Traceback (most recent call last):
   0 File "/app/src/utils.lisp"
       In (LAMBDA () :IN ULTRALISP/UTILS:RUN-PROGRAM)
     Args ()
   1 File "/root/.roswell/lisp/asdf/3.3.7.2/asdf.lisp", line 3709
       In UIOP/FILESYSTEM:CALL-WITH-CURRENT-DIRECTORY
     Args (#P"/tmp/checker/qlot/" #<FUNCTION (LAMBDA () :IN ULTRALISP/UTILS:RUN-PROGRAM) {120854FE8B}>)
   2 File "/app/src/utils.lisp", line 342
       In ULTRALISP/UTILS:RUN-PROGRAM
     Args (("/root/.roswell/bin/qlot" "update") :DIRECTORY #P"/tmp/checker/qlot/" :IGNORE-ERRORS-P NIL)
   3 File "/app/src/pipeline/checking.lisp", line 210
       In ULTRALISP/PIPELINE/CHECKING::CALL-WITH-FRESH-QUICKLISP
     Args ("http://dist.ultralisp.org/" NIL #<FUNCTION (FLET ULTRALISP/PIPELINE/CHECKING::RUN-WITH-FRESH-QUICKLISP :IN ULTRALISP/PIPELINE/CHECKING::PERFORM2) {1208532C3B}>)
   4 File "/app/src/pipeline/checking.lisp"
       In (LAMBDA () :IN ULTRALISP/PIPELINE/CHECKING::PERFORM2)
     Args ()
   5 File "/app/src/pipeline/checking.lisp"
       In (FLET "doit-3" :IN ULTRALISP/PIPELINE/CHECKING::PERFORM2)
     Args ()
   6 File "/app/src/pipeline/checking.lisp"
       In (FLET SB-IMPL::TIMEOUT-BODY :IN ULTRALISP/PIPELINE/CHECKING::PERFORM2)
     Args ()
   7 File "/app/src/pipeline/checking.lisp"
       In (LAMBDA () :IN ULTRALISP/PIPELINE/CHECKING::PERFORM2)
     Args ()
   8 File "/app/src/utils/retries.lisp", line 56
       In ULTRALISP/UTILS/RETRIES::CALL-WITH-TRIES
     Args (843966 3 960 #<FUNCTION (LAMBDA () :IN ULTRALISP/PIPELINE/CHECKING::PERFORM2) {1206FFC13B}>)
   9 File "/app/src/pipeline/checking.lisp", line 327
       In ULTRALISP/PIPELINE/CHECKING::PERFORM2
     Args (#<ULTRALISP/MODELS/CHECK:CHECK2 PENDING VIA-CRON for #<SOURCE github://tamurashingo/lem-ruby-mode@NIL (v0)>> :FORCE NIL)
Condition ULTRALISP/UTILS::PROGRAM-FAILED: Program ("/root/.roswell/bin/qlot"
                                                    "update") failed with code 255. Here is it's output:
[?7lReading '/tmp/checker/qlot/qlfile'...
● [1/2] quicklisp  
● [2/2] ultralisp  
⨯ [2/2] ultralisp  Failed to install

Unexpected error: The bounding indices 6 and NIL are bad for a sequence of length 4.
See also:
  The ANSI Standard, Glossary entry for "bounding index designator"
  The ANSI Standard, writeup for Issue SUBSEQ-OUT-OF-BOUNDS:IS-AN-ERROR
This could be a bug in Qlot.
Report it at https://github.com/fukamachi/qlot/issues/new/choose.
Please attach the stack trace dumped to '/tmp/qlot-error-AR3FSGH0.log'.
[?7h