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 microlens-0.4.10 Starting hashable-1.2.7.0 Starting th-abstraction-0.2.11.0 Starting primitive-0.6.4.0 Building microlens-0.4.10 Building hashable-1.2.7.0 Building th-abstraction-0.2.11.0 Building primitive-0.6.4.0 Completed microlens-0.4.10 Starting transformers-compat-0.6.4 Completed hashable-1.2.7.0 Starting microlens-ghc-0.4.10 Building transformers-compat-0.6.4 Building microlens-ghc-0.4.10 Completed th-abstraction-0.2.11.0 Starting unordered-containers-0.2.10.0 Building unordered-containers-0.2.10.0 Completed microlens-ghc-0.4.10 Starting microlens-th-0.4.2.3 Completed transformers-compat-0.6.4 Starting microlens-mtl-0.1.11.1 Building microlens-th-0.4.2.3 Building microlens-mtl-0.1.11.1 Completed microlens-mtl-0.1.11.1 Completed microlens-th-0.4.2.3 Completed primitive-0.6.4.0 Starting vector-0.12.0.2 Building vector-0.12.0.2 Completed unordered-containers-0.2.10.0 Completed vector-0.12.0.2 Starting microlens-platform-0.3.11 Building microlens-platform-0.3.11 Completed microlens-platform-0.3.11 Downloading feather-0.1.0.0 Downloaded feather-0.1.0.0 Starting feather-0.1.0.0 Building feather-0.1.0.0 Completed feather-0.1.0.0