$ git clone -n https://src.fedoraproject.org/rpms/rust-constant_time_eq.git /var/lib/mock/f38-build-side-42-init-devel-433485-18803/root/chroot_tmpdir/scmroot/rust-constant_time_eq
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-433485-18803/root/chroot_tmpdir/scmroot/rust-constant_time_eq'...
$ git reset --hard b4cb75d3a6aaf02cd27668d875f2059aee431778
HEAD is now at b4cb75d Update to version 0.2.5; Fixes RHBZ#2177467