Resolving dependencies...
Configuring old-locale-1.0.0.7...
Configuring random-1.1...
Building old-locale-1.0.0.7...
Building random-1.1...
Configuring mtl-2.2.1...
Installed old-locale-1.0.0.7
Building mtl-2.2.1...
Installed random-1.1
Configuring old-time-1.1.0.3...
Building old-time-1.1.0.3...
Installed mtl-2.2.1
Installed old-time-1.1.0.3
Configuring gf-3.2...
Failed to install gf-3.2
Build log ( /home/builder/.cabal/logs/gf-3.2.log ):
cabal: Entering directory '/tmp/cabal-tmp-4293/gf-3.2'
cabal: Leaving directory '/tmp/cabal-tmp-4293/gf-3.2'
cabal: Error: some packages failed to install:
gf-3.2 failed during the configure step. The exception was:
user error ('/opt/ghc/8.0.2/bin/ghc' exited with an error:

/tmp/cabal-tmp-4293/gf-3.2/dist/setup/setup.hs:92:10: error:
Ambiguous occurrence ‘die’
It could refer to either ‘Distribution.Simple.Utils.die’,
imported from ‘Distribution.Simple.Utils’ at
/tmp/cabal-tmp-4293/gf-3.2/dist/setup/setup.hs:6:1-32
or ‘System.Exit.die’,
imported from ‘System.Exit’ at
/tmp/cabal-tmp-4293/gf-3.2/dist/setup/setup.hs:18:1-18

/tmp/cabal-tmp-4293/gf-3.2/dist/setup/setup.hs:336:27: error:
Ambiguous occurrence ‘die’
It could refer to either ‘Distribution.Simple.Utils.die’,
imported from ‘Distribution.Simple.Utils’ at
/tmp/cabal-tmp-4293/gf-3.2/dist/setup/setup.hs:6:1-32
or ‘System.Exit.die’,
imported from ‘System.Exit’ at
/tmp/cabal-tmp-4293/gf-3.2/dist/setup/setup.hs:18:1-18

/tmp/cabal-tmp-4293/gf-3.2/dist/setup/setup.hs:342:71: error:
Ambiguous occurrence ‘exeExtension’
It could refer to either ‘Distribution.Simple.BuildPaths.exeExtension’,
imported from ‘Distribution.Simple.BuildPaths’ at
/tmp/cabal-tmp-4293/gf-3.2/dist/setup/setup.hs:5:1-37
or ‘System.Directory.exeExtension’,
imported from ‘System.Directory’ at
/tmp/cabal-tmp-4293/gf-3.2/dist/setup/setup.hs:15:1-23
(and originally defined in
‘directory-1.2.6.2:System.Directory.Internal.Config’)
)