I tried something in travis-pip-update branch but without success.
Sadly i do not get an verbose output at this point, in result i will wait some days to be sure that the connection between travis-ci and dockerhub isn't broken or something has changed.
Currently Travis-CI i broken in caja master branch and probably everywhere in our repos. See https://app.travis-ci.com/github/mate-desktop/caja/jobs/616398552#L258
The command "./docker-build --name ${DISTRO} --config .build.yml --install" failed and exited with 1 during .
At this part docker-build from mate-devs repo starts to download the docker image. See in a successful build https://app.travis-ci.com/github/mate-desktop/caja/jobs/615673703#L208I tried something in travis-pip-update branch but without success. Sadly i do not get an verbose output at this point, in result i will wait some days to be sure that the connection between travis-ci and dockerhub isn't broken or something has changed.