$ git clone -n https://src.fedoraproject.org/rpms/perl-Cache-FastMmap.git /var/lib/mock/f37-build-9666-1624/root/chroot_tmpdir/scmroot/perl-Cache-FastMmap
Cloning into '/var/lib/mock/f37-build-9666-1624/root/chroot_tmpdir/scmroot/perl-Cache-FastMmap'...
error: RPC failed; curl 16 Error in the HTTP2 framing layer
fatal: the remote end hung up unexpectedly