I0521 01:21:27.944909       1 serving.go:386] Generated self-signed cert in-memory
E0521 01:21:27.945757       1 run.go:72] "command failed" err="failed to create listener: failed to listen on 0.0.0.0:10259: listen tcp 0.0.0.0:10259: bind: address already in use"