this derivation will be built:
  /nix/store/w6nxvjvgqqixggi5zk014a9zdn2ma9k9-treefmt-check.drv
building '/nix/store/w6nxvjvgqqixggi5zk014a9zdn2ma9k9-treefmt-check.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=21&system=aarch64-linux'
building '/nix/store/w6nxvjvgqqixggi5zk014a9zdn2ma9k9-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> elastic-arm-caf92e2d: building w6nxvjvgqqixggi5zk014a9zdn2ma9k9-treefmt-check.drv
treefmt-check> traversed 532 files
treefmt-check> emitted 363 files for processing
treefmt-check> formatted 363 files (0 changed) in 8.894s

upload niks3: ok