these 2 derivations will be built:
  /nix/store/5dng5bib4rrcfnkdkrn2i8kb4hix0xj1-iets-0.1.0.drv
  /nix/store/16915j0fwa3f2w7c8zwpga6fpnxm8kx7-iets-linttest.drv