these 2 derivations will be built:
  /nix/store/4bihgyhi2cw96b3n15cxr4pbks2lpcpy-niks3-tests-1.4.0.drv
  /nix/store/jawml195gh8wzs7yhxb5ha7n2c2g2w89-niks3-go-unit-tests.drv