Fix nil pointer derefence on failure to connect to containerd
Fix nil pointer derefence on failure to connect to containerd

Signed-off-by: Simão Reis <c01845138a7c435e99fee2d7407c300a9ded3619@gmail.com>

mikebrow/docker,yosifkit/docker,vdemeester/docker,flavio/docker,jlhawn/docker,gnailuy/docker,ibuildthecloud/docker,estesp/docker,pradipd/moby,nalind/docker,jvanz/docker,jthelin/docker,konstruktoid/docker-upstream,yongtang/docker,vdemeester/docker,trebonian/docker,moby/moby,rancher/docker,konstruktoid/docker-upstream,jthelin/docker,jimjag/docker,kolyshkin/moby,kojiromike/docker,moul/docker,rremer/moby,mahak/docker,jameszhan/docker,justincormack/docker,Ramzec/docker,trebonian/docker,vdemeester/docker,jimjag/docker,yosifkit/docker,x1022as/docker,scotttlin/docker,nalind/docker,flavio/docker,bearstech/moby,Mokolea/docker,djs55/docker,nawawi/docker,yongtang/docker,unclejack/docker,konstruktoid/docker-upstream,estesp/docker,ibuildthecloud/docker,cpuguy83/docker,mahak/docker,konstruktoid/docker-1,gnailuy/docker,moby/moby,mahak/docker,gnailuy/docker,rremer/moby,paralin/docker,rancher/docker,mahak/docker,Mokolea/docker,yosifkit/docker,AkihiroSuda/docker,x1022as/docker,justincormack/docker,kojiromike/docker,jlhawn/docker,paralin/docker,moby/moby,paralin/docker,docker/docker,dims/docker,jlhawn/docker,AkihiroSuda/docker,unclejack/docker,pradipd/moby,nawawi/docker,flavio/docker,jameszhan/docker,Mokolea/docker,Mokolea/docker,gnailuy/docker,jimjag/docker,nalind/docker,tmp6154/docker,djs55/docker,paralin/docker,konstruktoid/docker-1,konstruktoid/docker-upstream,Ramzec/docker,scotttlin/docker,flavio/docker,ibuildthecloud/docker,tmp6154/docker,ibuildthecloud/docker,jwhonce/docker,bearstech/moby,docker/docker,yosifkit/docker,kolyshkin/moby,nawawi/docker,SvenDowideit/docker,Ramzec/docker,djs55/docker,AkihiroSuda/docker,jvanz/docker,thaJeztah/docker,crosbymichael/docker,moul/docker,trebonian/docker,SvenDowideit/docker,rancher/docker,bearstech/moby,SvenDowideit/docker,mikebrow/docker,AkihiroSuda/docker,jwhonce/docker,trebonian/docker,jwhonce/docker,scotttlin/docker,cpuguy83/docker,crosbymichael/docker,unclejack/docker,tmp6154/docker,dims/docker,jameszhan/docker,moby/moby,moul/docker,cpuguy83/docker,cpuguy83/docker,x1022as/docker,thaJeztah/docker,crosbymichael/docker,moul/docker,nalind/docker,docker/docker,jvanz/docker,pradipd/moby,jimjag/docker,dims/docker,Ramzec/docker,konstruktoid/docker-1,nawawi/docker,justincormack/docker,thaJeztah/docker,kojiromike/docker,thaJeztah/docker,rremer/moby,estesp/docker,ibuildthecloud/docker,mikebrow/docker,kolyshkin/moby,yongtang/docker,bearstech/moby