I tried again just now, and: successfully built /gnu/store/pmq2jv9j9snmyzbdngmklghn9bpzrxig-kodi-18.2.drv /gnu/store/qzc0j7v4b4ylgqrk5n8h2dj5q5bp8qbf-kodi-18.2
It's definitely failed before a bunch of times when I've tried to do `guix upgrade`, so not sure what to make of it really. -- Josh Holland