Sometime in the last year or two, Github added an interstitial page to Travis CI jobs running on pull requests.
You can still see the build result (green check or red x) on the commits/PR as before: https://github.com/acquia/blt/pull/4262
But when you click that and then “details” you are taken to an interstitial page on Github: https://github.com/acquia/blt/runs/1266540062
You have to then click through that page to arrive on the actual build on travis-ci.com: https://travis-ci.com/github/acquia/blt/builds/190569366
I find this interstitial page worse than useless, since it doesn’t contain any additional information and is slower to update than the native build page on travis-ci.com.
I don’t know if this is an issue for Github or Travis CI, but it would be really useful to go directly from the PR to the Travis CI build results as in the old days.