Given following log snippets, their explanation, and nothing else, explain what failure, if any, occurred during build of this package.

  Snippets are in a format of [X] : [Y], where [X] is a log snippet, and [Y] is the explanation.

  Snippets are delimited with '================'.

  Drawing on information from all snippets, provide a concise explanation of the issue and recommend a solution.

  Explanation of the issue, and recommended solution, should take a handful of sentences.

  Snippets:

  [+ /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]
=============
[error: Bad exit status from /var/tmp/rpm-tmp.ZcVUQS (%prep)]: [Failed in %prep]

Issue: Failed to download proper sources
Resolution: Check how your tarball sourced, maybe check Source: in spec file.