nightly import/get benchmarks are flaky

[dberenbaum]

[pmrowla]

Looks like there was an issue with aws last night where the default iterative remote wasn't reachable over https.

[pmrowla]

It looks like the get and import benchmarks have also been flaky lately for similar reasons, they are occasionally hitting max http retries and eventually failing when trying to reach the default http remote.

I'll re-open this for now but downgrading it from a p1 (and marking it as done for the current sprint)