[silc] Startup error: exceptions.AttributeError: 'SilcBot' object has no attribute 'failure'

[Stefano Rivera]

Occasionally seen on startup.

2009-07-22 18:43:23+0200 [-] Unhandled Error
 Traceback (most recent call last):
   File "/usr/lib/python2.5/site-packages/twisted/application/app.py", line 445, in startReactor
     self.config, oldstdout, oldstderr, self.profiler, reactor)
   File "/usr/lib/python2.5/site-packages/twisted/application/app.py", line 348, in runReactorWithLogging
     reactor.run()
   File "/usr/lib/python2.5/site-packages/twisted/internet/base.py", line 1128, in run
     self.mainLoop()
   File "/usr/lib/python2.5/site-packages/twisted/internet/base.py", line 1137, in mainLoop
     self.runUntilCurrent()
 --- <exception caught here> ---
   File "/usr/lib/python2.5/site-packages/twisted/internet/base.py", line 757, in runUntilCurrent
     call.func(*call.args, **call.kw)
   File "/usr/lib/python2.5/site-packages/twisted/internet/task.py", line 115, in __call__
     d.addCallback(cb)
   File "/usr/lib/python2.5/site-packages/twisted/internet/defer.py", line 195, in addCallback
     callbackKeywords=kw)
 exceptions.AttributeError: 'SilcBot' object has no attribute 'failure'