Resolving dependencies... Configuring ansi-terminal-0.6.2.3... Configuring call-stack-0.1.0... Building call-stack-0.1.0... Building ansi-terminal-0.6.2.3... Installed call-stack-0.1.0 Configuring extensible-exceptions-0.1.1.4... Building extensible-exceptions-0.1.1.4... Installed extensible-exceptions-0.1.1.4 Configuring mtl-2.2.1... Configuring old-locale-1.0.0.7... Installed ansi-terminal-0.6.2.3 Building mtl-2.2.1... Building old-locale-1.0.0.7... Configuring network-2.6.3.1... Installed old-locale-1.0.0.7 Configuring random-1.1... Installed mtl-2.2.1 Building network-2.6.3.1... Building random-1.1... Configuring stm-2.4.4.1... Installed random-1.1 Building stm-2.4.4.1... Configuring primitive-0.6.2.0... Installed stm-2.4.4.1 Building primitive-0.6.2.0... Configuring transformers-compat-0.5.1.4... Installed network-2.6.3.1 Building transformers-compat-0.5.1.4... Configuring text-1.2.2.1... Installed transformers-compat-0.5.1.4 Building text-1.2.2.1... Configuring unix-compat-0.4.3.1... Installed primitive-0.6.2.0 Building unix-compat-0.4.3.1... Configuring utf8-string-1.0.1.1... Installed unix-compat-0.4.3.1 Building utf8-string-1.0.1.1... Configuring HUnit-1.5.0.0... Installed utf8-string-1.0.1.1 Building HUnit-1.5.0.0... Installed HUnit-1.5.0.0 Configuring old-time-1.1.0.3... Building old-time-1.1.0.3... Configuring ansi-wl-pprint-0.6.7.3... Installed text-1.2.2.1 Building ansi-wl-pprint-0.6.7.3... Configuring IfElse-0.85... Installed ansi-wl-pprint-0.6.7.3 Building IfElse-0.85... Configuring regex-base-0.93.2... Installed old-time-1.1.0.3 Building regex-base-0.93.2... Configuring async-2.1.1... Installed IfElse-0.85 Building async-2.1.1... Configuring tf-random-0.5... Installed regex-base-0.93.2 Building tf-random-0.5... Configuring hslogger-1.2.10... Installed async-2.1.1 Building hslogger-1.2.10... Installed tf-random-0.5 Configuring parsec-3.1.11... Building parsec-3.1.11... Configuring optparse-applicative-0.13.0.0... Installed hslogger-1.2.10 Building optparse-applicative-0.13.0.0... Configuring regex-posix-0.95.2... Installed parsec-3.1.11 Configuring QuickCheck-2.9.2... Installed optparse-applicative-0.13.0.0 Building regex-posix-0.95.2... Building QuickCheck-2.9.2... Installed regex-posix-0.95.2 Configuring regex-compat-0.95.1... Building regex-compat-0.95.1... Installed regex-compat-0.95.1 Configuring MissingH-1.4.0.1... Building MissingH-1.4.0.1... Installed QuickCheck-2.9.2 Installed MissingH-1.4.0.1 Configuring git-repair-1.20140914... Failed to install git-repair-1.20140914 Build log ( /home/builder/.cabal/logs/git-repair-1.20140914.log ): cabal: Entering directory '/tmp/cabal-tmp-27975/git-repair-1.20140914' cabal: Leaving directory '/tmp/cabal-tmp-27975/git-repair-1.20140914' cabal: Error: some packages failed to install: git-repair-1.20140914 failed during the configure step. The exception was: user error ('/opt/ghc/8.0.2/bin/ghc' exited with an error: /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/PosixFiles.hs:13:1: warning: [-Wtabs] Tab character found here, and in one further location. Please use spaces instead. /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/PartialPrelude.hs:47:1: warning: [-Wtabs] Tab character found here, and in one further location. Please use spaces instead. /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/Monad.hs:41:1: warning: [-Wtabs] Tab character found here, and in four further locations. Please use spaces instead. /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/FileSystemEncoding.hs:11:1: warning: [-Wtabs] Tab character found here, and in 22 further locations. Please use spaces instead. /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/Env.hs:49:1: warning: [-Wtabs] Tab character found here, and in five further locations. Please use spaces instead. /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/UserInfo.hs:11:1: warning: [-Wtabs] Tab character found here, and in 7 further locations. Please use spaces instead. /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/Path.hs:44:1: warning: [-Wtabs] Tab character found here, and in 93 further locations. Please use spaces instead. /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/Data.hs:13:1: warning: [-Wtabs] Tab character found here, and in one further location. Please use spaces instead. /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/Exception.hs:49:1: warning: [-Wtabs] Tab character found here, and in three further locations. Please use spaces instead. /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/Misc.hs:40:1: warning: [-Wtabs] Tab character found here, and in 44 further locations. Please use spaces instead. /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/Process.hs:174:28: error: Ambiguous occurrence ‘createPipe’ It could refer to either ‘System.Process.createPipe’, imported from ‘System.Process’ at /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/Process.hs:40:1-57 (and originally defined in ‘System.Process.Internals’) or ‘System.Posix.IO.createPipe’, imported from ‘System.Posix.IO’ at /tmp/cabal-tmp-27975/git-repair-1.20140914/Utility/Process.hs:48:1-22 (and originally defined in ‘unix-2.7.2.0:System.Posix.IO.Common’) )