Resolving dependencies...
Configuring parallel-3.2.1.0...
Building parallel-3.2.1.0...
Installed parallel-3.2.1.0
Configuring cpsa-2.0.5...
Building cpsa-2.0.5...
Failed to install cpsa-2.0.5
Build log ( /home/builder/.cabal/logs/cpsa-2.0.5.log ):
cabal: Entering directory '/tmp/cabal-tmp-5277/cpsa-2.0.5'
Configuring cpsa-2.0.5...
Building cpsa-2.0.5...
Preprocessing executable 'cpsa' for cpsa-2.0.5...
[ 1 of 18] Compiling Paths_cpsa       ( dist/build/autogen/Paths_cpsa.hs, dist/build/cpsa/cpsa-tmp/Paths_cpsa.o )
[ 2 of 18] Compiling CPSA.Lib.Utilities ( src/CPSA/Lib/Utilities.hs, dist/build/cpsa/cpsa-tmp/CPSA/Lib/Utilities.o )
[ 3 of 18] Compiling CPSA.Lib.SExpr   ( src/CPSA/Lib/SExpr.hs, dist/build/cpsa/cpsa-tmp/CPSA/Lib/SExpr.o )
[ 4 of 18] Compiling CPSA.Lib.Pretty  ( src/CPSA/Lib/Pretty.hs, dist/build/cpsa/cpsa-tmp/CPSA/Lib/Pretty.o )
[ 5 of 18] Compiling CPSA.Lib.Printer ( src/CPSA/Lib/Printer.hs, dist/build/cpsa/cpsa-tmp/CPSA/Lib/Printer.o )
[ 6 of 18] Compiling CPSA.Lib.Entry   ( src/CPSA/Lib/Entry.hs, dist/build/cpsa/cpsa-tmp/CPSA/Lib/Entry.o )

src/CPSA/Lib/Entry.hs:68:12: error:
    Variable not in scope:
      try
        :: IO (Maybe (SExpr Pos))
           -> IO (Either IOError (Maybe (SExpr Pos)))
cabal: Leaving directory '/tmp/cabal-tmp-5277/cpsa-2.0.5'
cabal: Error: some packages failed to install:
cpsa-2.0.5 failed during the building phase. The exception was:
ExitFailure 1