reqwest version 0.9.18 is not supported.

[yaanhyy]

Here is the log:
2019-06-15 21:01:10 INFO [rs_es:200] rs_es Doing post_body_op on /blocks_db/block/_search
Err(HttpError(Error(Executor(EnterError { reason: "attempted to run an executor while another executor is already running" }), "http://172.18.11.62:9200/blocks_db/block/_search")))

[antoine-de]

I had the same problem, it's related to seanmonstar/reqwest#541

I don't think it's directly related to rs-es (since it's not async yet), but maybe you run it in an async context ? (I had the problem while running it with actix).

It's a very good case for having an async rs-es, but I don't really see a nice way to have either async and sync rs-es 😞