Hook up activerecord metrics log subscriber.

lib/travis/api/app.rb

@@ -10,6 +10,7 @@ require 'gh'
 require 'raven'
 require 'sidekiq'
 require 'metriks/reporter/logger'
+require 'travis/support/log_subscriber/active_record_metrics'
 
 # Rack class implementing the HTTP API.
 # Instances respond to #call.
@@ -114,6 +115,7 @@ module Travis::Api
           config.dsn = Travis.config.sentry.dsn
         end if Travis.config.sentry
         
+        Travis::LogSubscriber::ActiveRecordMetrics.attach
         $metriks_reporter = Metriks::Reporter::Logger.new
       end