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     monads-tf-0.1.0.3
Starting     transformers-compat-0.6.5
Starting     primitive-0.7.0.1
Building     monads-tf-0.1.0.3
Building     transformers-compat-0.6.5
Building     primitive-0.7.0.1
Completed    transformers-compat-0.6.5
Starting     mmorph-1.1.3
Completed    monads-tf-0.1.0.3
Building     mmorph-1.1.3
Completed    mmorph-1.1.3
Starting     tardis-0.4.1.0
Building     tardis-0.4.1.0
Completed    tardis-0.4.1.0
Completed    primitive-0.7.0.1
Starting     vector-0.12.1.2
Building     vector-0.12.1.2
Completed    vector-0.12.1.2
Downloading  x86-64bit-0.4.6
Downloaded   x86-64bit-0.4.6
Starting     x86-64bit-0.4.6
Building     x86-64bit-0.4.6
Completed    x86-64bit-0.4.6