this derivation will be built: /nix/store/61pjq1f4hzr2xjic1ki357pdib0xijvh-bcachefs-module-7.0.0-39-generic.drv building '/nix/store/61pjq1f4hzr2xjic1ki357pdib0xijvh-bcachefs-module-7.0.0-39-generic.drv'...