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 exit status from /var/tmp/rpm-tmp.crCZP8 (%check)
    Bad exit status from /var/tmp/rpm-tmp.crCZP8 (%check)
Child return code was: 1
]: [The build failed in %check section.]
=============
[-Ddomain_prefix=org.gnome.FlatpakApp]: [This is a Flatpak build.]
=============
[+ for f in tracker-miner-fs-3.service tracker-miner-fs-control-3.service tracker-writeback-3.service
+ test -f /builddir/build/BUILD/tracker-miners-3.7.4-build/BUILDROOT/usr/lib/systemd/user/tracker-miner-fs-3.service]: [This is test of systemd unit files.]

Issue: Systemd unit files are in this case of Flatpak build irrelevant.
Resolution: You can skip the %check section for flatpak build by adding this condition:

%if ! 0%{?flatpak}
%check 
...
%endif