The error suggests that rake tasks cannot return so I think the merged fix referenced earlier is incorrect. I don’t have an environment set up to do any testing or create a pull request but I think using the following instead would fix this. (cc @martin)
Replacing lines 180 to 187:
if !result
puts "Skipping"
else
puts "Assets rules status: #{result[:assets_rules_status]}."
puts "Backup rules status: #{result[:backup_rules_status]}."
puts "Direct upload rules status: #{result[:direct_upload_rules_status]}."
end