try serial tests to see if it makes the pipeline happier
try serial tests to see if it makes the pipeline happier

squeedee/concourse,Amit-PivotalLabs/concourse,jbayer/concourse,Amit-PivotalLabs/concourse,concourse/concourse,cjcjameson/concourse,concourse/concourse,Amit-PivotalLabs/concourse,sedouard/concourse,CloudCredo/concourse,cjcjameson/concourse,longnguyen11288/concourse,longnguyen11288/concourse,holgero/concourse,concourse/concourse,concourse/concourse,sedouard/concourse,sedouard/concourse,beni55/concourse,CloudCredo/concourse,cjcjameson/concourse,concourse/concourse,zachgersh/concourse,CloudCredo/concourse,squeedee/concourse,zachgersh/concourse,holgero/concourse,jbayer/concourse,holgero/concourse,beni55/concourse,longnguyen11288/concourse,zachgersh/concourse,squeedee/concourse,beni55/concourse,jbayer/concourse