this derivation will be built:
  /nix/store/x76agdka22vg0wbb6ih0syfs2in1nrq8-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/x76agdka22vg0wbb6ih0syfs2in1nrq8-bcachefs-module-7.0.0-30-generic.drv'...