these 5 derivations will be built:
  /nix/store/ma63ak054q0vq9nk1b2x6r2hc5h448lx-Cargo.toml.drv
  /nix/store/5pphjhcjlsmjg08cycdkh5mairys1lf3-source.drv
  /nix/store/91wrjq116d1jwvdfpis5563q3alkrwvh-horae-deps-0.1.0.drv
  /nix/store/rlnagzrrdkmmkffahkkr3vhg7zj7pfp8-horae-0.1.0.drv
  /nix/store/5cm6y0q21212w6fxzfk6wbf5zmci4l3w-horae-browser-checks.drv