$ git clone -n https://src.fedoraproject.org/rpms/rust-libcst_derive.git /var/lib/mock/f38-build-side-43-rust-devel-1409243-31395/root/chroot_tmpdir/scmroot/rust-libcst_derive
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1409243-31395/root/chroot_tmpdir/scmroot/rust-libcst_derive'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/rust-libcst_derive.git/': Error in the HTTP2 framing layer