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     extractable-singleton-0.0.1
Starting     base-orphans-0.8.1
Starting     hashable-1.3.0.0
Starting     transformers-compat-0.6.5
Building     extractable-singleton-0.0.1
Building     hashable-1.3.0.0
Building     base-orphans-0.8.1
Building     transformers-compat-0.6.5
Completed    extractable-singleton-0.0.1
Completed    base-orphans-0.8.1
Completed    transformers-compat-0.6.5
Starting     transformers-base-0.4.5.2
Completed    hashable-1.3.0.0
Starting     async-2.2.2
Starting     unordered-containers-0.2.10.0
Building     transformers-base-0.4.5.2
Building     async-2.2.2
Building     unordered-containers-0.2.10.0
Completed    transformers-base-0.4.5.2
Starting     monad-control-aligned-0.0.1.1
Building     monad-control-aligned-0.0.1.1
Completed    async-2.2.2
Starting     chan-0.0.4.1
Building     chan-0.0.4.1
Completed    monad-control-aligned-0.0.1.1
Completed    chan-0.0.4.1
Completed    unordered-containers-0.2.10.0
Downloading  tmapmvar-0.0.4
Downloaded   tmapmvar-0.0.4
Starting     tmapmvar-0.0.4
Building     tmapmvar-0.0.4
Completed    tmapmvar-0.0.4
Downloading  threaded-0.0.0
Downloaded   threaded-0.0.0
Starting     threaded-0.0.0
Building     threaded-0.0.0
Completed    threaded-0.0.0