Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: maid (user goal)
rejecting: maid-2014.10.14, 2014.8.31, 2013.9.14, 2013.9.13, 2012.1.19,
2011.10.13, 2011.10.12, 2011.6.21, 2011.6.20, 2010.9.29, 2010.9.19,
2010.9.9.1, 2010.9.9 (global constraint requires ==2010.4.24)
trying: maid-2010.4.24
trying: base-4.8.1.0/installed-4f7... (dependency of maid-2010.4.24)
trying: hack-handler-hyena-2010.3.15 (dependency of maid-2010.4.24)
next goal: hyena (dependency of hack-handler-hyena-2010.3.15)
rejecting: hyena-0.1.0.1 (conflict: containers==0.5.6.2/installed-2de...,
hyena => containers>=0.3 && <0.4)
trying: hyena-0.1
next goal: mtl (dependency of hyena-0.1)
rejecting: mtl-2.2.1, 2.2.0.1, 2.2, 2.1.3.1, 2.1.2, 2.1.1, 2.1, 2.0.1.1,
2.0.1.0, 2.0.0.0 (conflict: hyena => mtl>=1 && <1.2)
rejecting: mtl-1.1.1.1, 1.1.1.0 (conflict: base==4.8.1.0/installed-4f7..., mtl
=> base<4.6)
rejecting: mtl-1.1.0.2, 1.1.0.1, 1.1.0.0, 1.0 (conflict:
base==4.8.1.0/installed-4f7..., mtl => base<4.3)
Dependency tree exhaustively searched.