print log if get vm stats failed
print log if get vm stats failed

Signed-off-by: Wang Xu <0e9dfdf30d71e7ded2bba4a3dc006039c4b00f3d@gmail.com>

jinfenw/runv,hyperhq/runv,hyperhq/runv,bergwolf/runv,gao-feng/runv,feiskyer/runv,laijs/runv,hyperhq/runv,bergwolf/runv,feiskyer/runv,gao-feng/runv,gnawux/runv,bergwolf/runv,jinfenw/runv,jinfenw/runv,gao-feng/runv,laijs/runv,laijs/runv,gnawux/runv,gnawux/runv