this derivation will be built:
  /nix/store/kb18bfwhngbzbj33qrw9zw2crgnnjgzf-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/kb18bfwhngbzbj33qrw9zw2crgnnjgzf-bcachefs-module-7.0.0-28-generic.drv'...