/usr/lib/debug/.build-id/e1/ is in libregf-dbg 20160107-1.
This file is owned by root:root, with mode 0o755.
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    /usr/lib/debug/.build-id/e1/bda4325b6c27e0f8b5cfdf7e1197bd02c37113.debug
    
 | application/x-executable | root:root | 0o644 | 30.0 KB |