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     colour-2.3.4
Starting     integer-logarithms-1.0.2.2
Starting     parser-combinators-1.0.1
Starting     hashable-1.2.7.0
Building     colour-2.3.4
Building     integer-logarithms-1.0.2.2
Building     parser-combinators-1.0.1
Building     hashable-1.2.7.0
Completed    integer-logarithms-1.0.2.2
Starting     primitive-0.6.4.0
Building     primitive-0.6.4.0
Completed    parser-combinators-1.0.1
Starting     random-1.1
Building     random-1.1
Completed    hashable-1.2.7.0
Starting     safe-0.3.17
Building     safe-0.3.17
Completed    random-1.1
Starting     syb-0.7
Completed    colour-2.3.4
Starting     unordered-containers-0.2.10.0
Building     syb-0.7
Building     unordered-containers-0.2.10.0
Completed    safe-0.3.17
Starting     case-insensitive-1.2.0.11
Building     case-insensitive-1.2.0.11
Completed    case-insensitive-1.2.0.11
Starting     splitmix-0.0.2
Completed    syb-0.7
Starting     ansi-terminal-0.9
Building     splitmix-0.0.2
Building     ansi-terminal-0.9
Completed    splitmix-0.0.2
Starting     json-0.9.3
Building     json-0.9.3
Completed    ansi-terminal-0.9
Starting     QuickCheck-2.13.1
Completed    primitive-0.6.4.0
Starting     scientific-0.3.6.2
Building     QuickCheck-2.13.1
Building     scientific-0.3.6.2
Completed    unordered-containers-0.2.10.0
Completed    json-0.9.3
Completed    scientific-0.3.6.2
Starting     megaparsec-7.0.4
Building     megaparsec-7.0.4
Completed    megaparsec-7.0.4
Completed    QuickCheck-2.13.1
Starting     dequeue-0.1.12
Building     dequeue-0.1.12
Completed    dequeue-0.1.12
Downloading  elsa-0.2.1.2
Downloaded   elsa-0.2.1.2
Starting     elsa-0.2.1.2
Building     elsa-0.2.1.2
Completed    elsa-0.2.1.2