these 5 derivations will be built:
  /nix/store/whg39kfbssrnh8wc4h8adn475pqarjh5-source.drv
  /nix/store/v2k0rr40nd2w9c1gldx6zx6bjbv1zl6p-jcode-0.87.0-vendor-staging.drv
  /nix/store/qvawv4ff649910jhf8vddf57x5jxp94k-jcode-0.87.0-vendor.drv
  /nix/store/fhba56l99f021css0xkz2100hg4db60z-jcode-0.87.0.drv
  /nix/store/yy3f26cky5234ng80zf7ixn4bq6sy6l7-check-jcode.drv