Trigger a Travis-CI rebuild without pushing a commit?

Question

Using Travis-CI, is it possible to trigger a rebuild without pushing a new commit to GitHub?

Use case: A build fails due to an externality. The source is actually co

Answer 1

Here's what worked for me to trigger a rebuild on a PR that Dependabot had opened, but failed due to errors in .travis.yml:

1. Close the PR
2. Wait for Dependabot to comment ("OK, I won't notify you again about this release, but will get in touch when a new version is available."). It will remove its branch.
3. Restore the branch Dependabot removed (something like dependabot/cargo/tempfile-3.0.4).
4. Open the PR again