Backtrace for: #<SB-THREAD:THREAD "main thread" RUNNING {10005E85B3}>
0: (ASDF/SESSION:SYSDEF-ERROR "OPERATION instances must only be created through MAKE-OPERATION.")
1: ((:METHOD INITIALIZE-INSTANCE :BEFORE (ASDF/OPERATION:OPERATION)) #<CFFI-GROVEL::PROCESS-OP >) [fast-method]
2: ((LAMBDA ()))
3: ((:METHOD ASDF/ACTION:PERFORM (ASDF/LISP-ACTION:COMPILE-OP CFFI-GROVEL::PROCESS-OP-INPUT)) #<ASDF/LISP-ACTION:COMPILE-OP > #<CFFI-GROVEL:GROVEL-FILE "cffi-libffi" "libffi" "libffi">) [fast-method]
4: ((SB-PCL::EMF ASDF/ACTION:PERFORM) #<unused argument> #<unused argument> #<ASDF/LISP-ACTION:COMPILE-OP > #<CFFI-GROVEL:GROVEL-FILE "cffi-libffi" "libffi" "libffi">)
5: ((LAMBDA NIL :IN ASDF/ACTION:CALL-WHILE-VISITING-ACTION))
6: ((:METHOD ASDF/ACTION:PERFORM :AROUND (ASDF/LISP-ACTION:COMPILE-OP CFFI-GROVEL::CC-FLAGS-MIXIN)) #<ASDF/LISP-ACTION:COMPILE-OP > #<CFFI-GROVEL:GROVEL-FILE "cffi-libffi" "libffi" "libffi">) [fast-method]
7: ((:METHOD ASDF/ACTION:PERFORM-WITH-RESTARTS :AROUND (T T)) #<ASDF/LISP-ACTION:COMPILE-OP > #<CFFI-GROVEL:GROVEL-FILE "cffi-libffi" "libffi" "libffi">) [fast-method]
8: ((:METHOD ASDF/PLAN:PERFORM-PLAN (T)) #<ASDF/PLAN:SEQUENTIAL-PLAN {10028A98E3}>) [fast-method]
9: ((FLET SB-C::WITH-IT :IN SB-C::%WITH-COMPILATION-UNIT))
10: ((:METHOD ASDF/PLAN:PERFORM-PLAN :AROUND (T)) #<ASDF/PLAN:SEQUENTIAL-PLAN {10028A98E3}>) [fast-method]
11: ((:METHOD ASDF/OPERATE:OPERATE (ASDF/OPERATION:OPERATION ASDF/COMPONENT:COMPONENT)) #<ASDF/LISP-ACTION:LOAD-OP > #<ASDF/SYSTEM:SYSTEM "cffi-libffi"> :PLAN-CLASS NIL :PLAN-OPTIONS NIL) [fast-method]
12: ((SB-PCL::EMF ASDF/OPERATE:OPERATE) #<unused argument> #<unused argument> #<ASDF/LISP-ACTION:LOAD-OP > #<ASDF/SYSTEM:SYSTEM "cffi-libffi"> :VERBOSE NIL)
13: ((LAMBDA NIL :IN ASDF/OPERATE:OPERATE))
14: ((:METHOD ASDF/OPERATE:OPERATE :AROUND (T T)) #<ASDF/LISP-ACTION:LOAD-OP > #<ASDF/SYSTEM:SYSTEM "cffi-libffi"> :VERBOSE NIL) [fast-method]
15: ((SB-PCL::EMF ASDF/OPERATE:OPERATE) #<unused argument> #<unused argument> ASDF/LISP-ACTION:LOAD-OP "cffi-libffi" :VERBOSE NIL)
16: ((LAMBDA NIL :IN ASDF/OPERATE:OPERATE))
17: ((:METHOD ASDF/OPERATE:OPERATE :AROUND (T T)) ASDF/LISP-ACTION:LOAD-OP "cffi-libffi" :VERBOSE NIL) [fast-method]
18: (ASDF/SESSION:CALL-WITH-ASDF-SESSION #<CLOSURE (LAMBDA NIL :IN ASDF/OPERATE:OPERATE) {1002601CBB}> :OVERRIDE T :KEY NIL :OVERRIDE-CACHE T :OVERRIDE-FORCING NIL)
19: ((LAMBDA NIL :IN ASDF/OPERATE:OPERATE))
20: (ASDF/SESSION:CALL-WITH-ASDF-SESSION #<CLOSURE (LAMBDA NIL :IN ASDF/OPERATE:OPERATE) {10025D738B}> :OVERRIDE NIL :KEY NIL :OVERRIDE-CACHE NIL :OVERRIDE-FORCING NIL)
21: ((:METHOD ASDF/OPERATE:OPERATE :AROUND (T T)) ASDF/LISP-ACTION:LOAD-OP "cffi-libffi" :VERBOSE NIL) [fast-method]
22: (ASDF/OPERATE:LOAD-SYSTEM "cffi-libffi" :VERBOSE NIL)
23: (QUICKLISP-CLIENT::CALL-WITH-MACROEXPAND-PROGRESS #<CLOSURE (LAMBDA NIL :IN QUICKLISP-CLIENT::APPLY-LOAD-STRATEGY) {10025D70EB}>)
24: (QUICKLISP-CLIENT::AUTOLOAD-SYSTEM-AND-DEPENDENCIES "cffi-libffi" :PROMPT NIL)
25: ((:METHOD QL-IMPL-UTIL::%CALL-WITH-QUIET-COMPILATION (T T)) #<unused argument> #<CLOSURE (FLET QUICKLISP-CLIENT::QL :IN QUICKLISP-CLIENT:QUICKLOAD) {100356918B}>) [fast-method]
26: ((:METHOD QL-IMPL-UTIL::%CALL-WITH-QUIET-COMPILATION :AROUND (QL-IMPL:SBCL T)) #<QL-IMPL:SBCL {1002DA2F23}> #<CLOSURE (FLET QUICKLISP-CLIENT::QL :IN QUICKLISP-CLIENT:QUICKLOAD) {100356918B}>) [fast-method]
27: ((:METHOD QUICKLISP-CLIENT:QUICKLOAD (T)) "cffi-libffi" :PROMPT NIL :SILENT NIL :VERBOSE NIL) [fast-method]
28: (QL-DIST::CALL-WITH-CONSISTENT-DISTS #<CLOSURE (LAMBDA NIL :IN QUICKLISP-CLIENT:QUICKLOAD) {100355670B}>)
29: (SB-INT:SIMPLE-EVAL-IN-LEXENV (QUICKLISP-CLIENT:QUICKLOAD "cffi-libffi") #<NULL-LEXENV>)
30: (EVAL (QUICKLISP-CLIENT:QUICKLOAD "cffi-libffi"))
31: (INTERACTIVE-EVAL (QUICKLISP-CLIENT:QUICKLOAD "cffi-libffi") :EVAL NIL)
32: (SB-IMPL::REPL-FUN NIL)
33: ((LAMBDA NIL :IN SB-IMPL::TOPLEVEL-REPL))
34: (SB-IMPL::%WITH-REBOUND-IO-SYNTAX #<CLOSURE (LAMBDA NIL :IN SB-IMPL::TOPLEVEL-REPL) {1003555BAB}>)
35: (SB-IMPL::TOPLEVEL-REPL NIL)
36: (SB-IMPL::TOPLEVEL-INIT)
37: ((FLET SB-UNIX::BODY :IN SAVE-LISP-AND-DIE))
38: ((FLET "WITHOUT-INTERRUPTS-BODY-36" :IN SAVE-LISP-AND-DIE))
39: ((LABELS SB-IMPL::RESTART-LISP :IN SAVE-LISP-AND-DIE))