$ git clone -n https://src.fedoraproject.org/rpms/rust-libgit2-sys0.14.git /var/lib/mock/f40-build-2660827-66918/root/chroot_tmpdir/scmroot/rust-libgit2-sys0.14
Cloning into '/var/lib/mock/f40-build-2660827-66918/root/chroot_tmpdir/scmroot/rust-libgit2-sys0.14'...
$ git fetch origin 45811b9138082dec4444cc5046bdfd3ada79787c:KOJI_FETCH_HEAD
fatal: unable to access 'https://src.fedoraproject.org/rpms/rust-libgit2-sys0.14.git/': Transferred a partial file
$ git reset --hard 45811b9138082dec4444cc5046bdfd3ada79787c
HEAD is now at 45811b9 compat package no longer needed