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     hsemail-2.1.0
Starting     random-1.1
Starting     semigroups-0.19
Starting     utility-ht-0.0.14
Building     semigroups-0.19
Building     random-1.1
Building     hsemail-2.1.0
Building     utility-ht-0.0.14
Completed    semigroups-0.19
Starting     explicit-exception-0.1.10
Building     explicit-exception-0.1.10
Completed    random-1.1
Starting     splitmix-0.0.2
Building     splitmix-0.0.2
Completed    utility-ht-0.0.14
Completed    splitmix-0.0.2
Starting     QuickCheck-2.13.1
Building     QuickCheck-2.13.1
Completed    hsemail-2.1.0
Completed    explicit-exception-0.1.10
Starting     spreadsheet-0.1.3.8
Building     spreadsheet-0.1.3.8
Completed    spreadsheet-0.1.3.8
Completed    QuickCheck-2.13.1
Starting     non-empty-0.3.2
Building     non-empty-0.3.2
Completed    non-empty-0.3.2
Starting     mbox-utility-0.0.3
Building     mbox-utility-0.0.3
Completed    mbox-utility-0.0.3