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: 
+ /usr/lib/rpm/rpmuncompress -x /builddir/build/SOURCES/78af4ff.zip
+ STATUS=0
+ '[' 0 -ne 0 ']'
+ cd libbacktrace-1.0
/var/tmp/rpm-tmp.ZcVUQS: line 42: cd: libbacktrace-1.0: No such file or directory
Might indicate that source was wrong, since cd to it does not work