these 3 derivations will be built:
  /nix/store/757n4wpqkh5pp35qv957729xyhv75874-jcode-0.99.0-vendor.drv
  /nix/store/cmf91p7rcl0fflq12rfbj19cjll6x9fw-jcode-0.99.0.drv
  /nix/store/cmi3jdzafchcpld7ici19b7h3ir3dpkr-check-jcode.drv