this derivation will be built:
  /nix/store/1j7s75fzh3d23bhhg3ag00mb5b4jzczl-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/1j7s75fzh3d23bhhg3ag00mb5b4jzczl-bcachefs-module-7.0.0-39-generic.drv'...