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:

  [Copr build error: Build failed]: [Build failure message.]
=============
[
Copr repository                                 3.4 kB/s | 257  B     00:00    
Additional repo copr_freeipa_freeipa_master_fed 5.3 kB/s | 341  B     00:00    
Errors during downloading metadata for repository 'copr_freeipa_freeipa_master_fedora_releasever_basearch':
  - Status code: 404 for https://download.copr.fedorainfracloud.org/results/@freeipa/freeipa-master/fedora-38-aarch64/repodata/repomd.xml (IP: 108.138.85.53)
Error: Failed to download m]: [Final, unsuccessful attempt to download repository metadata.]
=============
[
This system is not registered with an entitlement server. You can use subscription-manager to registe]: [Server isn't enrolled in Red Hat subscription. ]
=============
[[2024-01-30 06:54:14,752][ ERROR][PID:3785726] Backend process error: No success file => build failur]: [Build was declared as failed, since there is no success file. ]

Issue: Package repository was not available.
Resolution: Ensure that all repositories used by package manager are available before build.