this derivation will be built:
  /nix/store/b0q405d2lg09gq8hda8cjr0l8nig3qbb-treefmt-check.drv
building '/nix/store/b0q405d2lg09gq8hda8cjr0l8nig3qbb-treefmt-check.drv'
treefmt-check> tribuchet: building on jamie