Fix build against Nix master

Also, remove support in hydra-eval-jobs for multiple jobset input alternatives. The web interface hasn't supported this in a long time. Thus we can use the regular "–arg" handler.

Created by  Eelco Dolstra  on October 26, 2017
STZE4KKRL2AGCPP2FOMBNZHJTRTKJQZSEKALWEV6FK5BII6H7EDAC
Dependencies
In channels
main
Change contents