Nightly build broke

[carols10cents]

Not entirely sure why because the PRs all passed, but i'll look into it tonight.

https://travis-ci.org/rust-lang/crates.io/builds/198708315

[LeopoldArkham]

It looks like the only problem is that the DB is updated from a hashmap with no fixed order, but the failing test makes a comparison with a fixed-order Vec. The test on the PR probably got lucky on the order, since there are only two elements!

CC @Susurrus, just testing with .contains() should do it.