this derivation will be built:
  /nix/store/iaf2x2paf73965g3r4851f2msp6jrcjn-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/iaf2x2paf73965g3r4851f2msp6jrcjn-bcachefs-module-7.0.0-29-generic.drv'...