this derivation will be built:
  /nix/store/zas5vw6345x17qyn5wc9h0g1pgi1ksqd-iets-classic-2.34.9.drv
building '/nix/store/zas5vw6345x17qyn5wc9h0g1pgi1ksqd-iets-classic-2.34.9.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/zas5vw6345x17qyn5wc9h0g1pgi1ksqd-iets-classic-2.34.9.drv' on farm.numtide.com:50051
iets-classic-2.34.9> elastic-arm-7436929c: building zas5vw6345x17qyn5wc9h0g1pgi1ksqd-iets-classic-2.34.9.drv