Nim 1.6.0 RC2

[exelotl]

I tried updating via choosenim but it fails due to a invalid option when 
building koch:
    
    
    [exelotl@ringo ~]$ choosenim \#version-1-6
    Downloading Nim version-1-6 from GitHub
    [##################################################] 100.0% 0kb/s
     Extracting version-1-6.tar.gz
       Building Nim #version-1-6
       Warning: Building from latest C sources. They may not be compatible with 
the Nim version you have chosen to install.
    Downloading Nim C sources from GitHub
    [##################################################] 100.0% 0kb/s
     Extracting 64e34778fa7e114b4afc753c7845dee250584167.tar.gz
       Building C sources
       Building koch
     Exception: Execution failed with exit code 1
            ... Command: ./bin/nim c koch
            ... Output: 
/home/exelotl/.choosenim/toolchains/nim-#version-1-6/config/nim.cfg(16, 1) 
Error: invalid command line option: '--hint'
       Cleaning failed build
           Tip: 9 messages have been suppressed, use --verbose to show them.
         Error: Build failed
    
    
    Run