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: When a user runs processCcd from the command line for ISR, if {{outputrepo}} was previously a destination for another processCcd run, an opaque butler error which sneakily originates in daf_persistence will result ("No locations for get").    I have only tried this for DECam images; it's possible this may be a special case affecting only images ingested with obs_decam. I don't generally have a problem with the requirement for an empty destination directory for output from processCcd, but the Traceback should give the user a clue as to the source of the problem.     For example, for the case where {{repo}}, {{calibrepo}}, and {{outputrepo}} are directories with ingested images, ingested calibration products, and past output from processCcd, respectively:  {noformat}  processCcd.py repo --id visit=410878 ccdnum=54 --output outputrepo --calib calibrepo -C $OBS_DECAM_DIR/config/processCcdCpIsr.py --config calibrate.doAstrometry=False calibrate.doPhotoCal=False  {noformat}  will return an error that appears to indicate a problem with accessing the bias:  {noformat}  processCcd INFO: Processing {u'hdu': 55, 'object': 'Blind15A_39', 'visit': 410878, u'filter': 'r', 'ccdnum': 54, u'date': '2015-02-17'}  processCcd.isr INFO: Performing ISR on sensor {u'hdu': 55, 'object': 'Blind15A_39', 'visit': 410878, u'filter': 'r', 'ccdnum': 54, u'date': '2015-02-17'}  makeWcs WARN: Stripping PVi_j keys from projection RA---TPV/DEC--TPV  processCcd FATAL: Failed on dataId={u'hdu': 55, 'object': 'Blind15A_39', 'visit': 410878, u'filter': 'r', 'ccdnum': 54, u'date': '2015-02-17'}: Unable to retrieve cpBias for {u'hdu': 55, 'object': 'Blind15A_39', 'visit': 410878, u'filter': 'r', 'ccdnum': 54, u'date': '2015-02-17'}: No locations for get: datasetType:cpBias dataId:DataId(initialdata={u'filter': 'r', u'hdu': 55, 'ccdnum': 54, u'date': '2015-02-17', 'object': 'Blind15A_39', 'visit': 410878}, tag=set([]))  Traceback (most recent call last):    File "/ssd/lsstsw/stack_20170409/Linux64/pipe_base/13.0-3-g7fa07e0/python/lsst/pipe/base/cmdLineTask.py", line 347, in __call__      result = task.run(dataRef, **kwargs)    File "/ssd/lsstsw/stack_20170409/Linux64/pipe_base/13.0-3-g7fa07e0/python/lsst/pipe/base/timer.py", line 121, in wrapper      res = func(self, *args, **keyArgs)    File "/home/<USER>pipe_tasks/python/lsst/pipe/tasks/processCcd.py", line 183, in run      exposure = self.isr.runDataRef(sensorRef).exposure    File "/ssd/lsstsw/stack_20170409/Linux64/pipe_base/13.0-3-g7fa07e0/python/lsst/pipe/base/timer.py", line 121, in wrapper      res = func(self, *args, **keyArgs)    File "/ssd/lsstsw/stack_20170409/Linux64/ip_isr/13.0-9-g733b75c+2/python/lsst/ip/isr/isrTask.py", line 484, in runDataRef      isrData = self.readIsrData(sensorRef, ccdExposure)    File "/home/<USER>obs_decam/python/lsst/obs/decam/decamCpIsr.py", line 77, in readIsrData      biasExposure = self.getIsrExposure(dataRef, "cpBias") if self.config.doBias else None    File "/ssd/lsstsw/stack_20170409/Linux64/ip_isr/13.0-9-g733b75c+2/python/lsst/ip/isr/isrTask.py", line 586, in getIsrExposure      raise RuntimeError("Unable to retrieve %s for %s: %s" % (datasetType, dataRef.dataId, exc1))  RuntimeError: Unable to retrieve cpBias for {u'hdu': 55, 'object': 'Blind15A_39', 'visit': 410878, u'filter': 'r', 'ccdnum': 54, u'date': '2015-02-17'}: No locations for get: datasetType:cpBias dataId:DataId(initialdata={u'filter': 'r', u'hdu': 55, 'ccdnum': 54, u'date': '2015-02-17', 'object': 'Blind15A_39', 'visit': 410878}, tag=set([]))  {noformat}  but the same command runs successfully when {{outputrepo}} is an empty directory.
Answer: 91851.0