Ignore this email.  Although it is true that something has changed in
how org processes src blocks, my invocation was wrong and org now
catches the error properly.  I had to change "output" to "value" to get
the call statement to work.

Thanks and sorry for the noise.

-- 
Eric S Fraga via Emacs 27.0.50, Org release_9.1.6-303-g6cf5fc.dirty