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     erf-2.0.0.0
Starting     semigroups-0.18.5
Starting     random-1.1
Starting     primitive-0.6.4.0
Building     erf-2.0.0.0
Building     semigroups-0.18.5
Building     random-1.1
Building     primitive-0.6.4.0
Completed    semigroups-0.18.5
Starting     utility-ht-0.0.14
Completed    erf-2.0.0.0
Building     utility-ht-0.0.14
Completed    random-1.1
Completed    utility-ht-0.0.14
Starting     storable-record-0.0.4
Starting     tfp-1.0.1.1
Building     storable-record-0.0.4
Building     tfp-1.0.1.1
Completed    storable-record-0.0.4
Completed    primitive-0.6.4.0
Starting     tf-random-0.5
Building     tf-random-0.5
Completed    tfp-1.0.1.1
Completed    tf-random-0.5
Starting     QuickCheck-2.12.6.1
Building     QuickCheck-2.12.6.1
Completed    QuickCheck-2.12.6.1
Starting     non-empty-0.3.0.1
Building     non-empty-0.3.0.1
Completed    non-empty-0.3.0.1
Downloading  fixed-length-0.2.1
Downloaded   fixed-length-0.2.1
Starting     fixed-length-0.2.1
Building     fixed-length-0.2.1
Completed    fixed-length-0.2.1