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     bytestring-builder-0.10.8.2.0
Starting     hashable-1.3.0.0
Starting     integer-logarithms-1.0.3
Starting     network-3.1.1.0
Building     bytestring-builder-0.10.8.2.0
Building     integer-logarithms-1.0.3
Building     hashable-1.3.0.0
Completed    bytestring-builder-0.10.8.2.0
Starting     primitive-0.7.0.0
Building     primitive-0.7.0.0
Completed    integer-logarithms-1.0.3
Starting     zlib-0.6.2.1
Building     zlib-0.6.2.1
Building     network-3.1.1.0
Completed    hashable-1.3.0.0
Starting     async-2.2.2
Building     async-2.2.2
Completed    async-2.2.2
Completed    zlib-0.6.2.1
Starting     zlib-bindings-0.1.1.5
Building     zlib-bindings-0.1.1.5
Completed    zlib-bindings-0.1.1.5
Completed    network-3.1.1.0
Completed    primitive-0.7.0.0
Starting     scientific-0.3.6.2
Starting     vector-0.12.0.3
Building     scientific-0.3.6.2
Building     vector-0.12.0.3
Completed    scientific-0.3.6.2
Starting     attoparsec-0.13.2.3
Building     attoparsec-0.13.2.3
Completed    attoparsec-0.13.2.3
Completed    vector-0.12.0.3
Starting     io-streams-1.5.1.0
Building     io-streams-1.5.1.0
Completed    io-streams-1.5.1.0
Downloading  heartbeat-streams-0.1.0.2
Downloaded   heartbeat-streams-0.1.0.2
Starting     heartbeat-streams-0.1.0.2
Building     heartbeat-streams-0.1.0.2
Completed    heartbeat-streams-0.1.0.2