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     cabal-doctest-1.0.6
Starting     base-orphans-0.8
Building     cabal-doctest-1.0.6
Building     base-orphans-0.8
Completed    base-orphans-0.8
Starting     tagged-0.8.6
Building     tagged-0.8.6
Completed    cabal-doctest-1.0.6
Completed    tagged-0.8.6
Starting     distributive-0.6
Building     distributive-0.6
Completed    distributive-0.6
Downloading  rank2classes-1.2
Downloaded   rank2classes-1.2
Starting     rank2classes-1.2
Building     rank2classes-1.2
Completed    rank2classes-1.2