I've been wondering how best to gather timing numbers. I've adapted a script from @jntrnr that can run and scrape timing information across all of crates.io, but I feel a bit nervous about building arbitrary crap from crates.io on my computer -- seems like a security risk to do so, given that it may involve executing arbitrary code.
I can use an EC2 instance, but I'm not sure whether the numbers that would result are reliable in any way. Seems unlikely. The same might apply to a VM -- though I'd expect the figures from a VM to be relatively ok, just a higher margin of error.
Perhaps a new user on my laptop would be a good compromise.