Resolving dependencies...
Configuring logfloat-0.11.0...
Building logfloat-0.11.0...
Failed to install logfloat-0.11.0
Build log ( /home/builder/.cabal/logs/logfloat-0.11.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-1625/logfloat-0.11.0'
Configuring logfloat-0.11.0...
Building logfloat-0.11.0...
Preprocessing library logfloat-0.11.0...

Data/Number/LogFloat.hs:13:16: warning:
    The -fvia-C flag does nothing; it will be removed in a future GHC release

Data/Number/LogFloat.hs:13:16: warning:
    -fglasgow-exts is deprecated: Use individual extensions instead

Data/Number/Transfinite.hs:2:16: warning:
    -fglasgow-exts is deprecated: Use individual extensions instead

Data/Number/PartialOrd.hs:1:14: warning:
    -XOverlappingInstances is deprecated: instead use per-instance pragmas OVERLAPPING/OVERLAPPABLE/OVERLAPS
[1 of 4] Compiling Hugs.RealFloat   ( Hugs/RealFloat.hs, dist/build/Hugs/RealFloat.o )
[2 of 4] Compiling Data.Number.PartialOrd ( Data/Number/PartialOrd.hs, dist/build/Data/Number/PartialOrd.o )
[3 of 4] Compiling Data.Number.Transfinite ( Data/Number/Transfinite.hs, dist/build/Data/Number/Transfinite.o )
[4 of 4] Compiling Data.Number.LogFloat ( Data/Number/LogFloat.hs, dist/build/Data/Number/LogFloat.o )

Data/Number/LogFloat.hs:77:1: error:
    Failed to load interface for ‘Data.Number.RealToFrac’
    Use -v to see a list of the files searched for.
cabal: Leaving directory '/tmp/cabal-tmp-1625/logfloat-0.11.0'
cabal: Error: some packages failed to install:
logfloat-0.11.0 failed during the building phase. The exception was:
ExitFailure 1