Gclient runhooks step fails in official.desktop.continuous - Stable builders ( Win, Mac and Linux)

Link to the builder
=====================
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win64%20stable/builds/144

Link to the log file
====================
https://uberchromegw.corp.google.com/i/official.desktop.continuous/builders/win64%20stable/builds/144/steps/gclient%20runhooks/logs/stdio

Error Log
=========
Caught ResumableDownloadException (Transfer failed after 23 retries. Final exception: HttpError accessing <https://www.googleapis.com/download/storage/v1/b/chromium-luci/o/d37a2f34eff58e1fb04038bd52381001479d4aa1?generation=1484527253137000&alt=media>: response: <{'status': '503', 'content-length': '0', 'expires': 'Fri, 07 Jul 2017 00:58:46 GMT', 'server': 'UploadServer', 'cache-control': 'private, max-age=0', 'date': 'Fri, 07 Jul 2017 00:58:46 GMT', 'alt-svc': 'quic=":443"; ma=2592000; v="39,38,37,36,35"', 'content-type': 'text/html; charset=UTF-8', 'x-guploader-uploadid': 'AEnB2UodXk3ScI9cCagNw1zPo3WJ4C3zyp0mClLf_E-hZpYA5Mo2sGQGffAwSkXnzpiatwRSQZhuWYNnAlOyEFdI_Frj2dpqKg'}>, content <>) for download of src/tools/luci-go/mac64/isolate.
ResumableDownloadException: Transfer failed after 23 retries. Final exception: HttpError accessing <https://www.googleapis.com/download/storage/v1/b/chromium-luci/o/d37a2f34eff58e1fb04038bd52381001479d4aa1?generation=1484527253137000&alt=media>: response: <{'status': '503', 'content-length': '0', 'expires': 'Fri, 07 Jul 2017 00:58:46 GMT', 'server': 'UploadServer', 'cache-control': 'private, max-age=0', 'date': 'Fri, 07 Jul 2017 00:58:46 GMT', 'alt-svc': 'quic=":443"; ma=2592000; v="39,38,37,36,35"', 'content-type': 'text/html; charset=UTF-8', 'x-guploader-uploadid': 'AEnB2UodXk3ScI9cCagNw1zPo3WJ4C3zyp0mClLf_E-hZpYA5Mo2sGQGffAwSkXnzpiatwRSQZhuWYNnAlOyEFdI_Frj2dpqKg'}>, content <>

Downloading 1 files took 796.736601 second(s)
Error: Command 'download_from_google_storage --no_resume --platform=darwin --no_auth --bucket chromium-luci -d src/tools/luci-go/mac64' returned non-zero exit status 1 in /b/c/b/mac64_stable
Hook 'download_from_google_storage --no_resume --platform=darwin --no_auth --bucket chromium-luci -d src/tools/luci-go/mac64' took 796.83 secs
step returned non-zero exit code: 2
@@@STEP_FAILURE@@@

Looks like an infra failure, looping to sheriff as well as to infra trooper.