this derivation will be built:
  /nix/store/fjp39dms0p5xb64d7pxmlk6xa4dz68d6-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/fjp39dms0p5xb64d7pxmlk6xa4dz68d6-bcachefs-module-7.0.0-39-generic.drv'...