How do I find the nrepl port?

[Divyansh Prakash]

I'm using lein-ring with compojure:

(defproject clojure-foo "0.1.0-SNAPSHOT"

      :description ""

      :url ""

      :dependencies [[org.clojure/clojure "1.6.0"]

                     [compojure "1.1.1"]

                     [ring/ring-json "0.1.2"]

                     [c3p0/c3p0 "0.9.1.2"]

                     [org.clojure/java.jdbc "0.2.3"]

                     [com.h2database/h2 "1.3.168"]

                     [cheshire "4.0.3"]]

      :plugins [[lein-ring "0.7.3"]]

      :ring {:handler clojure-rest.handler/app

             :nrepl {:start? true}}

      :profiles

      {:dev {:dependencies [[ring-mock "0.1.3"]]}})

When I do 

$ lein ring server

It says:

Started server on port 3000

Has the nrepl started? How do I connect to it?