I just upgraded to 0.3.8 successfully using useBabelInstrumenter. Now trying to get to the latest version, but it hangs CI.

https://travis-ci.org/kellyselden/package-hint-historic-resolver/builds/188068217
https://github.com/kellyselden/package-hint-historic-resolver/pull/300/files#diff-b9cfc7f2cdf78a7f4b91a753d10865a2R34