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     call-stack-0.2.0
Starting     clock-0.8
Starting     colour-2.3.5
Starting     primitive-0.7.0.0
Building     call-stack-0.2.0
Building     colour-2.3.5
Building     clock-0.8
Building     primitive-0.7.0.0
Completed    call-stack-0.2.0
Starting     random-1.1
Building     random-1.1
Completed    clock-0.8
Starting     setenv-0.1.1.3
Building     setenv-0.1.1.3
Completed    setenv-0.1.1.3
Starting     HUnit-1.6.0.0
Building     HUnit-1.6.0.0
Completed    random-1.1
Starting     splitmix-0.0.3
Building     splitmix-0.0.3
Completed    colour-2.3.5
Starting     ansi-terminal-0.10.2
Completed    HUnit-1.6.0.0
Starting     hspec-expectations-0.8.2
Building     ansi-terminal-0.10.2
Building     hspec-expectations-0.8.2
Completed    splitmix-0.0.3
Starting     QuickCheck-2.13.2
Building     QuickCheck-2.13.2
Completed    hspec-expectations-0.8.2
Completed    ansi-terminal-0.10.2
Completed    primitive-0.7.0.0
Starting     tf-random-0.5
Building     tf-random-0.5
Completed    tf-random-0.5
Completed    QuickCheck-2.13.2
Starting     quickcheck-io-0.2.0
Building     quickcheck-io-0.2.0
Completed    quickcheck-io-0.2.0
Starting     hspec-core-2.7.1
Building     hspec-core-2.7.1
Completed    hspec-core-2.7.1
Downloading  hspec-need-env-0.1.0.4
Downloaded   hspec-need-env-0.1.0.4
Starting     hspec-need-env-0.1.0.4
Building     hspec-need-env-0.1.0.4
Completed    hspec-need-env-0.1.0.4