these 3 derivations will be built:
  /nix/store/4b3ncaykxgjr1xpd34f5rmyivbr5ppmh-jcode-0.90.0-vendor.drv
  /nix/store/4jns54r87cp9qrmz6dxpv4q2wgzd4jl0-jcode-0.90.0.drv
  /nix/store/2csdgb2dsxb9saaila5kay38rxpqwf8v-check-jcode.drv