Resolving dependencies...
cabal: Could not resolve dependencies:
trying: base-4.9.0.0/installed-4.9... (dependency of email-validator-0.0.3)
trying: transformers-0.5.2.0/installed-0.5... (dependency of mtl-2.2.1)
next goal: tasty (dependency of email-validator-0.0.3)
rejecting: tasty-0.11.0.4, tasty-0.11.0.3, tasty-0.11.0.2, tasty-0.11.0.1,
tasty-0.11, tasty-0.10.1.2, tasty-0.10.1.1, tasty-0.10.1, tasty-0.10.0.4,
tasty-0.10.0.3, tasty-0.10.0.2, tasty-0.10.0.1, tasty-0.10, tasty-0.9.0.1
(conflict: email-validator => tasty==0.8.*)
trying: tasty-0.8.1.3
next goal: optparse-applicative (dependency of tasty-0.8.1.3)
rejecting: optparse-applicative-0.13.0.0, optparse-applicative-0.12.1.0,
optparse-applicative-0.12.0.0, optparse-applicative-0.11.0.2,
optparse-applicative-0.11.0.1, optparse-applicative-0.11.0,
optparse-applicative-0.10.0 (conflict: tasty => optparse-applicative>=0.6 &&
<0.10)
rejecting: optparse-applicative-0.9.1.1, optparse-applicative-0.9.1,
optparse-applicative-0.9.0 (conflict: base==4.9.0.0/installed-4.9...,
optparse-applicative => base>=4 && <4.8)
rejecting: optparse-applicative-0.8.1, optparse-applicative-0.8.0.1,
optparse-applicative-0.8.0, optparse-applicative-0.7.0.2,
optparse-applicative-0.7.0.1, optparse-applicative-0.7.0,
optparse-applicative-0.6.0 (conflict: transformers==0.5.2.0/installed-0.5...,
optparse-applicative => transformers>=0.2 && <0.4)
rejecting: optparse-applicative-0.5.2.1, optparse-applicative-0.5.2,
optparse-applicative-0.5.1, optparse-applicative-0.5.0,
optparse-applicative-0.4.3, optparse-applicative-0.4.2,
optparse-applicative-0.4.1, optparse-applicative-0.4.0,
optparse-applicative-0.3.2, optparse-applicative-0.3.1,
optparse-applicative-0.3.0, optparse-applicative-0.2.0,
optparse-applicative-0.1.1, optparse-applicative-0.1.0,
optparse-applicative-0.0.1 (conflict: tasty => optparse-applicative>=0.6 &&
<0.10)
Dependency tree exhaustively searched.