Add timeouts everywhere. Should help if the ADB socket gets stuck like it sometimes does.

lib/roles/device/plugins/stats.js

@@ -17,6 +17,7 @@ module.exports = syrup.serial()
 
     function openService() {
       return devutil.ensureUnusedPort(adb, options.serial, service.port)
+        .timeout(10000)
         .then(function() {
           return adb.shell(options.serial, [
               remote.bin
@@ -28,9 +29,11 @@ module.exports = syrup.serial()
               streamutil.talk(log, 'Stats shell says: "%s"', out)
             })
         })
+        .timeout(10000)
         .then(function() {
           return devutil.waitForPort(adb, options.serial, service.port)
         })
+        .timeout(15000)
         .then(function(conn) {
           return lifecycle.share('Stats connection', conn)
         })