bug: find panic when a file owner or uid invalid with -ls

[HackingRepo]

Hi, findutils mainteners

we reproduced that via

$ touch /tmp/panic_file
$ sudo chown 9999:9999 /tmp/panic_file

as i see a panic

relunsec@relunsec:~/software/findutils$ ./target/release/find /tmp/panic_file -ls

thread 'main' (154111) panicked at src/find/matchers/ls.rs:155:48:
called `Result::unwrap()` on an `Err` value: ENOENT
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

but the gnu version it fully works

relunsec@relunsec:~/software/findutils$ /bin/find /tmp/panic_file -ls
    13327      0 -rw-rw-r--   1 9999     9999            0 Jun  4 12:34 /tmp/panic_file

[leeewee]

Fixed in main by #721: find -ls now falls back to the numeric UID/GID when the owner has no passwd/group entry. This is the same bug as #717 (which I filed as a duplicate before spotting this one). Safe to close as resolved.