Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: bumper (user goal)
rejecting: bumper-0.6.0.3, 0.6.0.2, 0.6.0.1, 0.6, 0.5.1.2, 0.5.1.1, 0.5.1,
0.5.0.3, 0.5.0.2 (global constraint requires ==0.5.0.1)
trying: bumper-0.5.0.1
trying: regex-compat-0.95.1 (dependency of bumper-0.5.0.1)
trying: regex-base-0.93.2 (dependency of regex-compat-0.95.1)
trying: mtl-2.2.1 (dependency of regex-base-0.93.2)
next goal: fclabels (dependency of bumper-0.5.0.1)
rejecting: fclabels-2.0.2.2, 2.0.2.1, 2.0.2, 2.0.1.1, 2.0.1, 2.0.0.5, 2.0.0.4,
2.0.0.3, 2.0.0.2, 2.0.0.1, 2.0 (conflict: bumper => fclabels>=1.0 && <1.2)
rejecting: fclabels-1.1.7.1, 1.1.7, 1.1.6, 1.1.5, 1.1.4.3, 1.1.4.2, 1.1.4.1,
1.1.4, 1.1.3, 1.1.2, 1.1.1.1, 1.1.1.0, 1.1.0.2, 1.1.0.1, 1.1.0, 1.0.5, 1.0.4,
1.0.3, 1.0.2, 1.0.1, 1.0 (conflict: mtl==2.2.1, fclabels => mtl>=1.0 && <2.2)
rejecting: fclabels-0.11.2, 0.11.1.1, 0.11.1, 0.11.0, 0.9.1, 0.9.0, 0.4.2.1,
0.4.2, 0.4.1, 0.4.0, 0.3.0, 0.2.0, 0.1.2, 0.1 (conflict: bumper =>
fclabels>=1.0 && <1.2)
Dependency tree exhaustively searched.