In the DataFramesMeta test suite, we load Lazy.jl to work with `@>` and `@as`. Tests fail due to something with `Lazy` and `MacroTools` See [here](https://travis-ci.com/github/JuliaData/DataFramesMeta.jl/jobs/401412977). Relevant PR [here](https://github.com/JuliaData/DataFramesMeta.jl/pull/191).