these 3 derivations will be built:
  /nix/store/clfk71ivjm95mglnl29jkzznklm2rhv7-eca-native-linux-amd64.zip.drv
  /nix/store/333bxg4hacgch8d5vckzi9myhrglswvv-eca-0.166.0.drv
  /nix/store/ka6rm7ch2ng5akhp8z6l1p4cp6s453dg-check-eca.drv