Resolving dependencies... Starting Win32-2.13.3.0 Building Win32-2.13.3.0 Failed to install Win32-2.13.3.0 Build log ( /home/builder/.cabal/logs/ghc-8.10.2/Win32-2.13.3.0-EoWOcg4t3G3Ij3jdviT9D.log ): cabal: Entering directory '/tmp/cabal-tmp-9332/Win32-2.13.3.0' Configuring Win32-2.13.3.0... Building Win32-2.13.3.0... Warning: No documentation was generated as this package does not contain a library. Perhaps you want to use the --executables, --tests, --benchmarks or --foreign-libraries flags. cabal: No executables and no library found. Nothing to do. cabal: Leaving directory '/tmp/cabal-tmp-9332/Win32-2.13.3.0' cabal: Error: some packages failed to install: Win32-2.13.3.0-EoWOcg4t3G3Ij3jdviT9D failed during the final install step. The exception was: ExitFailure 1