added failed key predicate
added failed key predicate

aJchemist/lein-figwheel,aJchemist/lein-figwheel,bhauman/lein-figwheel,verma/lein-figwheel,verma/lein-figwheel,bhauman/lein-figwheel,aJchemist/lein-figwheel,tonsky/lein-figwheel,bhauman/lein-figwheel,tonsky/lein-figwheel,tonsky/lein-figwheel