error downloading shfmt package (github hosted)

[shartse]

In one variant build, http://ops.jenkins.delphix.com/job/devops-gate/job/master/job/appliance-build-stage1/job/master/job/post-push/19761/console, I saw this step fail:

"Step 9/13 : RUN wget -nv -O /usr/local/bin/shfmt https://github.com/mvdan/sh/releases/download/v2.4.0/shfmt_v2.4.0_linux_amd64 && chmod +x /usr/local/bin/shfmt",

with:
2019-10-03 00:48:45 ERROR 503: Slow Down

The package does still seem to be present and the other pipelines succeeded so I assume this is a transient connectivity or downtime issue

[jwk404]

http://ops.jenkins.delphix.com/job/devops-gate/job/master/job/appliance-build/job/6.0/job/stage/job/post-push/88/console

The 4 failures in the job above are failures trying to wget the same url, with slightly different error codes (500 + 502). Manually trying to wget that url now works fine.