these 2 derivations will be built:
  /nix/store/j6wfxmgql2kh1xmdmk99222ks828qqv0-niks3-tests-1.15.0.drv
  /nix/store/m49wvas7x04p0102ks8l6xga183y0494-niks3-go-unit-tests.drv