When I try to install app on my iPhone the Xcode gets stuck on Copying Pkginfo.
I have deleted Xcode beta & installed it again. Still same problem.
I created new single page app & not a single line of code. It works on simulator but does not install on my iPhone 5s with iOS 9 beta 5 installed in it.
None of the apps are getting installed on iPhone from Xcode.
It was working fine & suddenly stopped working.
Working with betas is a little bit hard and sometimes strange things happen, like this one.
When something suddenly stops working you should try a restart for your Mac and for your IPhone especially when it works on simulator but on phone not.
This must be your first solution when things like this happen.