Found the following significant warnings:

  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
  Warning: 'texts.corpus' is deprecated.
Deprecated functions may be defunct as soon as of the next release of
R.
See ?Deprecated.
Examples with CPU time > 2.5 times elapsed time
                     user system elapsed ratio
peakdates           1.191  0.063   0.460 2.726
sento_measures      0.996  0.043   0.406 2.559
diff.sento_measures 1.008  0.070   0.431 2.501