: Leaving directory '/tmp/cabal-tmp-28229/cgen-0.0.1'
cabal: Error: some packages failed to install:
cgen-0.0.1 failed during the building phase. The exception was:
ExitFailure 1