this derivation will be built:
  /nix/store/pg9wnz3hdf6x84fji6q4w37lc1in2gfn-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/pg9wnz3hdf6x84fji6q4w37lc1in2gfn-bcachefs-module-7.0.0-38-generic.drv'...