these 3 derivations will be built:
  /nix/store/xxxx2x0wk47rq5rcvixbl7nmay5yl3vg-jcode-0.90.0-vendor.drv
  /nix/store/891xcswfgs6i41xcpmlmb2mmqvz7lnq9-jcode-0.90.0.drv
  /nix/store/vjr16lxd5jajjq4ncs2y6f7b1vvlxdkm-check-jcode.drv