Discovered after installing Calva vscode plugin

lein-repl-traceback

#error {
 :cause Wrong number of args (1) passed to: clojure.core/cons--5376
 :via
 [{:type clojure.lang.Compiler$CompilerException
   :message Syntax error compiling at (scratch/core.clj:26:1).
   :data #:clojure.error{:phase :compile-syntax-check, :line 26, :column 1, :source scratch/core.clj}
   :at [clojure.lang.Compiler load Compiler.java 7648]}
  {:type clojure.lang.ArityException
   :message Wrong number of args (1) passed to: clojure.core/cons--5376
   :at [clojure.lang.AFn throwArity AFn.java 429]}]
 :trace
 [[clojure.lang.AFn throwArity AFn.java 429]
  [clojure.lang.AFn invoke AFn.java 32]
  [scratch.core$filterz invokeStatic core.clj 21]
  [scratch.core$filterz invoke core.clj 20]
  [scratch.core$eval169 invokeStatic core.clj 26]
  [scratch.core$eval169 invoke core.clj 26]
  [clojure.lang.Compiler eval Compiler.java 7177]
  [clojure.lang.Compiler load Compiler.java 7636]
  [clojure.lang.RT loadResourceScript RT.java 381]
  [clojure.lang.RT loadResourceScript RT.java 372]
  [clojure.lang.RT load RT.java 459]
  [clojure.lang.RT load RT.java 424]
  [clojure.core$load$fn__6839 invoke core.clj 6126]
  [clojure.core$load invokeStatic core.clj 6125]
  [clojure.core$load doInvoke core.clj 6109]
  [clojure.lang.RestFn invoke RestFn.java 408]
  [clojure.core$load_one invokeStatic core.clj 5908]
  [clojure.core$load_one invoke core.clj 5903]
  [clojure.core$load_lib$fn__6780 invoke core.clj 5948]
  [clojure.core$load_lib invokeStatic core.clj 5947]
  [clojure.core$load_lib doInvoke core.clj 5928]
  [clojure.lang.RestFn applyTo RestFn.java 142]
  [clojure.core$apply invokeStatic core.clj 667]
  [clojure.core$load_libs invokeStatic core.clj 5985]
  [clojure.core$load_libs doInvoke core.clj 5969]
  [clojure.lang.RestFn applyTo RestFn.java 137]
  [clojure.core$apply invokeStatic core.clj 667]
  [clojure.core$require invokeStatic core.clj 6007]
  [clojure.core$require doInvoke core.clj 6007]
  [clojure.lang.RestFn invoke RestFn.java 408]
  [user$eval5 invokeStatic form-init15005206258206258154.clj 1]
  [user$eval5 invoke form-init15005206258206258154.clj 1]
  [clojure.lang.Compiler eval Compiler.java 7177]
  [clojure.lang.Compiler eval Compiler.java 7166]
  [clojure.lang.Compiler eval Compiler.java 7166]
  [clojure.lang.Compiler load Compiler.java 7636]
  [clojure.lang.Compiler loadFile Compiler.java 7574]
  [clojure.main$load_script invokeStatic main.clj 475]
  [clojure.main$init_opt invokeStatic main.clj 477]
  [clojure.main$init_opt invoke main.clj 477]
  [clojure.main$initialize invokeStatic main.clj 508]
  [clojure.main$null_opt invokeStatic main.clj 542]
  [clojure.main$null_opt invoke main.clj 539]
  [clojure.main$main invokeStatic main.clj 664]
  [clojure.main$main doInvoke main.clj 616]
  [clojure.lang.RestFn applyTo RestFn.java 137]
  [clojure.lang.Var applyTo Var.java 705]
  [clojure.main main main.java 40]]}
nREPL server started on port 42089 on host 127.0.0.1 - nrepl://127.0.0.1:42089
REPL-y 0.4.4, nREPL 0.6.0
Clojure 1.10.1
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04
    Docs: (doc function-name-here)
          (find-doc "part-of-name-here")
  Source: (source function-name-here)
 Javadoc: (javadoc java-object-or-class-here)
    Exit: Control+D or (exit) or (quit)
 Results: Stored in vars *1, *2, *3, an exception in *e