Hi @jeevananthank,
can you provide more of the stacktrace as this doesn’t show where it starts … at least the whole first gorotuine stack trace (there will be new lines between them and goroutine <number> ... as the next line). Although the more you can give us the better 
- you can put them in a gist as to not make some huge post ( I also think discord will not like it 
).
Do you get the panic early on ? maybe your options are wrong and we haven’t handled it … well 
. If you can post them or at least the stages.
Can you post k6 version output just in case ? although I don’t think it will be the same panic as this one.
Also anything else that you think relevant will be a good idea. And to be honest this is probably issue worthy