this derivation will be built:
  /nix/store/ld787gsc2lmab2kbif45n5q451lni9vp-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/ld787gsc2lmab2kbif45n5q451lni9vp-bcachefs-module-7.0.0-28-generic.drv'...