Combining the -P (--no-dereference) option and the -p (--preserve=mode,ownership,timestamps) option in uutils cp does not match the behavior of GNU cp when attempting to copy a symbolic link that points to a file that does not exist. (Contrast this with issue #3364, which was just about the -P option. That issue was resolved.)

GNU cp:

$ ln -s no-such-file dangle && cp -Pp dangle d2
# no output, d2 is created

uutils cp:

$ ln -s no-such-file dangle && ./target/release/cp -Pp dangle d2
./target/release/cp: 'dangle' -> '/home/jeffrey/src/coreutils/d2': No such file or directory (os error 2)