this derivation will be built:
  /nix/store/5hlwwzl9bdpr7581azck1myjd5p3157s-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/5hlwwzl9bdpr7581azck1myjd5p3157s-bcachefs-module-7.0.0-39-generic.drv'...