harsha abeykoon / Mbed 2 deprecated rtest

if line number 55 is omitted the program runs. But why?

Diff: mbed.bld

Revision:
0:e1853421807f
diff -r 000000000000 -r e1853421807f mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Jan 11 05:12:37 2012 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/078e4b97a13e