this derivation will be built: /nix/store/vknm2rbnk6mjvaxiaxqkjyaajmz1ziiw-bcachefs-module-7.0.0-39-generic.drv building '/nix/store/vknm2rbnk6mjvaxiaxqkjyaajmz1ziiw-bcachefs-module-7.0.0-39-generic.drv'...