Failed to parse hashes using the 'shadow'

[Snoopy]

take a look inside your hash file, rar2john puts not needed data at the end (it hink something like the filename etc.) delete this, this is why you get the error token length exception 

see example hash for rar, this is what hashcat expects 
rar5$16$74575567518807622265582327032280$15$f8b4064de34ac02ecabfe9abdf93ed6a$8$9843834ed0f7c754

regarding your command line, delete the ' at the beginning and end of your mask, also you dont need to feed the rar, just the file containing the hash