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
Building     colour-2.3.5
Completed    colour-2.3.5
Starting     ansi-terminal-0.10.1
Building     ansi-terminal-0.10.1
Completed    ansi-terminal-0.10.1
Downloading  Monadoro-0.2.1.10
Downloaded   Monadoro-0.2.1.10
Starting     Monadoro-0.2.1.10
Building     Monadoro-0.2.1.10
Completed    Monadoro-0.2.1.10