this derivation will be built: /nix/store/hvsf0dfily2n8rhdxa58abfh23cq4nc8-bcachefs-module-7.0.0-39-generic.drv building '/nix/store/hvsf0dfily2n8rhdxa58abfh23cq4nc8-bcachefs-module-7.0.0-39-generic.drv'...