this derivation will be built:
  /nix/store/y5lq0acs88gczdcb5b0b99p2vl3wsd5q-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/y5lq0acs88gczdcb5b0b99p2vl3wsd5q-bcachefs-module-7.0.0-31-generic.drv'...