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     exceptions-0.10.4
Starting     colour-2.3.5
Starting     heredoc-0.2.0.0
Starting     transformers-compat-0.6.5
Building     exceptions-0.10.4
Building     heredoc-0.2.0.0
Building     colour-2.3.5
Building     transformers-compat-0.6.5
Completed    heredoc-0.2.0.0
Completed    transformers-compat-0.6.5
Completed    exceptions-0.10.4
Starting     safe-exceptions-0.1.7.0
Building     safe-exceptions-0.1.7.0
Completed    colour-2.3.5
Starting     ansi-terminal-0.10.2
Completed    safe-exceptions-0.1.7.0
Building     ansi-terminal-0.10.2
Completed    ansi-terminal-0.10.2
Starting     ansi-wl-pprint-0.6.9
Building     ansi-wl-pprint-0.6.9
Completed    ansi-wl-pprint-0.6.9
Starting     optparse-applicative-0.15.1.0
Building     optparse-applicative-0.15.1.0
Completed    optparse-applicative-0.15.1.0
Downloading  hsinstall-2.6
Downloaded   hsinstall-2.6
Starting     hsinstall-2.6
Building     hsinstall-2.6
Completed    hsinstall-2.6