this derivation will be built:
  /nix/store/bchr6zwq9wwp5rr2fp593gxvds84nafx-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/bchr6zwq9wwp5rr2fp593gxvds84nafx-bcachefs-module-7.0.0-31-generic.drv'...