Travis CI spurious failures

[David Nadlinger via Digitalmars-d]

On Sunday, 4 September 2016 at 17:37:28 UTC, David Nadlinger 
wrote:
> In this case, it's seems to be a race condition between Travis 
> trying to check out the branch to test, and GitHub actually 
> serving it up (or you removing it again).

Oh, wait, this is on a branch in the main dlang repo, as created 
by the GitHub online editor. We might want to restrict CI runs to 
the main branches by adding something like this to .travis.yml:

---
branches:
   only:
   - master
   - stable
---

Then again, people shouldn't be creating branches on the main 
repo anyway (although last time I checked, this was 
unavoidable when using the "revert" button).

  — David