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     data-default-class-0.1.2.0
Starting     integer-logarithms-1.0.3
Starting     mtl-compat-0.2.2
Starting     hashable-1.3.0.0
Building     data-default-class-0.1.2.0
Building     hashable-1.3.0.0
Building     mtl-compat-0.2.2
Building     integer-logarithms-1.0.3
Completed    mtl-compat-0.2.2
Starting     old-locale-1.0.0.7
Building     old-locale-1.0.0.7
Completed    data-default-class-0.1.2.0
Starting     primitive-0.7.0.0
Completed    integer-logarithms-1.0.3
Starting     semigroups-0.19.1
Building     primitive-0.7.0.0
Building     semigroups-0.19.1
Completed    old-locale-1.0.0.7
Completed    hashable-1.3.0.0
Completed    semigroups-0.19.1
Completed    primitive-0.7.0.0
Starting     scientific-0.3.6.2
Building     scientific-0.3.6.2
Completed    scientific-0.3.6.2
Starting     attoparsec-0.13.2.3
Building     attoparsec-0.13.2.3
Completed    attoparsec-0.13.2.3
Downloading  cron-0.6.2
Downloaded   cron-0.6.2
Starting     cron-0.6.2
Building     cron-0.6.2
Completed    cron-0.6.2