build failed due to SVN checkout crash.
please see trace below:

no revision recorded for svn://subversion/<real file name wad removed> in the previous build
FATAL: null
java.lang.NullPointerException
at hudson.scm.SubversionChangeLogBuilder.run(SubversionChangeLogBuilder.java:136)
at hudson.scm.SubversionSCM.calcChangeLog(SubversionSCM.java:725)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:860)
at hudson.scm.SCM.checkout(SCM.java:485)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1284)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:610)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:532)
at hudson.model.Run.execute(Run.java:1741)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:381)