Comment 1 for bug 898331

It appears that the
  (check-type request qapi-space-inventory-action) ;; must be both types
just after that declare in the function body is somehow causing the error.

If I remove that check, the function compiles. If I add it back, it causes a
; caught STYLE-WARNING:
; reading an ignored variable: ALL-SEGMENT-REQUESTS

NB: results obtained by using the RETRY restart while I have a
(eval-when (:compile-toplevel :load-toplevel :execute) (error "foo"))
right after the function, to make sure I can error and retry even when it works.

Does this information help?