Resolving dependencies... Configuring vacuum-1.0.0.2... Building vacuum-1.0.0.2... Failed to install vacuum-1.0.0.2 Build log ( /home/builder/.cabal/logs/vacuum-1.0.0.2.log ): cabal: Entering directory '/tmp/cabal-tmp-20889/vacuum-1.0.0.2' Configuring vacuum-1.0.0.2... Building vacuum-1.0.0.2... Preprocessing library vacuum-1.0.0.2... [1 of 8] Compiling GHC.Vacuum.Util ( src/GHC/Vacuum/Util.hs, dist/build/GHC/Vacuum/Util.o ) [2 of 8] Compiling GHC.Vacuum.Q ( src/GHC/Vacuum/Q.hs, dist/build/GHC/Vacuum/Q.o ) [3 of 8] Compiling GHC.Vacuum.Pretty.Dot ( src/GHC/Vacuum/Pretty/Dot.hs, dist/build/GHC/Vacuum/Pretty/Dot.o ) [4 of 8] Compiling GHC.Vacuum.Internal ( src/GHC/Vacuum/Internal.hs, dist/build/GHC/Vacuum/Internal.o ) src/GHC/Vacuum/Internal.hs:186:10: error: • No instance for (Applicative (S s)) arising from the superclasses of an instance declaration • In the instance declaration for ‘Monad (S s)’ cabal: Leaving directory '/tmp/cabal-tmp-20889/vacuum-1.0.0.2' cabal: Error: some packages failed to install: isevaluated-0.3.0.1 depends on vacuum-1.0.0.2 which failed to install. vacuum-1.0.0.2 failed during the building phase. The exception was: ExitFailure 1