Resolving dependencies...
Configuring HRay-1.2.0...
Building HRay-1.2.0...
Failed to install HRay-1.2.0
Build log ( /home/builder/.cabal/logs/HRay-1.2.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-551/HRay-1.2.0'
Configuring HRay-1.2.0...
Warning: 'ghc-options: -prof' is not necessary and will lead to problems when
used on a library. Use the configure flag --enable-library-profiling and/or
--enable-profiling.
Building HRay-1.2.0...
Preprocessing executable 'HRay' for HRay-1.2.0...
[1 of 6] Compiling HRayMath         ( HRayMath.lhs, dist/build/HRay/HRay-tmp/HRayMath.o )

HRayMath.lhs:98:32: error:
    Ambiguous occurrence ‘*>’
    It could refer to either ‘Prelude.*>’,
                             imported from ‘Prelude’ at HRayMath.lhs:10:10-17
                             (and originally defined in ‘GHC.Base’)
                          or ‘HRayMath.*>’, defined at HRayMath.lhs:71:11

HRayMath.lhs:177:49: error:
    Ambiguous occurrence ‘*>’
    It could refer to either ‘Prelude.*>’,
                             imported from ‘Prelude’ at HRayMath.lhs:10:10-17
                             (and originally defined in ‘GHC.Base’)
                          or ‘HRayMath.*>’, defined at HRayMath.lhs:71:11

HRayMath.lhs:186:44: error:
    Ambiguous occurrence ‘*>’
    It could refer to either ‘Prelude.*>’,
                             imported from ‘Prelude’ at HRayMath.lhs:10:10-17
                             (and originally defined in ‘GHC.Base’)
                          or ‘HRayMath.*>’, defined at HRayMath.lhs:71:11

HRayMath.lhs:193:29: error:
    Ambiguous occurrence ‘*>’
    It could refer to either ‘Prelude.*>’,
                             imported from ‘Prelude’ at HRayMath.lhs:10:10-17
                             (and originally defined in ‘GHC.Base’)
                          or ‘HRayMath.*>’, defined at HRayMath.lhs:71:11

HRayMath.lhs:199:37: error:
    Ambiguous occurrence ‘*>’
    It could refer to either ‘Prelude.*>’,
                             imported from ‘Prelude’ at HRayMath.lhs:10:10-17
                             (and originally defined in ‘GHC.Base’)
                          or ‘HRayMath.*>’, defined at HRayMath.lhs:71:11

HRayMath.lhs:199:52: error:
    Ambiguous occurrence ‘*>’
    It could refer to either ‘Prelude.*>’,
                             imported from ‘Prelude’ at HRayMath.lhs:10:10-17
                             (and originally defined in ‘GHC.Base’)
                          or ‘HRayMath.*>’, defined at HRayMath.lhs:71:11

HRayMath.lhs:201:23: error:
    Ambiguous occurrence ‘*>’
    It could refer to either ‘Prelude.*>’,
                             imported from ‘Prelude’ at HRayMath.lhs:10:10-17
                             (and originally defined in ‘GHC.Base’)
                          or ‘HRayMath.*>’, defined at HRayMath.lhs:71:11
cabal: Leaving directory '/tmp/cabal-tmp-551/HRay-1.2.0'
cabal: Error: some packages failed to install:
HRay-1.2.0 failed during the building phase. The exception was:
ExitFailure 1