An attempt to build qemu failed on guix (GNU Guix) 0.14.0.2455-26737 with ...

phase `build' failed after 6.9 seconds
note: keeping build directory `/tmp/guix-build-gst-plugins-ugly-1.12.4.drv-3'
builder for `/gnu/store/gj2ivcxyh8ksjl6rw70dx1d813vbfj46-gst-plugins-ugly-1.12.4.drv' failed with exit code 1
note: keeping build directory `/tmp/guix-build-gst-libav-1.12.4.drv-0'
cannot build derivation `/gnu/store/rsz1v5bkwwj5arb21gs9h1ifl82cirjb-spice-0.14.0.drv': 1 dependencies couldn't be built
cannot build derivation `/gnu/store/sqh82dxywml5w7hv2ifdck6c8spkjqhg-qemu-2.11.1.drv': 1 dependencies couldn't be built
guix system: error: build failed: build of `/gnu/store/sqh82dxywml5w7hv2ifdck6c8spkjqhg-qemu-2.11.1.drv' failed

... larger log extract attached.

TIA - George