Forgot to add iron+nickel to travis.yml

.travis.yml

@@ -145,6 +145,8 @@ env:
     - "TESTDIR=Ruby/rails"
     - "TESTDIR=Ruby/rails-stripped"
     - "TESTDIR=Ruby/sinatra"
+    - "TESTDIR=Rust/iron"
+    - "TESTDIR=Rust/nickel"
     - "TESTDIR=Scala/akka-http"
     - "TESTDIR=Scala/colossus"
     - "TESTDIR=Scala/finagle"