Log runner failures to console

[sriv]

Is your feature request related to a problem? Please describe. Gauge runners can crash sometimes due to various reasons. Often the runners log the reason (ex. if it fails to parse steps). Gauge does not halt upon receiving fatal log entry.

Describe the solution you'd like Gauge should halt when there's a fatal error and log the reasons.

Describe alternatives you've considered None.

Additional context Since Gauge does not log the failure cause and halt, it results in sending further messages to a dead runner, causing the transport is closing errors thrown by grpc.