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     ghc-tcplugins-extra-0.3
Building     ghc-tcplugins-extra-0.3
Completed    ghc-tcplugins-extra-0.3
Starting     ghc-typelits-natnormalise-0.6.2
Building     ghc-typelits-natnormalise-0.6.2
Completed    ghc-typelits-natnormalise-0.6.2
Starting     ghc-typelits-knownnat-0.6
Building     ghc-typelits-knownnat-0.6
Completed    ghc-typelits-knownnat-0.6
Starting     modular-0.1.0.8
Building     modular-0.1.0.8
Completed    modular-0.1.0.8