these 5 derivations will be built:
  /nix/store/g7yyxixpsgv3sjijzkn5w73y4rkf1j3q-source.drv
  /nix/store/qisharbkgsvgdzrw13yja3bdqhwkqsyi-jcode-0.99.0-vendor-staging.drv
  /nix/store/7ibn0qb518hfbrjxqnvbwfwiqcgzjyri-jcode-0.99.0-vendor.drv
  /nix/store/wfskpdgb9ibjyknzcls19wbypqh8issy-jcode-0.99.0.drv
  /nix/store/824fcxl858ay36y2bzxirsiv6qa6943k-check-jcode.drv