Resolving dependencies...
cabal: Could not resolve dependencies:
trying: darcs-benchmark-0.1.9 (user goal)
trying: base-4.7.0.1/installed-e4b... (dependency of darcs-benchmark-0.1.9)
next goal: HTTP (dependency of darcs-benchmark-0.1.9)
rejecting: HTTP-4000.2.19, 4000.2.18, 4000.2.17, 4000.2.16.1, 4000.2.16,
4000.2.15, 4000.2.14, 4000.2.13, 4000.2.12, 4000.2.11, 4000.2.10, 4000.2.9,
4000.2.8, 4000.2.7, 4000.2.6, 4000.2.5, 4000.2.4, 4000.2.3, 4000.2.2,
4000.2.1, 4000.2.0, 4000.1.2, 4000.1.1, 4000.1.0 (conflict: darcs-benchmark =>
HTTP>=4000.0.8 && <4000.1)
rejecting: HTTP-4000.0.10 (conflict: base==4.7.0.1/installed-e4b..., HTTP =>
base>=2 && <4.4)
rejecting: HTTP-4000.0.9, 4000.0.8 (conflict: base==4.7.0.1/installed-e4b...,
HTTP => base>=2 && <4)
rejecting: HTTP-4000.0.7, 4000.0.6, 4000.0.5, 4000.0.4, 4000.0.3, 4000.0.2,
4000.0.1, 4000.0.0, 3001.1.5, 3001.1.4, 3001.1.3, 3001.0.4, 3001.0.3,
3001.0.2, 3001.0.1, 3001.0.0, 3000.0.0 (conflict: darcs-benchmark =>
HTTP>=4000.0.8 && <4000.1)
Dependency tree exhaustively searched.