Rakefile in assertion-0.2.1 vs Rakefile in assertion-0.2.2

@@ -23,7 +23,7 @@
   system "bundle exec rspec spec"
 end
 
 desc "Runs mutation metric for testing"
 task :mutant do
-  system "mutant -r ./spec/spec_helper --use rspec 'Assertion*' --fail-fast"
+  system "mutant -r ./spec/spec_helper --use rspec 'Assertion*'"
 end