Fix role not set in tests

Author: jonnor

spec/participant.coffee

@@ -7,7 +7,7 @@ exampleProg = (name) ->
     return path.join __dirname, '..', 'target', 'debug', 'examples', name
 
 participants =
-  'rust/Repeat': [ exampleProg 'repeat' ]
+  'rust/Repeat': [ exampleProg('repeat'), '--role=repeat' ]
 
 describe 'Participants', ->
   address = 'amqp://localhost'

src/participant.rs

@@ -274,7 +274,7 @@ pub fn main(orig: Participant) {
     let p = Participant { info: info, process: orig.process }; // XXX: hack
 
     let mut c = start_participant(&p, &options);
-    println!("{}({}) started", &options.role, &p.info.component);
+    println!("{}({}) started", &p.info.role, &p.info.component);
     c.channel.start_consuming();
 
     stop_participant(&p, &mut c);