these 3 derivations will be built:
  /nix/store/g6sn14l7zhm93rgmx0gl1yh998nbh8x9-source.drv
  /nix/store/3rj7ldz8y3xy1xr7has78x1jqcw6aiap-plannotator-0.28.58.drv
  /nix/store/zbb67ajxp4id96axwnkm7jnravvsr8cj-check-plannotator.drv