archive_webkit_tests_results failing on 2 builders

Builders failed on: 
- WebKit Mac10.11 (dbg): 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11%20%28dbg%29
- WebKit Mac10.12: 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.12


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This started in https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.11%20%28dbg%29/builds/10268 and https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.12/builds/6598, respectively. Looks like the archive step is timing out?

Putting this bug into "Infra". I'm sure there's a more specific component, but it's not clear to me which might apply. :)