this derivation will be built:
  /nix/store/40i609vql8nl7df1jxgkb4355iqyj3qd-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/40i609vql8nl7df1jxgkb4355iqyj3qd-bcachefs-module-7.0.0-30-generic.drv'...