Use proper environment name for docker username
MODIFY
travis/travis-script.bash
travis/travis-script.bash
@@ -6,6 +6,6 @@ VERSION=$(git rev-parse --short HEAD)
docker build -t jupyter/repo2docker:${VERSION} .
if [[ "$TRAVIS_PULL_REQUEST" == "false" ]]; then
- docker login -u ${DOCKER_USERNAME} -p "${DOCKER_PASSWORD}"
+ docker login -u ${DOCKER_LOGIN} -p "${DOCKER_PASSWORD}"
docker push jupyter/rep2docker:${VERSION}
fi

Use proper environment name for docker username