this derivation will be built:
  /nix/store/nhig9xkpq7fywqdzap4xr9ap6qg7fvyw-treefmt-check.drv
building '/nix/store/nhig9xkpq7fywqdzap4xr9ap6qg7fvyw-treefmt-check.drv'
treefmt-check> tribuchet: building on mac02