First, thanks for aarch64 support in travis-ci !
I wanted to try it out for the manylinux project but was troubled by builds failing after 10 seconds with no logs. I then opened a draft PR on the project to check if that was different on travis-ci.org. Indeed, a log showed up allowing me to debug the job.
This lead me to discover that
docker build must be run with
sudo in this environment (shouldn’t be the case ?)