All Travis CI test builds currently fail with the error message E: Version '1.9.1-0~trusty' for 'docker-engine' was not found
We use the old version of docker-engine because it caches intermediate build artefacts, massively speeding up the build process, whereas newer versions of Docker to not do so (at least, not without the new/pending `--cache-from directive)
All Travis CI test builds currently fail with the error message
E: Version '1.9.1-0~trusty' for 'docker-engine' was not found
We use the old version of docker-engine because it caches intermediate build artefacts, massively speeding up the build process, whereas newer versions of Docker to not do so (at least, not without the new/pending
`--cache-from
directive)Travis customisation: https://github.com/ic-labs/django-icekit/blob/b3e7965/.travis.yml#L8
Example Travis build failure: https://travis-ci.org/ic-labs/django-icekit/builds/245583198