this derivation will be built:
  /nix/store/cw64bhq35vzz2312x9fnfv6jmcl20v1a-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/cw64bhq35vzz2312x9fnfv6jmcl20v1a-bcachefs-module-7.0.0-28-generic.drv'...