Reading database from /disk/work/playground/cover_db
found cover.13 in /disk/work/playground/cover_db/runs/1570436863.1576.17667 at /usr/pkgs/perl/5.26.1/lib64/site_perl/Devel/Cover/DB.pm line 217.
Devel::Cover: /disk/work/playground/cover_db/runs/1570436863.1576.17667 is an invalid database                                                                     


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HTML output written to /disk/work/playground/cover_db/coverage.html
done.