Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: github (user goal)
rejecting: github-0.13.2, 0.13.1, 0.13, 0.12, 0.11.1, 0.11.0, 0.10.0, 0.9,
0.8, 0.7.4, 0.7.3, 0.7.2, 0.7.1, 0.7.0, 0.6.0, 0.5.0, 0.4.1, 0.4.0, 0.3.0,
0.2.1 (global constraint requires ==0.2.0)
trying: github-0.2.0
trying: base-4.8.1.0/installed-4f7... (dependency of github-0.2.0)
next goal: unordered-containers (dependency of github-0.2.0)
rejecting: unordered-containers-0.2.5.1, 0.2.5.0, 0.2.4.0, 0.2.3.3, 0.2.3.2,
0.2.3.1, 0.2.3.0, 0.2.2.1, 0.2.2.0, 0.2.1.0, 0.2.0.1, 0.2.0.0, 0.1.4.6,
0.1.4.5, 0.1.4.4 (conflict: github => unordered-containers==0.1.4.3)
rejecting: unordered-containers-0.1.4.3 (conflict:
base==4.8.1.0/installed-4f7..., unordered-containers => base>=4 && <4.5)
rejecting: unordered-containers-0.1.4.2, 0.1.4.1, 0.1.4.0, 0.1.3.0, 0.1.2.0,
0.1.1.0, 0.1.0.0 (conflict: github => unordered-containers==0.1.4.3)
Dependency tree exhaustively searched.