these 2 derivations will be built:
  /nix/store/kifqvw8rl8zh7fx7qpgclrp3zni2zy45-niks3-tests-1.4.0.drv
  /nix/store/65h3dxw8wz4kxrw6pdjg40igs12393xz-niks3-go-unit-tests.drv