Suppressing a senseless stack trace.

h.n.AbstractNodeMonitorDescriptor$Record#<init>: Previous Free Disk Space monitoring activity still in progress. Interrupting
h.n.AbstractNodeMonitorDescriptor$Record#run: Unexpected node monitoring termination: Free Disk Space
java.lang.InterruptedException
	at java.lang.Object.wait(Native Method)
	at hudson.remoting.Request$1.get(Request.java:272)
	at hudson.remoting.Request$1.get(Request.java:210)
	at hudson.remoting.FutureAdapter.get(FutureAdapter.java:59)
	at hudson.node_monitors.AbstractAsyncNodeMonitorDescriptor.monitor(AbstractAsyncNodeMonitorDescriptor.java:97)
	at hudson.node_monitors.AbstractNodeMonitorDescriptor$Record.run(AbstractNodeMonitorDescriptor.java:282)