these 3 derivations will be built:
  /nix/store/pqfs5xlfi7bsybh3s79d6bi5a2fwmm5l-treefmt.toml.drv
  /nix/store/k8nlyqr1cm7p06mqx6xlvvd1gn2dyl3i-treefmt.drv
  /nix/store/pi2fyvb3f1j4a0p8y5157smc9x2j9ygz-treefmt-check.drv