Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: yst (user goal)
rejecting: yst-0.5.0.4, 0.5.0.3, 0.5.0.2, 0.5.0.1, 0.5, 0.4.1.1, 0.4.1,
0.4.0.1, 0.4, 0.3.1.2, 0.3.1.1, 0.3.1 (global constraint requires ==0.3.0.1)
trying: yst-0.3.0.1
trying: base-4.8.1.0/installed-4f7... (dependency of yst-0.3.0.1)
trying: pandoc-1.15.2.1 (dependency of yst-0.3.0.1)
trying: network-2.6.2.1 (dependency of pandoc-1.15.2.1)
trying: unix-2.7.1.0/installed-643... (dependency of network-2.6.2.1)
next goal: HStringTemplate (dependency of yst-0.3.0.1)
rejecting: HStringTemplate-0.8.3, 0.8.2, 0.8.1, 0.8, 0.7.3, 0.7.1, 0.7.0
(conflict: yst => HStringTemplate>=0.6.1 && <0.6.9 || >0.6.11 && <0.7)
trying: HStringTemplate-0.6.12
trying: HStringTemplate-0.6.12:+quasi-quotation
rejecting: HStringTemplate-0.6.12:+smaller-base (conflict: unix =>
time==1.5.0.1/installed-c20..., HStringTemplate-0.6.12:smaller-base =>
time<1.5)
rejecting: HStringTemplate-0.6.12:-smaller-base (conflict:
base==4.8.1.0/installed-4f7..., HStringTemplate-0.6.12:smaller-base => base<4)
Backjump limit reached (change with --max-backjumps).