these 2 derivations will be built:
  /nix/store/m31vqrmr2f0yvj54fyz3jxclmn0impjd-iets-0.2.0.drv
  /nix/store/0s2jq8r1q2ragxijnqlbg6pzz3bhl386-iets-classic-2.34.9.drv
building '/nix/store/0s2jq8r1q2ragxijnqlbg6pzz3bhl386-iets-classic-2.34.9.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/0s2jq8r1q2ragxijnqlbg6pzz3bhl386-iets-classic-2.34.9.drv' on farm.numtide.com:50051
iets-classic-2.34.9> elastic-arm-846f0e84: building 0s2jq8r1q2ragxijnqlbg6pzz3bhl386-iets-classic-2.34.9.drv