[tests][cannon] Added some debug print statements
[tests][cannon] Added some debug print statements

victorisildur/Graphite,mit-carbon/Graphite,fhijaz/Graphite,victorisildur/Graphite,8l/Graphite,victorisildur/Graphite,8l/Graphite,fhijaz/Graphite,fhijaz/Graphite,nkawahara/Graphite,nkawahara/Graphite,8l/Graphite,nkawahara/Graphite,mit-carbon/Graphite,8l/Graphite,fhijaz/Graphite,victorisildur/Graphite,nkawahara/Graphite,mit-carbon/Graphite,mit-carbon/Graphite