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 StateVar-1.1.1.1 Building StateVar-1.1.1.1 Completed StateVar-1.1.1.1 Starting contravariant-1.5 Building contravariant-1.5 Completed contravariant-1.5 Downloading lrucache-1.2.0.1 Downloaded lrucache-1.2.0.1 Starting lrucache-1.2.0.1 Building lrucache-1.2.0.1 Completed lrucache-1.2.0.1