these 2 derivations will be built:
  /nix/store/3h5vd0yw3j8rwyhk61f8za96f2dkx5b5-iets-0.1.0.drv
  /nix/store/xj4hskpwbxbx7gqn2q0x62g7s7ycgh8s-iets-linttest.drv