$ git clone -n https://src.fedoraproject.org/rpms/rust-libadwaita-sys0.3.git /var/lib/mock/f38-build-side-42-init-devel-639826-26389/root/chroot_tmpdir/scmroot/rust-libadwaita-sys0.3
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-639826-26389/root/chroot_tmpdir/scmroot/rust-libadwaita-sys0.3'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/rust-libadwaita-sys0.3.git/': The requested URL returned error: 504