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 dlist-0.8.0.5 Starting posix-paths-0.2.1.6 Building dlist-0.8.0.5 Building posix-paths-0.2.1.6 Completed posix-paths-0.2.1.6 Starting semigroups-0.18.5 Completed dlist-0.8.0.5 Starting list-tries-0.6.6 Building semigroups-0.18.5 Building list-tries-0.6.6 Completed semigroups-0.18.5 Completed list-tries-0.6.6 Starting filesystem-abstractions-0 Building filesystem-abstractions-0 Completed filesystem-abstractions-0