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:

  [RPM build errors:
    %changelog not in descending chronological order
    File not found: /builddir/build/BUILDROOT/nut-2.8.1-2.el9.x86_64/usr/share/man/man8/adelsystem_cbi.8.gz
    File not found: /builddir/build/BUILDROOT/nut-2.8.1-2.el9.x86_64/usr/share/man/man8/apc_modbus.8.gz
    File not found: /builddir/build/BUILDROOT/nut-2.8.1-2.el9.x86_64/usr/share/man/man8/asem.8.gz
    File not found: /builddir/build/BUILDROOT/nut-2.8.1-2.el9.x86_64/usr/share/man/man8/generic_modbus.8.gz
    File not found: /builddir/build/BUILDROOT/nut-2.8.1-2.el9.x86_64/usr/share/man/man8/huawei-ups2000.8.gz
    File not found: /builddir/build/BUILDROOT/nut-2.8.1-2.el9.x86_64/usr/share/man/man8/phoenixcontact_modbus.8.gz
    File not found: /builddir/build/BUILDROOT/nut-2.8.1-2.el9.x86_64/usr/share/man/man8/pijuice.8.gz
    File not found: /builddir/build/BUILDROOT/nut-2.8.1-2.el9.x86_64/usr/share/man/man8/socomec_jbus.8.gz
Child return code was: 1
]: [rmbuild complains about files not found]

Issue: build failed as spec file says that build should have created these files, but they weren't.
Resolution: This may be caused by rebase to new upstream version that removed or renamed some files or some change in build environment, where some build dependency may be missing. Consult with changelog and configure script where it does not find some requirement.