this derivation will be built: /nix/store/674gr9lar3j70hn34dsw71jspbypk421-bcachefs-module-7.0.0-30-generic.drv building '/nix/store/674gr9lar3j70hn34dsw71jspbypk421-bcachefs-module-7.0.0-30-generic.drv'...