Resolving dependencies...
Configuring xosd-0.1...
Building xosd-0.1...
Failed to install xosd-0.1
Build log ( /home/builder/.cabal/logs/xosd-0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-7181/xosd-0.1'
Configuring xosd-0.1...
Building xosd-0.1...
Preprocessing library xosd-0.1...
[1 of 1] Compiling Graphics.XOSD.Base ( dist/build/Graphics/XOSD/Base.hs, dist/build/Graphics/XOSD/Base.o )

Graphics/XOSD/Base.hsc:129:14: error:
    parse error on input ‘<-’
    Perhaps this statement should be within a 'do' block?
cabal: Leaving directory '/tmp/cabal-tmp-7181/xosd-0.1'
cabal: Error: some packages failed to install:
xosd-0.1 failed during the building phase. The exception was:
ExitFailure 1