this derivation will be built:
  /nix/store/1kbsp64svljhwi6zbp1c7mvnm84h5fzn-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/1kbsp64svljhwi6zbp1c7mvnm84h5fzn-bcachefs-module-7.0.0-28-generic.drv'...