See https://dev.azure.com/dnceng/internal/_build/results?buildId=2459834&view=logs&j=0412dcf5-478c-51bc-8fd3-1e1653027e8b&t=8fbfd639-c99a-52bf-214f-b6ce4811bf9d

Seems unusual that it's uploading ref packs. I don't see why it should be creating or uploading ref packs.