Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
dawglib.c:121:1: error: number of arguments doesnât match prototype
  121 | {
      | ^
libcrack.h:86:12: error: prototype declaration
   86 | extern int UnPackDAWG();
      |            ^~~~~~~~~~
Number of arguments doesn't match the prototype `PackDAWG`.