#<SB-SYS:FD-STREAM for "file /home/aartaka/junkyard/empty.lisp" {1003DDFC83}> is not a character output stream.
   [Condition of type SIMPLE-TYPE-ERROR]

Restarts:
 0: [RETRY] Retry SLY mREPL evaluation request.
 1: [*ABORT] Return to SLY's top level.
 2: [ABORT] abort thread (#<THREAD "sly-channel-1-mrepl-remote-1" RUNNING {1003C6D6B3}>)

Backtrace:
 0: (SB-KERNEL:ILL-OUT #<SB-SYS:FD-STREAM for "file /home/aartaka/junkyard/empty.lisp" {1003DDFC83}>)
      Locals:
        STREAM = #<SB-SYS:FD-STREAM for "file /home/aartaka/junkyard/empty.lisp" {1003DDFC83}>
 1: (TERPRI #<SB-SYS:FD-STREAM for "file /home/aartaka/junkyard/empty.lisp" {1003DDFC83}>)
      Locals:
        #:G0 = #<SB-SYS:FD-STREAM for "file /home/aartaka/junkyard/empty.lisp" {1003DDFC83}>
 2: (PRINT (HELLO) #<SB-SYS:FD-STREAM for "file /home/aartaka/junkyard/empty.lisp" {1003DDFC83}>)
      Locals:
        #:G0 = #<SB-SYS:FD-STREAM for "file /home/aartaka/junkyard/empty.lisp" {1003DDFC83}>
        SB-IMPL::OBJECT = (HELLO)
        STREAM = #<SB-SYS:FD-STREAM for "file /home/aartaka/junkyard/empty.lisp" {1003DDFC83}>
 3: ((LAMBDA ()))
      Locals:
        S = #<SB-SYS:FD-STREAM for "file /home/aartaka/junkyard/empty.lisp" {1003DDFC83}>
 4: (SB-INT:SIMPLE-EVAL-IN-LEXENV (WITH-OPEN-FILE (S #P"~/junkyard/empty.lisp" :ELEMENT-TYPE (QUOTE CHARACTER)) (PRINT (QUOTE #) S)) #<NULL-LEXENV>)
      Locals:
        SB-KERNEL:LEXENV = #<NULL-LEXENV>
        SB-IMPL::ORIGINAL-EXP = (WITH-OPEN-FILE (S #P"~/junkyard/empty.lisp" :ELEMENT-TYPE 'CHARACTER) (PRINT '(HELLO) S))
 5: (EVAL (WITH-OPEN-FILE (S #P"~/junkyard/empty.lisp" :ELEMENT-TYPE (QUOTE CHARACTER)) (PRINT (QUOTE #) S)))
      Locals:
        SB-IMPL::ORIGINAL-EXP = (WITH-OPEN-FILE (S #P"~/junkyard/empty.lisp" :ELEMENT-TYPE 'CHARACTER) (PRINT '(HELLO) S))
 6: ((LAMBDA NIL :IN SLYNK-MREPL::MREPL-EVAL-1))
      Locals:
        SLYNK-MREPL::FORM = (WITH-OPEN-FILE (S #P"~/junkyard/empty.lisp" :ELEMENT-TYPE 'CHARACTER) (PRINT '(HELLO) S))
        SLYNK-MREPL::IN = #<SB-IMPL::STRING-INPUT-STREAM {7FC55B95DDF3}>
 7: (SLYNK::CALL-WITH-RETRY-RESTART "Retry SLY mREPL evaluation request." #<FUNCTION (LAMBDA NIL :IN SLYNK-MREPL::MREPL-EVAL-1) {1003D7F76B}>)
      Locals:
        MSG = "Retry SLY mREPL evaluation request."
        THUNK = #<FUNCTION (LAMBDA () :IN SLYNK-MREPL::MREPL-EVAL-1) {1003D7F76B}>
 8: ((LAMBDA NIL :IN SLYNK-MREPL::MREPL-EVAL-1))
      [No Locals]
 9: ((LAMBDA NIL :IN SLYNK::CALL-WITH-LISTENER))
      Locals:
        SB-C::OBJECT = #<SLYNK-MREPL::MREPL mrepl-1-1>
        SLYNK::SAVING = NIL
10: (SLYNK::CALL-WITH-BINDINGS ((*PACKAGE* . #<PACKAGE "COMMON-LISP-USER">) (*DEFAULT-PATHNAME-DEFAULTS* . #P"/home/aartaka/git/tripod/src/") (*) (**) (***) (/) ...) #<FUNCTION (LAMBDA NIL :IN SLYNK::CALL..
      Locals:
        ALIST = ((*PACKAGE* . #<PACKAGE "COMMON-LISP-USER">) (*DEFAULT-PATHNAME-DEFAULTS* . #P"/home/aartaka/git/tripod/src/") (*) (**) (***) (/) (//) (///) ..)
        FUN = #<FUNCTION (LAMBDA () :IN SLYNK::CALL-WITH-LISTENER) {1003D7F73B}>
11: (SLYNK-MREPL::MREPL-EVAL-1 #<SLYNK-MREPL::MREPL mrepl-1-1> "(with-open-file (s #p\"~/junkyard/empty.lisp\" :element-type 'character) (print '(hello) s))")
      Locals:
        REPL = #<SLYNK-MREPL::MREPL mrepl-1-1>
        STRING = "(with-open-file (s #p\"~/junkyard/empty.lisp\" :element-type 'character) (print '(hello) s))"
12: (SLYNK-MREPL::MREPL-EVAL #<SLYNK-MREPL::MREPL mrepl-1-1> "(with-open-file (s #p\"~/junkyard/empty.lisp\" :element-type 'character) (print '(hello) s))")
      Locals:
        ABORTED = #<SIMPLE-TYPE-ERROR expected-type: (SATISFIES OUTPUT-STREAM-P) datum: #<SB-SYS:FD-STREAM for "file /home/aartaka/junkyard/empty.lisp" {1003DDFC83}>>
        REPL = #<SLYNK-MREPL::MREPL mrepl-1-1>
        RESULTS = NIL
        STRING = "(with-open-file (s #p\"~/junkyard/empty.lisp\" :element-type 'character) (print '(hello) s))"
13: (SLYNK:PROCESS-REQUESTS NIL)
      Locals:
        TIMEOUT = NIL
      Catch-tags:
        SLYNK::STOP-PROCESSING
14: ((LAMBDA NIL :IN SLYNK::SPAWN-CHANNEL-THREAD))
      Locals:
        SLYNK::CHANNEL = #<SLYNK-MREPL::MREPL mrepl-1-1>
15: ((LAMBDA NIL :IN SLYNK::SPAWN-CHANNEL-THREAD))
      Locals:
        SLYNK::CHANNEL = #<SLYNK-MREPL::MREPL mrepl-1-1>
        SLYNK::CONNECTION = #<SLYNK::MULTITHREADED-CONNECTION {10020A2263}>
16: (SLYNK-SBCL::CALL-WITH-BREAK-HOOK #<FUNCTION SLYNK:SLYNK-DEBUGGER-HOOK> #<FUNCTION (LAMBDA NIL :IN SLYNK::SPAWN-CHANNEL-THREAD) {1003C7800B}>)
      Locals:
        CONTINUATION = #<FUNCTION (LAMBDA () :IN SLYNK::SPAWN-CHANNEL-THREAD) {1003C7800B}>
        HOOK = #<FUNCTION SLYNK:SLYNK-DEBUGGER-HOOK>
17: ((FLET SLYNK-BACKEND:CALL-WITH-DEBUGGER-HOOK :IN "/home/aartaka/.config/emacs/elpa/sly-20220713.1433/slynk/backend/sbcl.lisp") #<FUNCTION SLYNK:SLYNK-DEBUGGER-HOOK> #<FUNCTION (LAMBDA NIL :IN SLYNK::S..
      Locals:
        SLYNK-SBCL::FUN = #<FUNCTION (LAMBDA () :IN SLYNK::SPAWN-CHANNEL-THREAD) {1003C7800B}>
        SLYNK-SBCL::HOOK = #<FUNCTION SLYNK:SLYNK-DEBUGGER-HOOK>
18: ((LAMBDA NIL :IN SLYNK::CALL-WITH-LISTENER))
      Locals:
        SB-C::OBJECT = #<SLYNK-MREPL::MREPL mrepl-1-1>
        SLYNK::SAVING = NIL
19: (SLYNK::CALL-WITH-BINDINGS ((*PACKAGE* . #<PACKAGE "COMMON-LISP-USER">) (*DEFAULT-PATHNAME-DEFAULTS* . #P"/home/aartaka/git/tripod/src/") (*) (**) (***) (/) ...) #<FUNCTION (LAMBDA NIL :IN SLYNK::CALL..
      Locals:
        ALIST = ((*PACKAGE* . #<PACKAGE "COMMON-LISP-USER">) (*DEFAULT-PATHNAME-DEFAULTS* . #P"/home/aartaka/git/tripod/src/") (*) (**) (***) (/) (//) (///) ..)
        FUN = #<FUNCTION (LAMBDA () :IN SLYNK::CALL-WITH-LISTENER) {1003C7804B}>
20: ((LAMBDA NIL :IN SLYNK::SPAWN-CHANNEL-THREAD))
      Locals:
        SLYNK::CONNECTION = #<SLYNK::MULTITHREADED-CONNECTION {10020A2263}>
21: ((FLET SB-UNIX::BODY :IN SB-THREAD::RUN))
      [No Locals]
      Catch-tags:
        SB-THREAD::%RETURN-FROM-THREAD
22: ((FLET "WITHOUT-INTERRUPTS-BODY-11" :IN SB-THREAD::RUN))
23: ((FLET SB-UNIX::BODY :IN SB-THREAD::RUN))
      [No Locals]
      Catch-tags:
        SB-THREAD::%ABORT-THREAD
        SB-IMPL::%END-OF-THE-WORLD
        SB-INT:TOPLEVEL-CATCHER
24: ((FLET "WITHOUT-INTERRUPTS-BODY-4" :IN SB-THREAD::RUN))
25: (SB-THREAD::RUN)
26: ("foreign function: call_into_lisp_")
27: ("foreign function: funcall1")