{motive : Lean.Kernel.Exception → Sort u} →
  (t : Lean.Kernel.Exception) →
    t.ctorIdx = 5 →
      ((env : Lean.Kernel.Environment) →
          (lctx : Lean.LocalContext) → (expr : Lean.Expr) → motive (Lean.Kernel.Exception.funExpected env lctx expr)) →
        motive t