Add debug logging about events
Add debug logging about events

Signed-off-by: Alexander Morozov <4efb7da3e38416208b41d8021a942884d8a9435c@docker.com>

kunalkushwaha/containerd,rajasec/containerd,crosbymichael/containerd,estesp/containerd,containerd/containerd,yuexiao-wang/containerd,crosbymichael/containerd,amitkris/containerd,kunalkushwaha/containerd,mikebrow/containerd,Wolphin-project/containerd,thaJeztah/containerd,xiekeyang/containerd,docker/containerd,amitkris/containerd,vdemeester/containerd,thaJeztah/containerd,lichao-mobanche/containerd,containerd/containerd,hqhq/containerd,AkihiroSuda/containerd,dmcgowan/containerd,vdemeester/containerd,miaoyq/containerd,dmcgowan/containerd,estesp/containerd,mikebrow/containerd,miaoyq/containerd,chanezon/containerd