this derivation will be built:
  /nix/store/2iffpxy9ykiaaiiymcc6s175fh317l1d-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/2iffpxy9ykiaaiiymcc6s175fh317l1d-bcachefs-module-7.0.0-31-generic.drv'...