this derivation will be built: /nix/store/0mxgakdcqry3y457cl194yshmksk8pg4-bcachefs-module-7.0.0-29-generic.drv building '/nix/store/0mxgakdcqry3y457cl194yshmksk8pg4-bcachefs-module-7.0.0-29-generic.drv'...