Change: fail in same step as the reason for failing is in CI result

This makes it easier for people to understand what went wrong

Jenkinsfile

@@ -34,8 +34,7 @@ def generateCI(display_name, image_name) {
 
                 docker.image("${image_name}").pull()
                 docker.image("${image_name}").withRun("--volumes-from ${hostname} --workdir " + pwd()) { c ->
-                    sh "docker logs --follow ${c.id}"
-                    sh "exit `docker wait ${c.id}`"
+                    sh "docker logs --follow ${c.id}; exit `docker wait ${c.id}`"
                 }
             }