Resolving dependencies...
Configuring mtl-2.2.1...
Configuring syb-0.6...
Building mtl-2.2.1...
Building syb-0.6...
Installed syb-0.6
Configuring text-1.2.2.1...
Configuring haskell-src-1.0.2.0...
Installed mtl-2.2.1
Building text-1.2.2.1...
Building haskell-src-1.0.2.0...
Configuring utf8-string-1.0.1.1...
Installed haskell-src-1.0.2.0
Building utf8-string-1.0.1.1...
Installed text-1.2.2.1
Configuring parsec-3.1.11...
Building parsec-3.1.11...
Configuring blaze-builder-0.4.0.2...
Installed utf8-string-1.0.1.1
Building blaze-builder-0.4.0.2...
Installed blaze-builder-0.4.0.2
Installed parsec-3.1.11
Configuring mustache2hs-0.2.1...
Building mustache2hs-0.2.1...
Failed to install mustache2hs-0.2.1
Build log ( /home/builder/.cabal/logs/mustache2hs-0.2.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-8110/mustache2hs-0.2.1'
Configuring mustache2hs-0.2.1...
Building mustache2hs-0.2.1...
Preprocessing executable 'mustache2hs' for mustache2hs-0.2.1...
[1 of 2] Compiling ParseRecords     ( ParseRecords.hs, dist/build/mustache2hs/mustache2hs-tmp/ParseRecords.o )

ParseRecords.hs:36:1: warning: [-Wtabs]
    Tab character found here, and in 19 further locations.
    Please use spaces instead.
[2 of 2] Compiling Main             ( mustache2hs.hs, dist/build/mustache2hs/mustache2hs-tmp/Main.o )

mustache2hs.hs:127:9: error:
    • Non type-variable argument in the constraint: Stream s m Char
      (Use FlexibleContexts to permit this)
    • When checking the inferred type
        takeWhile1 :: forall (m :: * -> *) u s.
                      Stream s m Char =>
                      (Char -> Bool) -> ParsecT s u m Text
      In an equation for ‘parser’:
          parser
            = do { body <- many1
                             (try (withPos comment) <|> try (withPos sectionInv)
                              <|> try (withPos section)
                              <|> try (withPos partial)
                              <|> try (withPos tripleVar)
                              <|> try (withPos ampVar)
                              <|> try (withPos (mustache False (var True)))
                              <|> try (withPos singlebrace)
                              <|> try (withPos txt));
                   return $ filter (not . isMuComment . snd) body }
            where
                comment
                  = mustache True
                    $ do { _ <- char '!';
                           .... }
                sectionInv
                  = liftA2 MuSectionInv (sectionPiece '^') parser <* sectionPiece '/'
                section
                  = liftA2 MuSection (sectionPiece '#') parser <* sectionPiece '/'
                sectionPiece c
                  = mustache True
                    $ do { _ <- char c;
                           .... }
                ....
cabal: Leaving directory '/tmp/cabal-tmp-8110/mustache2hs-0.2.1'
cabal: Error: some packages failed to install:
mustache2hs-0.2.1 failed during the building phase. The exception was:
ExitFailure 1