roachtest: queue/nodes=1 failed on master

SHA: https://github.com/cockroachdb/cockroach/commits/bf76db84cb64dc90f65d8b2e129c75028127cda2

Parameters:

Failed test: https://teamcity.cockroachdb.com/viewLog.html?buildId=822738&tab=buildLog

```
	test.go:499,queue.go:130,queue.go:33: resulting table had 1 entries, expected 100 or fewer

```