Resolving dependencies...
Configuring pcre-light-0.4.0.4...
Configuring hscolour-1.24.1...
Building hscolour-1.24.1...
Building pcre-light-0.4.0.4...
Installed pcre-light-0.4.0.4
Installed hscolour-1.24.1
Downloading ghc-core-0.4.2...
Configuring ghc-core-0.4.2...
Building ghc-core-0.4.2...
Failed to install ghc-core-0.4.2
Build log ( /home/builder/.cabal/logs/ghc-core-0.4.2.log ):
cabal: Entering directory '/tmp/cabal-tmp-9984/ghc-core-0.4.2'
Configuring ghc-core-0.4.2...
Building ghc-core-0.4.2...
Preprocessing executable 'ghc-core' for ghc-core-0.4.2...
[1 of 1] Compiling Main             ( ghc-core.hs, dist/build/ghc-core/ghc-core-tmp/Main.o )

ghc-core.hs:45:43: error:
    Module
    ‘Language.Haskell.HsColour.Options’
    does not export
    ‘Literate(..)’
cabal: Leaving directory '/tmp/cabal-tmp-9984/ghc-core-0.4.2'
cabal: Error: some packages failed to install:
ghc-core-0.4.2 failed during the building phase. The exception was:
ExitFailure 1