errorincrystal

Code:
  class Out
      def Array.new
      [1,2,3]
          
      end
  end
  puts Out
  
Error:
BUG: `typeof(callstack)` at /usr/lib/crystal/callstack.cr:68:20 has no type
Error opening file 'crystal' with mode 'r': No such file or directory (Errno)
Failed to raise an exception: END_OF_STACK
[0x55f2c5c041d7] __crystal_raise +375
[0x55f2c5c08ae5] ???
[0x55f2c5c193cd] ???
[0x55f2c5c11a51] ???
[0x55f2c5c10e1a] ???
[0x55f2c5c0dd37] ???
[0x55f2c5c2ac59] main +13817
[0x7f16d6ff343a] __libc_start_main +234
[0x55f2c5c03c7a] _start +42
[0x0] ???

Screenfetch:
                  -`                 
                  .o+`                 bitmapper@archlinux
                 `ooo/                 OS: Arch Linux 
                `+oooo:                Kernel: x86_64 Linux 4.11.9-1-ARCH
               `+oooooo:               Uptime: 1h 13m
               -+oooooo+:              Packages: 1064
             `/:-:++oooo+:             Shell: bash 4.4.12
            `/++++/+++++++:            Resolution: 1440x900
           `/++++++++++++++:           WM: OpenBox
          `/+++ooooooooooooo/`         WM Theme: nordic
         ./ooosssso++osssssso+`        GTK Theme: Flat-Plat [GTK2/3]
        .oossssso-````/ossssss+`       Icon Theme: Numix-Light
       -osssssso.      :ssssssso.      Font: Cantarell 11
      :osssssss/        osssso+++.     CPU: AMD Phenom II X4 920 @ 4x 2.8GHz [45.5°C]
     /ossssssss/        +ssssooo/-     GPU: Gallium 0.4 on AMD BARTS (DRM 2.49.0 / 4.11.9-1-ARCH, LLVM 4.0.1)
   `/ossssso+/:-        -:/+osssso+-   RAM: 2531MiB / 3955MiB
  `+sso+:-`                 `.-/+oso: 
 `++:.                           `-/+/
 .`                                 `/

Version:
Crystal 0.23.1 (2017-07-17) LLVM 4.0.1