builds failing due to "429 too many requests" errors

[D3N14L]

Actual behavior
Travis CI builds are failing due to "429 Too many requests" errors when downloading the /docker-credential-gcr_linux_amd64-1.5.0.tar.gz:

Step 4/28 : ADD https://github.com/GoogleCloudPlatform/docker-credential-gcr/releases/download/v1.5.0/docker-credential-gcr_linux_amd64-1.5.0.tar.gz /usr/local/bin/

ADD failed: failed to GET https://github.com/GoogleCloudPlatform/docker-credential-gcr/releases/download/v1.5.0/docker-credential-gcr_linux_amd64-1.5.0.tar.gz with status 429 too many requests:

Expected behavior
Builds should not fail due to rate limits ...

To Reproduce
Steps to reproduce the behavior:
Depending on the current number of requests the error may or may not occur, when triggering a build.

Additional Information
https://travis-ci.org/github/GoogleContainerTools/kaniko/jobs/683347600
https://travis-ci.org/github/GoogleContainerTools/kaniko/jobs/683320321

Triage Notes for the Maintainers

Description	Yes/No
Please check if this a new feature you are proposing
Please check if the build works in docker but not in kaniko
Please check if this error is seen when you use --cache flag
Please check if your dockerfile is a multistage dockerfile

[tejal29]

Fixed by #1230

[tejal29]

oops i thought this was the bug corresponding to the PR you put out there.

[tejal29]

hmm looks like we hit the Github API request limit.