Computing Guix derivation for 'x86_64-linux'...  
The following derivation will be built:
   /gnu/store/307c6dz5i5q0j43718dvg4zmj51garpw-profile.drv
The following profile hook will be built:
   /gnu/store/ax2aijv74k675gymna8m8gdw9fzzim90-guix-package-cache.drv
building path(s) `/gnu/store/0as65pwz7ya72fig880xagsdvkj9rnf1-guix-package-cache'
(repl-version 0 1 1)
Generating package cache for '/gnu/store/7a6553hd3zn8j30jarr1p46i41rhfvq5-profile'...
(values (value "/gnu/store/0as65pwz7ya72fig880xagsdvkj9rnf1-guix-package-cache/lib/guix/package.cache"))
building path(s) `/gnu/store/ka29r2rz3jzdhh6cxbpi1wcycd4jrfx5-profile'
2021-10-17T23:00:54 Registering builds for evaluation 4.