this derivation will be built:
  /nix/store/jjay4acs963dhj7cqak8j6if9zcava4n-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/jjay4acs963dhj7cqak8j6if9zcava4n-bcachefs-module-7.0.0-28-generic.drv'...