these 2 derivations will be built:
  /nix/store/32knzz1hnvj0xl29imajfnl9snzjqkwi-niks3-tests-1.4.0.drv
  /nix/store/8krfmp7nq3fg5sj01cg11sanav9yb30r-niks3-go-unit-tests.drv