It looks like cloning the branch failed because Travis was not looking for it in my fork.
I think I know why. I accidentally pushed my branch to this repo at first, then deleted it because it belongs in my fork. I think Travis tried to run on that branch at some point and failed to clone because I was quick to delete it.
If you look, there is a Travis run for a push (failed) and another for a pr (passed). The pr run is pointing to the right place.
It looks like cloning the branch failed because Travis was not looking for it in my fork.
I think I know why. I accidentally pushed my branch to this repo at first, then deleted it because it belongs in my fork. I think Travis tried to run on that branch at some point and failed to clone because I was quick to delete it.
If you look, there is a Travis run for a push (failed) and another for a pr (passed). The pr run is pointing to the right place.