these 2 derivations will be built:
  /nix/store/yivqgw2rz2p79bww1ask9mnsgxqh6949-niks3-tests-1.15.0.drv
  /nix/store/4g4cm8hq6qnq5ab1j567l13svm1wpjhb-niks3-go-unit-tests.drv