these 2 derivations will be built:
  /nix/store/mcghn0gl7bpknza91z2gkc856p6m6j47-niks3-tests-1.15.0.drv
  /nix/store/08jgmapgvwcy4mq75yf5wkhmgk0wykd4-niks3-go-unit-tests.drv