Warning: The install command is a part of the legacy v1 style of cabal usage. Please switch to using either the new project style and the new-install command or the legacy v1-install alias as new-style projects will become the default in the next version of cabal-install. Please file a bug if you cannot replicate a working v1- use case with the new-style commands. For more information, see: https://wiki.haskell.org/Cabal/NewBuild Resolving dependencies... Starting haskell-lexer-1.0.2 Starting sop-core-0.4.0.0 Building haskell-lexer-1.0.2 Building sop-core-0.4.0.0 Completed sop-core-0.4.0.0 Starting generics-sop-0.4.0.1 Building generics-sop-0.4.0.1 Completed haskell-lexer-1.0.2 Starting pretty-show-1.9.5 Building pretty-show-1.9.5 Completed pretty-show-1.9.5 Completed generics-sop-0.4.0.1 Downloading pretty-sop-0.2.0.3 Downloaded pretty-sop-0.2.0.3 Starting pretty-sop-0.2.0.3 Building pretty-sop-0.2.0.3 Completed pretty-sop-0.2.0.3