Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: yst (user goal)
rejecting: yst-0.5.1.1, yst-0.5.1, yst-0.5.0.4, yst-0.5.0.3, yst-0.5.0.2,
yst-0.5.0.1, yst-0.5, yst-0.4.1.1, yst-0.4.1, yst-0.4.0.1, yst-0.4,
yst-0.3.1.2 (constraint from user target requires ==0.3.1.1)
trying: yst-0.3.1.1
trying: mtl-2.2.1 (dependency of HDBC-sqlite3-2.3.3.1)
next goal: pandoc (dependency of yst-0.3.1.1)
rejecting: pandoc-1.19.1, pandoc-1.19, pandoc-1.18, pandoc-1.17.2,
pandoc-1.17.1, pandoc-1.17.0.3, pandoc-1.17.0.2, pandoc-1.17.0.1, pandoc-1.17,
pandoc-1.16.0.2, pandoc-1.16.0.1, pandoc-1.16, pandoc-1.15.2.1, pandoc-1.15.2,
pandoc-1.15.1.1, pandoc-1.15.1, pandoc-1.15.0.6, pandoc-1.15.0.5,
pandoc-1.15.0.4, pandoc-1.15.0.3, pandoc-1.15.0.2, pandoc-1.14.1,
pandoc-1.13.2.1, pandoc-1.13.2, pandoc-1.13.1, pandoc-1.13.0.1, pandoc-1.13,
pandoc-1.12.4.2, pandoc-1.12.4, pandoc-1.12.3.3, pandoc-1.12.3.2,
pandoc-1.12.3.1, pandoc-1.12.3, pandoc-1.12.2.1, pandoc-1.12.2, pandoc-1.12.1,
pandoc-1.12.0.2, pandoc-1.12.0.1, pandoc-1.12 (conflict: yst => pandoc>=1.10
&& <1.12)
rejecting: pandoc-1.11.1, pandoc-1.11, pandoc-1.10.1, pandoc-1.10.0.5,
pandoc-1.10.0.4, pandoc-1.10.0.3, pandoc-1.10.0.2, pandoc-1.10.0.1,
pandoc-1.10 (conflict: mtl==2.2.1, pandoc => mtl>=1.1 && <2.2)
rejecting: pandoc-1.9.4.5, pandoc-1.9.4.4, pandoc-1.9.4.3, pandoc-1.9.4.2,
pandoc-1.9.4.1, pandoc-1.9.4, pandoc-1.9.3, pandoc-1.9.2, pandoc-1.9.1.2,
pandoc-1.9.1.1, pandoc-1.9.1, pandoc-1.9.0.5, pandoc-1.9.0.4, pandoc-1.9.0.3,
pandoc-1.9.0.2, pandoc-1.9, pandoc-1.8.2.1, pandoc-1.8.2, pandoc-1.8.1.2,
pandoc-1.8.1.1, pandoc-1.8.1, pandoc-1.8.0.3, pandoc-1.8.0.2, pandoc-1.8.0.1,
pandoc-1.8, pandoc-1.6.0.1, pandoc-1.6, pandoc-1.5.1.1, pandoc-1.5.1,
pandoc-1.5.0.1, pandoc-1.5, pandoc-1.4, pandoc-1.3, pandoc-1.2.1, pandoc-1.2,
pandoc-1.1, pandoc-1.0.0.1, pandoc-1.0, pandoc-0.46, pandoc-0.45, pandoc-0.44,
pandoc-0.43, pandoc-0.42, pandoc-0.41, pandoc-0.4, pandoc-1.15.0.1,
pandoc-1.15, pandoc-1.14.0.4, pandoc-1.14.0.3, pandoc-1.14.0.2,
pandoc-1.14.0.1, pandoc-1.14 (conflict: yst => pandoc>=1.10 && <1.12)
Dependency tree exhaustively searched.