Can't find location of files after running drush make
Look for errors and warnings in the output of the make command. An empty directory is often the result of an error. This leaves your install directory in the drush temp location (usually /tmp/drush-xxxx). 

You can add the --force-complete argument ignore errors and to copy the directory in to place anyway. But it's probably worth figuring out what the errors are.

drush make --force-complete qmlc.make

https://github.com/drush-ops/drush/blob/master/commands/make/make.drush.inc#L58