W0311 02:30:20.218961       1 deprecated.go:66] 
==== Removed Flag Warning ======================

logtostderr is removed in the k8s upstream and has no effect any more.

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I0311 02:30:20.219038       1 kube-rbac-proxy.go:532] Reading config file: /etc/kubernetes/crio-metrics-proxy.cfg
E0311 02:30:20.219854       1 run.go:72] "command failed" err="failed to load kubeconfig: unable to build rest config based on provided path to kubeconfig file: invalid configuration: [unable to read client-cert /var/lib/kubelet/pki/kubelet-client-current.pem for default-auth due to open /var/lib/kubelet/pki/kubelet-client-current.pem: no such file or directory, unable to read client-key /var/lib/kubelet/pki/kubelet-client-current.pem for default-auth due to open /var/lib/kubelet/pki/kubelet-client-current.pem: no such file or directory]"