these 2 derivations will be built:
  /nix/store/idgbk8hwmgqmaxmn43wq0m8ybwzx1yly-dsh-0.2.0-rc.2.drv
  /nix/store/y550a7c780hb2yq6qz91i0ci04snagkb-check-dsh.drv