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... Downloading complex-generic-0.1.1.1 Starting binary-search-1.0.0.3 Starting integer-roots-1.0 Downloaded complex-generic-0.1.1.1 Starting complex-generic-0.1.1.1 Building binary-search-1.0.0.3 Building integer-roots-1.0 Building complex-generic-0.1.1.1 Completed binary-search-1.0.0.3 Completed integer-roots-1.0 Completed complex-generic-0.1.1.1 Downloading constructible-0.1.1 Downloaded constructible-0.1.1 Starting constructible-0.1.1 Building constructible-0.1.1 Completed constructible-0.1.1