diff -r b40b0e18a918 -r dfce0539a77d jitcraft/RootScopes.cpp
--- a/jitcraft/RootScopes.cpp	Tue Jul 10 02:11:13 2012 -0700
+++ b/jitcraft/RootScopes.cpp	Wed Jul 11 01:12:54 2012 -0700
@@ -45,8 +45,11 @@
 
     Block *block = new Block(blocks_);
     if (!block) {
-        // :TODO: We are not prepared for this...
-        fprintf(stderr, "Could not allocate a local root scope.\n");
+        // We are not prepared for this. We'll start dishing out NULL-valued
+        // ScopedRoots, and the engine generally assumes infallbility. Rather
+        // then NULL check all sorts of nodes on parse trees, or add boolean
+        // setters, for now we just abort.
+        fprintf(stderr, "Unrecoverable error: could not allocate a local root scope. Aborting!\n");
         abort();
         return false;
     }