give resolution time in minutes for the given user story, only provide the number of minutes in the output without any other text

User story: "A fatal error (in this case, due to file permissions) should not cause an NPE to generated from the house keeping data structures.    {code:java}  Started by timer  [EnvInject] - Loading node environment variables.  Building remotely on jenkins-master (swarm) in workspace /home/jenkins-slave/workspace/sqre/infrastructure/jenkins-node-cleanup  found elcap-1  node: elcap-1, free space: 99GB. Idle: false  found elcap-2  node: elcap-2, free space: 116GB. Idle: true  found elcap-3  node: elcap-3, free space: 126GB. Idle: false  found jenkins-el6-1  node: jenkins-el6-1, free space: 372GB. Idle: false  found jenkins-el6-2  node: jenkins-el6-2, free space: 221GB. Idle: false  found jenkins-el7-1  node: jenkins-el7-1, free space: 952GB. Idle: false  found jenkins-el7-2  node: jenkins-el7-2, free space: 1049GB. Idle: false  found jenkins-el7-3  node: jenkins-el7-3, free space: 182GB. Idle: false  found jenkins-el7-4  node: jenkins-el7-4, free space: 27GB. Idle: true  Failed to delete /home/jenkins-slave/workspace: java.io.IOException: remote file operation failed: /home/jenkins-slave/workspace at hudson.remoting.Channel@5b7b0f4b:JNLP4-connect connection from ip-192-168-123-181.ec2.internal/192.168.123.181:35978: java.io.IOException: Unable to delete '/home/jenkins-slave/workspace/sqre/infrastructure/update-cmirror/local_mirror/linux-64/_license-1.1-py27_0.tar.bz2'. Tried 3 times (of a maximum of 3) waiting 0.1 sec between attempts.  found jenkins-master  node: jenkins-master, free space: 473GB. Idle: false  found lsst-dev  found sierra-1  node: sierra-1, free space: 98GB. Idle: false  found sierra-2  found sierra-3  node: sierra-3, free space: 101GB. Idle: false    ### SUMMARY    * failedNodes:  ERROR: Build step failed with exception  java.lang.NullPointerException: Cannot get property 'displayName' on null object   at org.codehaus.groovy.runtime.NullObject.getProperty(NullObject.java:60)   at org.codehaus.groovy.runtime.InvokerHelper.getProperty(InvokerHelper.java:174)   at org.codehaus.groovy.runtime.callsite.NullCallSite.getProperty(NullCallSite.java:47)   at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:296)   at Script1$_run_closure8$_closure10.doCall(Script1.groovy:218)   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)   at java.lang.reflect.Method.invoke(Method.java:498)   at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)   at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)   at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)   at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1027)   at groovy.lang.Closure.call(Closure.java:414)   at groovy.lang.Closure.call(Closure.java:430)   at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2030)   at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2015)   at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2056)   at org.codehaus.groovy.runtime.dgm$162.invoke(Unknown Source)   at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:274)   at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:56)   at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)   at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)   at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)   at Script1$_run_closure8.doCall(Script1.groovy:217)   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)   at java.lang.reflect.Method.invoke(Method.java:498)   at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)   at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)   at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)   at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1027)   at groovy.lang.Closure.call(Closure.java:414)   at groovy.lang.Closure.call(Closure.java:430)   at org.codehaus.groovy.runtime.DefaultGroovyMethods.callClosureForMapEntry(DefaultGroovyMethods.java:5228)   at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2107)   at org.codehaus.groovy.runtime.dgm$163.invoke(Unknown Source)   at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:274)   at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:56)   at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)   at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)   at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)   at Script1.run(Script1.groovy:214)   at groovy.lang.GroovyShell.evaluate(GroovyShell.java:585)   at groovy.lang.GroovyShell.evaluate(GroovyShell.java:623)   at groovy.lang.GroovyShell.evaluate(GroovyShell.java:594)   at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SecureGroovyScript.evaluate(SecureGroovyScript.java:170)   at hudson.plugins.groovy.SystemGroovy.run(SystemGroovy.java:95)   at hudson.plugins.groovy.SystemGroovy.perform(SystemGroovy.java:59)   at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)   at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:735)   at hudson.model.Build$BuildExecution.build(Build.java:206)   at hudson.model.Build$BuildExecution.doRun(Build.java:163)   at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:490)   at hudson.model.Run.execute(Run.java:1735)   at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)   at hudson.model.ResourceController.execute(ResourceController.java:97)   at hudson.model.Executor.run(Executor.java:405)  Build step 'Execute system Groovy script' marked build as failure  Finished: FAILURE  {code}  "
Answer: 4068.0