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:

  [1 out of 1 hunk FAILED -- saving rejects to file src/built_coefficients.rs.rej]: [The patching of the built_coefficients.rs has failed.]
=============
[+ /usr/lib/rpm/rpmuncompress /builddir/build/SOURCES/0001-Fix-test-build-on-i686.patch]: [This is the file that triggered the failure while patching.]

Issue: The patching of the built_coefficients.rs has failed, this is most likely because the file that was about to be patched was updated in the place it was about to be patched so the original file of the patch no longer matches it or the patch contains a mistake.
Resolution: Review the patch and the file about to be patched, ensure the file about to be patched was not changed in the place that is being patched after the patch was created, ensure the patch file is in the correct format and does not contain any mistakes.