Resolving dependencies...
cabal: Could not resolve dependencies:
trying: zoom-0.1.0.1 (dependency of acme-everything-2015.4.15.1)
next goal: ghc (dependency of zoom-0.1.0.1)
rejecting: ghc-8.0.1.20161018/installed-8.0... (conflict: zoom => ghc>=7.0.3
&& <7.2)
Dependency tree exhaustively searched.