tool.drcachesim.TLB-threads failing non-deterministically on Travis

It terminates early but at 90s it may be a timeout (though there's no timeout message).

https://api.travis-ci.org/jobs/174603662/log.txt?deansi=true

211: 
211:      Finished computing current solution distance in mode 0.
211:      Mode changed to 0.
211: 
211:      Started iteration 10 of the computation...
216/248 Test #211: code_api|tool.drcachesim.TLB-threads .............................***Failed  Required regular expression not found.Regex=[^