Only raise error if we're using a Docker discoverer.
Only raise error if we're using a Docker discoverer.

Nitro/sidecar,newrelic/sidecar,newrelic/sidecar,Nitro/sidecar,Nitro/sidecar,Nitro/sidecar,newrelic/sidecar,benoahriz/sidecar,benoahriz/sidecar,newrelic/sidecar,benoahriz/sidecar,benoahriz/sidecar