these 2 derivations will be built:
  /nix/store/kgghgdsmzv843j1hz38g03iggv70kgzj-niks3-tests-1.15.0.drv
  /nix/store/0rs6i61pyipqsk06mq8j2l3dkymwwd8b-niks3-go-unit-tests.drv