Issue reproduction attempt: Version 0.3.9 returns no roles

docker-compose.yml

version: "3"

services:
  "aws-adfs":
    build:
      context: .

Dockerfile

FROM debian:stretch

RUN apt-get update && \
    apt-get install -y curl python && \
    curl -L https://bootstrap.pypa.io/get-pip.py | python && \
    pip install aws-adfs

To bring it up, use: docker-compose run --rm aws-adfs
Cleanup: docker-compose down