this derivation will be built:
  /nix/store/x7r35709dll2s8cbj4im8ddfv2lpd71v-bcachefs-module-7.0.0-26-generic.drv
building '/nix/store/x7r35709dll2s8cbj4im8ddfv2lpd71v-bcachefs-module-7.0.0-26-generic.drv'...