this derivation will be built:
  /nix/store/r7dhndfm5vbs185n52sp7w8cyhqr0j29-bcachefs-module-7.0.0-27-generic.drv
building '/nix/store/r7dhndfm5vbs185n52sp7w8cyhqr0j29-bcachefs-module-7.0.0-27-generic.drv'...