this derivation will be built:
  /nix/store/l96wbd9bpx61rlsh2z987ax087q61m78-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/l96wbd9bpx61rlsh2z987ax087q61m78-bcachefs-module-7.0.0-30-generic.drv'...