these 2 derivations will be built:
  /nix/store/9wlagdah7bb8y2zayr9clanhwdvs3z5f-eca-native-linux-amd64.zip.drv
  /nix/store/rrwpf72n2xx3bbdrwb2cwj2dpbimz8ap-eca-0.155.2.drv