Resolving dependencies...
Configuring cmdargs-0.10.14...
Configuring ghc-paths-0.1.0.9...
Building cmdargs-0.10.14...
Building ghc-paths-0.1.0.9...
Configuring base-compat-0.9.1...
Installed ghc-paths-0.1.0.9
Building base-compat-0.9.1...
Configuring mtl-2.2.1...
Installed base-compat-0.9.1
Building mtl-2.2.1...
Configuring dlist-0.8.0.2...
Installed mtl-2.2.1
Building dlist-0.8.0.2...
Configuring old-locale-1.0.0.7...
Installed dlist-0.8.0.2
Building old-locale-1.0.0.7...
Configuring primitive-0.6.1.0...
Installed old-locale-1.0.0.7
Building primitive-0.6.1.0...
Configuring syb-0.6...
Installed cmdargs-0.10.14
Building syb-0.6...
Configuring time-locale-compat-0.1.1.3...
Installed primitive-0.6.1.0
Configuring text-1.2.2.1...
Installed syb-0.6
Building time-locale-compat-0.1.1.3...
Building text-1.2.2.1...
Configuring transformers-compat-0.5.1.4...
Installed time-locale-compat-0.1.1.3
Building transformers-compat-0.5.1.4...
Configuring utf8-string-1.0.1.1...
Installed transformers-compat-0.5.1.4
Building utf8-string-1.0.1.1...
Installed utf8-string-1.0.1.1
Configuring regex-base-0.93.2...
Building regex-base-0.93.2...
Configuring old-time-1.1.0.3...
Installed regex-base-0.93.2
Building old-time-1.1.0.3...
Configuring tagged-0.8.5...
Installed text-1.2.2.1
Configuring vector-0.11.0.0...
Installed old-time-1.1.0.3
Building tagged-0.8.5...
Building vector-0.11.0.0...
Installed tagged-0.8.5
Configuring hashable-1.2.4.0...
Building hashable-1.2.4.0...
Configuring polyparse-1.12...
Installed hashable-1.2.4.0
Building polyparse-1.12...
Configuring parsec-3.1.11...
Installed polyparse-1.12
Building parsec-3.1.11...
Installed parsec-3.1.11
Configuring unordered-containers-0.2.7.1...
Building unordered-containers-0.2.7.1...
Installed vector-0.11.0.0
Configuring cpphs-1.20.2...
Building cpphs-1.20.2...
Installed unordered-containers-0.2.7.1
Configuring regex-tdfa-1.2.2...
Building regex-tdfa-1.2.2...
Configuring scientific-0.3.4.9...
Installed cpphs-1.20.2
Building scientific-0.3.4.9...
Installed scientific-0.3.4.9
Configuring haskell-src-exts-1.19.1...
Building haskell-src-exts-1.19.1...
Configuring attoparsec-0.13.1.0...
Installed regex-tdfa-1.2.2
Building attoparsec-0.13.1.0...
Installed attoparsec-0.13.1.0
Configuring aeson-1.0.2.1...
Building aeson-1.0.2.1...
Installed aeson-1.0.2.1
Installed haskell-src-exts-1.19.1
Configuring buildwrapper-0.7.0...
Building buildwrapper-0.7.0...
Failed to install buildwrapper-0.7.0
Build log ( /home/builder/.cabal/logs/buildwrapper-0.7.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-19888/buildwrapper-0.7.0'
Configuring buildwrapper-0.7.0...
Building buildwrapper-0.7.0...
Preprocessing library buildwrapper-0.7.0...
[1 of 7] Compiling Language.Haskell.BuildWrapper.Base ( src/Language/Haskell/BuildWrapper/Base.hs, dist/build/Language/Haskell/BuildWrapper/Base.o )

src/Language/Haskell/BuildWrapper/Base.hs:33:1: error:
    Failed to load interface for ‘System.IO.UTF8’
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-19888/buildwrapper-0.7.0'
cabal: Error: some packages failed to install:
buildwrapper-0.7.0 failed during the building phase. The exception was:
ExitFailure 1