Don't have bitrig cargo nightlies yet

alexcrichton · alexcrichton · commit 8227ed04cf85 · 2016-03-24T09:14:29.000-07:00
diff --git a/master/master.cfg b/master/master.cfg
@@ -1913,6 +1913,9 @@ for platform in cargo_platforms:
             slavenames=slaves,
             factory=cargo_buildfactory(platform)))
 
+    if platform not in cargo_dist_platforms:
+        continue
+
     # Cargo nightly
     c['builders'].append(BuilderConfig(
             mergeRequests=True,
