/usr/x86_64-linux-gnux32/bin/ar is in binutils-x86-64-linux-gnux32 2.30-15ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/x86_64-linux-gnux32/bin/../../bin/x86_64-linux-gnux32-ar
/usr/x86_64-linux-gnux32/bin/../../bin/x86_64-linux-gnux32-ar