these 2 derivations will be built:
  /nix/store/0wmqyhcw5gmn5ad47jyd59aq9ryffm58-nixos-test-driver-data-mesher.drv
  /nix/store/6nvz30g6s2pfwkp5asirj4dydi4phk3p-container-test-run-data-mesher.drv