this derivation will be built:
  /nix/store/k64wy4c1v1k446k50r2n2s2f1bzjvkx7-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/k64wy4c1v1k446k50r2n2s2f1bzjvkx7-bcachefs-module-7.0.0-30-generic.drv'...