Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: eq (user goal)
rejecting: eq-4.0.4, eq-4.0.3, eq-4.0.2, eq-4.0.1, eq-4.0, eq-3.1.1, eq-3.1,
eq-3.0, eq-0.3.7.1, eq-0.3.7, eq-0.3.6, eq-0.3.5, eq-0.3.4.3 (constraint from
user target requires ==0.3.4.2)
trying: eq-0.3.4.2
trying: base-4.9.0.0/installed-4.9... (dependency of eq-0.3.4.2)
next goal: semigroupoids (dependency of eq-0.3.4.2)
rejecting: semigroupoids-5.1, semigroupoids-5.0.1, semigroupoids-5.0.0.4,
semigroupoids-5.0.0.3, semigroupoids-5.0.0.2, semigroupoids-5.0.0.1,
semigroupoids-5, semigroupoids-4.3, semigroupoids-4.2, semigroupoids-4.0.4,
semigroupoids-4.0.3, semigroupoids-4.0.2.1, semigroupoids-4.0.2,
semigroupoids-4.0.1, semigroupoids-4.0, semigroupoids-3.1,
semigroupoids-3.0.3, semigroupoids-3.0.2, semigroupoids-3.0.1,
semigroupoids-3.0.0.2, semigroupoids-3.0.0.1, semigroupoids-3.0,
semigroupoids-1.3.4, semigroupoids-1.3.3, semigroupoids-1.3.2.1,
semigroupoids-1.3.2, semigroupoids-1.3.1.2, semigroupoids-1.3.1.1,
semigroupoids-1.3.1 (conflict: eq => semigroupoids>=1.2.6.1 && <1.3.0)
rejecting: semigroupoids-1.3, semigroupoids-1.2.6.2, semigroupoids-1.2.6.1
(conflict: base==4.9.0.0/installed-4.9..., semigroupoids => base>=4 && <4.6)
rejecting: semigroupoids-1.2.6, semigroupoids-1.2.5, semigroupoids-1.2.4,
semigroupoids-1.2.2.4, semigroupoids-1.2.2.3, semigroupoids-1.2.2.2,
semigroupoids-1.2.2.1, semigroupoids-1.2.2, semigroupoids-1.2.1,
semigroupoids-1.2.0, semigroupoids-1.1.3, semigroupoids-1.1.2,
semigroupoids-1.1.1, semigroupoids-1.1.0, semigroupoids-1.0.0,
semigroupoids-4.5 (conflict: eq => semigroupoids>=1.2.6.1 && <1.3.0)
Dependency tree exhaustively searched.