this derivation will be built:
  /nix/store/n09a07wir89pdv6vj4dahmgwxpza5wwh-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/n09a07wir89pdv6vj4dahmgwxpza5wwh-bcachefs-module-7.0.0-39-generic.drv'...