this derivation will be built:
  /nix/store/2j3walvdpab923d8avc1ssczxp1rlpww-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/2j3walvdpab923d8avc1ssczxp1rlpww-bcachefs-module-7.0.0-34-generic.drv'...