[boost] Github CI testing with appveyor and travis

I can not seem to get appveyor or travis CI to test the repositories of which I am the maintainer, PP, VMD, and TTI, any more. Normally I would not care much about the CI testing, but the fact that they seem to have stopped wortking completely, or maybe just stopped sending me back results, bothers me. All three have appropriate .yml files. Have these CI services stopped working ? How do I integrate them again with these Boost libraries ?