If you encounter an error similar to the following when running
`cabal install cabal-install` or 'cabal install Cabal':
/tmp/cabal-tmp-7012/Cabal-1.22.6.0/Distribution/Version.hs:135:10:
Duplicate instance declarations:
instance Binary Version
-- Defined at
/tmp/cabal-tmp-7012/Cabal-1.22.6.0/Distribution/Version.hs:135:10
instance [safe] Binary Version
-- Defined in ‘binary-0.8.0.0:Data.Binary.Class’
try running 'cabal install -j1 Cabal' to work around the 'binary-0.8'
compatibility issue.