this derivation will be built:
  /nix/store/9l53l998s6yc7wxr7b9kyring7rqw58p-check-hermes-agent.drv
building '/nix/store/9l53l998s6yc7wxr7b9kyring7rqw58p-check-hermes-agent.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/9l53l998s6yc7wxr7b9kyring7rqw58p-check-hermes-agent.drv' on farm.numtide.com:50051
check-hermes-agent> mac02: building 9l53l998s6yc7wxr7b9kyring7rqw58p-check-hermes-agent.drv