Trigger a Travis-CI rebuild without pushing a commit?

Question

If you have write access to the repo: On the build’s detail screen, there is a button ↻ Restart Build. Also under “More Options” there is a trigger build menu item.

Note: Browser extensions like Ghostery may prevent the restart button from being displayed. Try disabling the extension or white-listing Travis CI.

Note2: If .travis.yml configuration has changed in the upstream, clicking rebuild button will run travis with old configuration. To apply upstream changes for travis configuration one has to add commit to PR or to close / reopen it.
If you’ve sent a pull request: You can close the PR then open it again. This will trigger a new build.

Restart Build:

Restart Build Screen Shot

Trigger Build:

Trigger Build Screen Shot