Example data load files unexpectedly

[datamgmt]

Having got a clean build if I do:
docker exec -it imply bin/post-index-task -f quickstart/wikipedia-index.json
I get
Beginning indexing data for wikipedia Waiting up to 119s for indexing service [http://localhost:8090/] to become available. [Got: <urlopen error [Errno 99] Cannot assign requested address> ] Task started: index_wikipedia_2019-11-17T13:45:04.818Z Task log: http://localhost:8090/druid/indexer/v1/task/index_wikipedia_2019-11-17T13%3A45%3A04.818Z/log Task status: http://localhost:8090/druid/indexer/v1/task/index_wikipedia_2019-11-17T13%3A45%3A04.818Z/status Task index_wikipedia_2019-11-17T13:45:04.818Z still running... Task index_wikipedia_2019-11-17T13:45:04.818Z still running... Task index_wikipedia_2019-11-17T13:45:04.818Z still running... Task index_wikipedia_2019-11-17T13:45:04.818Z still running... Task index_wikipedia_2019-11-17T13:45:04.818Z still running... Task index_wikipedia_2019-11-17T13:45:04.818Z still running... Task finished with status: FAILED