/var/lib/pcp/testsuite/644.out is in pcp-testsuite 3.9.10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | QA output created by 644
=== Rebuild #1 ===
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