this derivation will be built:
  /nix/store/rz649wl5jrlakq2cmx1h77bx46b7hr4j-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/rz649wl5jrlakq2cmx1h77bx46b7hr4j-bcachefs-module-7.0.0-30-generic.drv'...