these 5 derivations will be built:
  /nix/store/9vqzk96ipcaxf7650r26ryw7bq966g59-source.drv
  /nix/store/9vs85dbdb2i62bjjn61n2n4bnnqb4qch-jcode-0.99.0-vendor-staging.drv
  /nix/store/r63i86xm3p3v0nvgzi13ajkdz5qk2fsb-jcode-0.99.0-vendor.drv
  /nix/store/h48zms0zvyhy88qwga0f2vjzcqain5cm-jcode-0.99.0.drv
  /nix/store/ksv1clfzrl7d258nh5vrcqp7kjjbfban-check-jcode.drv