net.masterthought.cucumber.ValidationException: File '/var/lib/jenkins/jobs/test_Tails_ISO_stable/builds/4644/cucumber-html-reports/.cache/cucumber.json' is not a valid Cucumber report! No content to map due to end-of-input
 at [Source: (InputStreamReader); line: 1, column: 0]
	at net.masterthought.cucumber.ReportParser.parseForFeature(ReportParser.java:102)
	at net.masterthought.cucumber.ReportParser.parseJsonFiles(ReportParser.java:69)
	at net.masterthought.cucumber.ReportBuilder.generateReports(ReportBuilder.java:97)
	at net.masterthought.jenkins.CucumberReportPublisher.generateReport(CucumberReportPublisher.java:563)
	at net.masterthought.jenkins.CucumberReportPublisher.perform(CucumberReportPublisher.java:434)
	at jenkins.tasks.SimpleBuildStep.perform(SimpleBuildStep.java:123)
	at hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:80)
	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:818)
	at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:767)
	at hudson.model.Build$BuildExecution.post2(Build.java:179)
	at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:711)
	at hudson.model.Run.execute(Run.java:1918)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44)
	at hudson.model.ResourceController.execute(ResourceController.java:101)
	at hudson.model.Executor.run(Executor.java:442)