Resolving dependencies...
cabal: Could not resolve dependencies:
trying: dclabel-0.9.0.0 (user goal)
trying: base-4.7.0.1/installed-e4b... (dependency of dclabel-0.9.0.0)
next goal: cereal (dependency of dclabel-0.9.0.0)
rejecting: cereal-0.4.1.1, 0.4.1.0, 0.4.0.1, 0.4.0.0 (conflict: dclabel =>
cereal>=0.3.3 && <0.4)
trying: cereal-0.3.5.2
rejecting: cereal-0.3.5.2:+split-base (conflict:
base==4.7.0.1/installed-e4b..., cereal-0.3.5.2:split-base => base>=4 && <4.7)
rejecting: cereal-0.3.5.2:-split-base (conflict:
base==4.7.0.1/installed-e4b..., cereal-0.3.5.2:split-base => base<3.0)
Dependency tree exhaustively searched.