this derivation will be built:
  /nix/store/b9q4n89ny64mnp3a4pfvb2gv920ahw6z-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/b9q4n89ny64mnp3a4pfvb2gv920ahw6z-bcachefs-module-7.0.0-38-generic.drv'...