java.lang.NullPointerException
	at hudson.model.Fingerprint.addWithoutSaving(Fingerprint.java:1035)
	at hudson.model.Fingerprint.add(Fingerprint.java:1030)
	at hudson.model.Fingerprint.addFor(Fingerprint.java:1023)
	at com.cloudbees.plugins.credentials.CredentialsProvider.trackAll(CredentialsProvider.java:1457)
	at com.cloudbees.plugins.credentials.CredentialsProvider.track(CredentialsProvider.java:1421)
	at hudson.plugins.git.GitSCM.createClient(GitSCM.java:818)
	at hudson.plugins.git.GitSCM.createClient(GitSCM.java:786)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1154)
	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:113)
	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:85)
	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:75)
	at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1$1.call(AbstractSynchronousNonBlockingStepExecution.java:47)
	at hudson.security.ACL.impersonate(ACL.java:290)
	at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1.run(AbstractSynchronousNonBlockingStepExecution.java:44)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Finished: FAILURE