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     base-orphans-0.8.1
Starting     random-1.1
Starting     semigroups-0.19
Starting     primitive-0.7.0.0
Building     random-1.1
Building     semigroups-0.19
Building     base-orphans-0.8.1
Building     primitive-0.7.0.0
Completed    semigroups-0.19
Starting     split-0.2.3.3
Completed    base-orphans-0.8.1
Starting     storable-complex-0.2.3.0
Building     split-0.2.3.3
Building     storable-complex-0.2.3.0
Completed    storable-complex-0.2.3.0
Completed    random-1.1
Completed    split-0.2.3.3
Completed    primitive-0.7.0.0
Starting     vector-0.12.0.3
Building     vector-0.12.0.3
Completed    vector-0.12.0.3
Downloading  hmatrix-0.20.0.0
Downloaded   hmatrix-0.20.0.0
Starting     hmatrix-0.20.0.0
Building     hmatrix-0.20.0.0
Completed    hmatrix-0.20.0.0