[Libguestfs] [virt-builder] symbol lookup error: /lib64/libgnutls.so.28 - undefined symbol: nettle_secp_256r1

Running virt-builder in a guest Fedora-20 guest hypervisor w/ Rawhide Kernel, throws the below: $ virt-builder fedora-20 --format qcow2 --size 20G virt-builder: symbol lookup error: /lib64/libgnutls.so.28: undefined symbol: nettle_secp_256r1 Version on L1 (guest hypervisor) -------------------------------- $ uname -r; rpm -q libvirt-daemon-kvm qemu-system-x86 \ libguestfs gnutls 3.14.0-0.rc0.git9.1.fc21.x86_64 libvirt-daemon-kvm-1.2.1-1.fc21.x86_64 qemu-system-x86-1.7.0-4.fc21.x86_64 libguestfs-1.25.29-1.fc21.x86_64 gnutls-3.2.8-1.fc21.x86_64 And, that's the latest gnutls available on Fedora Rawhide: $ koji latest-build rawhide gnutls | awk '{print $1}' Build ---------------------------------------- gnutls-3.2.8-1.fc21 Version on L0 (Bare metal) -------------------------- $ uname -r; rpm -q libvirt-daemon-kvm qemu-system-x86 \ libguestfs 3.12.8-300.fc20.x86_64 libvirt-daemon-kvm-1.2.1-1.fc21.x86_64 qemu-system-x86-1.7.0-4.fc21.x86_64 libguestfs-1.25.29-1.fc21.x86_64 -- /kashyap