this derivation will be built:
  /nix/store/lqcw619sfwvpz5hg6b6wjbsi055cgkj7-iets-version.drv
building '/nix/store/lqcw619sfwvpz5hg6b6wjbsi055cgkj7-iets-version.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/lqcw619sfwvpz5hg6b6wjbsi055cgkj7-iets-version.drv' on farm.numtide.com:50051
iets-version> elastic-arm-23d67df9: building lqcw619sfwvpz5hg6b6wjbsi055cgkj7-iets-version.drv