I am struggling to replicate this issue. A log above the await is not the same as a log below. Also the snippet can’t really be just pasted and work (e.g. there are no imports, logger is referenced in a workflow that is undefined, etc). This project tutorial (code here) is like yours in that it makes an HTTP call. Can you confirm it works? Can you maybe alter that to show your error or provide a full standalone runnable application (including all code to run instead of snippets)?
apologies for the missing code.
I tried the sample you shared above and its works perfectly fine. I then morphed it to do what i want i.e. all the code pasted above and that also works good … 
The worker runs and i don’t see any crash or closing down of the worker process.
I did spent some time analyzing and comparing my old code, it looks the same but still doesn’t work… Guess I’ll keep it aside for now.