I have added the following rake code: require 'digest' require 'ci/reporter/rake/minitest' ENV["CI_REPORTS"] = "reports/" . . . . desc 'Run Subset of Tests' task :subset => 'ci:setup:minitest' do . . . But no reports folder or xml files are being generated. ruby 2.6.3p62 (2019-04-16 revision 67580) Minitest-5.14.4 ci_reporter_minitest-1.0.0