$ git clone -n https://src.fedoraproject.org/rpms/rust-coreos-installer.git /var/lib/mock/f40-build-766802-124348/root/chroot_tmpdir/scmroot/rust-coreos-installer
Cloning into '/var/lib/mock/f40-build-766802-124348/root/chroot_tmpdir/scmroot/rust-coreos-installer'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/rust-coreos-installer.git/': Error in the HTTP2 framing layer