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:

  [error: Bad file: /builddir/build/SOURCES/go-crypto-1.0.0.tar.gz: No such file or directory
    Bad file: /builddir/build/SOURCES/go-crypto-1.0.0.tar.gz: No such file or directory]: [Sources are not available in Lookaside Cache]

Issue: Sources are not available in Lookaside Cache
Resolution: Make sure that all files are uploaded correctly. Ensure `sources` contains the correct sources.