getmoto/moto#1941 - fix for it

.travis.yml

@@ -3,18 +3,22 @@ python:
   - "3.8"
 services:
   - docker
+env:
+  global:
+    - PYTHON_DOCKER_TAG=3.8-buster
+    - TEST_SERVER_MODE=true
+    - TRAVIS_CI_MODE=true
+    - AWS_SECRET_ACCESS_KEY=server_secret
+    - AWS_ACCESS_KEY_ID=server_key
+before_install:
+- export BOTO_CONFIG=/dev/null
 install:
   - pip install --upgrade setuptools wheel boto3 aioboto3 moto pytest requests pytest-asyncio flask moto[server]
-  - |
-    python setup.py sdist bdist_wheel
-    PYTHON_DOCKER_TAG=3.8-buster
-    TEST_SERVER_MODE=true
-    docker run --rm -t --name motoserver -e TEST_SERVER_MODE=true -e TRAVIS_CI_MODE=true -e AWS_SECRET_ACCESS_KEY=server_secret -e AWS_ACCESS_KEY_ID=server_key -v `pwd`:/moto -p 5000:5000 -v /var/run/docker.sock:/var/run/docker.sock python:${PYTHON_DOCKER_TAG} /moto/travis_moto_server.sh &
+  - python setup.py sdist bdist_wheel
+  - docker run --rm -t --name motoserver -e TEST_SERVER_MODE=true -e TRAVIS_CI_MODE=true -e AWS_SECRET_ACCESS_KEY=server_secret -e AWS_ACCESS_KEY_ID=server_key -v `pwd`:/moto -p 5000:5000 -v /var/run/docker.sock:/var/run/docker.sock python:${PYTHON_DOCKER_TAG} /moto/travis_moto_server.sh &
 
 script:
-  - |
-    TRAVIS_CI_MODE=true
-    pytest tests
+  - pytest tests
 deploy:
   provider: pypi
   user: __token__