fix(tvix/eval): use correct lambda address in observer

Instead of the reference to the Rc, print the address of the Rc
itself.

Change-Id: I4560598924db7d2864d5c4ae9af847aee2ea7eff
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6471
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>

tvix/eval/src/observer.rs

@@ -82,7 +82,7 @@ impl<W: Write> DisassemblingObserver<W> {
             &mut self.writer,
             "=== compiled {} @ {:p} ({} ops) ===",
             kind,
-            lambda,
+            *lambda,
             lambda.chunk.code.len()
         );
     }