these 3 derivations will be built:
  /nix/store/gzz0f8m2d45rwx9cnkll9rys6nc55ina-treefmt.toml.drv
  /nix/store/rhzi4pqjl5gzrwnsnngkqj2ndyn5lm1m-treefmt.drv
  /nix/store/20bycdhvxw0g2148i53xr4hddfqsaivk-treefmt-check.drv