Resolving dependencies...
Downloading make-hard-links-0.2...
Configuring make-hard-links-0.2...
Building make-hard-links-0.2...
Failed to install make-hard-links-0.2
Build log ( /home/builder/.cabal/logs/make-hard-links-0.2.log ):
cabal: Entering directory '/tmp/cabal-tmp-19638/make-hard-links-0.2'
Configuring make-hard-links-0.2...
Building make-hard-links-0.2...
Preprocessing executable 'make-hard-links' for make-hard-links-0.2...
[1 of 3] Compiling Keys             ( Keys.hs, dist/build/make-hard-links/make-hard-links-tmp/Keys.o )

Keys.hs:19:1: warning: [-Wunused-imports]
    The import of ‘Data.Monoid’ is redundant
      except perhaps to import instances from ‘Data.Monoid’
    To import instances alone, use: import Data.Monoid()
[2 of 3] Compiling FindFiles        ( FindFiles.hs, dist/build/make-hard-links/make-hard-links-tmp/FindFiles.o )

FindFiles.hs:44:13: error:
    Ambiguous occurrence ‘isSymbolicLink’
    It could refer to either ‘System.Directory.isSymbolicLink’,
                             imported from ‘System.Directory’ at FindFiles.hs:10:1-23
                          or ‘System.Posix.Files.isSymbolicLink’,
                             imported from ‘System.Posix.Files’ at FindFiles.hs:14:1-25
                             (and originally defined in ‘unix-2.7.2.0:System.Posix.Files.Common’)
cabal: Leaving directory '/tmp/cabal-tmp-19638/make-hard-links-0.2'
cabal: Error: some packages failed to install:
make-hard-links-0.2 failed during the building phase. The exception was:
ExitFailure 1