$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_cat.git /var/lib/mock/f40-build-704011-12986/root/chroot_tmpdir/scmroot/rust-uu_cat
Cloning into '/var/lib/mock/f40-build-704011-12986/root/chroot_tmpdir/scmroot/rust-uu_cat'...
$ git fetch origin 63076b4d9f2af40aaa13b83703c6178943ae2320:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/rust-uu_cat.git/': OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to src.fedoraproject.org:443 
$ git reset --hard 63076b4d9f2af40aaa13b83703c6178943ae2320
HEAD is now at 63076b4 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces