I’m getting this

Framework failures:

   .  ./perf/should_run/all.T [] (name 'stats_num_field' is not defined)

I think it comes from this:

commit fb669f51b3f2cae79511ac3d1c43939d951b1f69

Author: Tobias Decking <Tobias.Decking@gmail.com>

Date:   Thu Dec 6 15:32:18 2018 -0500

    Add fusion rules for the zipWith functions in base (#15263)

Simon