appending found password to hash list

[Snoopy]

im not quite sure what do you mean?

a plain password is not a hash, so adding the plain password to the hashlist will result in an error telling you, that this is not a hash, quite obviously

found hash:pass combinations are stored in your potfile
if you want to store found plains, see option --outfile together with --outfile-format

# | Format
===+========
1 | hash[alt]
2 | plain
3 | hex_plain
4 | crack_pos
5 | timestamp absolute
6 | timestamp relative

you can combine format like --outfile-format=1,2 which will result in hash[alt]:plain (which will be like a second potfile) if you just want the plain use only 2