these 4 derivations will be built:
  /nix/store/nxfzifsxjf0yxi0amaqn1yddz74baphn-treefmt.toml.drv
  /nix/store/qashqm0sav2hgzig6bjnvissj17g1png-treefmt.toml.drv
  /nix/store/nn0iasrx39j50w09x9xbislj0kbac0p6-examples.drv
  /nix/store/mhj1mm6v5khkm78c9x208czk9bkxxh94-test-examples.drv