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     colour-2.3.5
Starting     tagged-0.8.6
Starting     clock-0.8
Starting     hashable-1.3.0.0
Building     colour-2.3.5
Building     tagged-0.8.6
Building     hashable-1.3.0.0
Building     clock-0.8
Completed    clock-0.8
Starting     transformers-compat-0.6.5
Building     transformers-compat-0.6.5
Completed    tagged-0.8.6
Starting     unbounded-delays-0.1.1.0
Completed    hashable-1.3.0.0
Starting     wcwidth-0.0.2
Building     unbounded-delays-0.1.1.0
Building     wcwidth-0.0.2
Completed    unbounded-delays-0.1.1.0
Starting     async-2.2.2
Completed    wcwidth-0.0.2
Building     async-2.2.2
Completed    transformers-compat-0.6.5
Completed    colour-2.3.5
Starting     ansi-terminal-0.9.1
Building     ansi-terminal-0.9.1
Completed    async-2.2.2
Completed    ansi-terminal-0.9.1
Starting     ansi-wl-pprint-0.6.9
Building     ansi-wl-pprint-0.6.9
Completed    ansi-wl-pprint-0.6.9
Starting     optparse-applicative-0.14.3.0
Building     optparse-applicative-0.14.3.0
Completed    optparse-applicative-0.14.3.0
Downloading  tasty-1.2.3
Downloaded   tasty-1.2.3
Starting     tasty-1.2.3
Building     tasty-1.2.3
Completed    tasty-1.2.3