this derivation will be built:
  /nix/store/7kni4afp3g8ig3skj2yjkjq15mv503sd-treefmt-check.drv
building '/nix/store/7kni4afp3g8ig3skj2yjkjq15mv503sd-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/7kni4afp3g8ig3skj2yjkjq15mv503sd-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> elastic-arm-99e59b18: building 7kni4afp3g8ig3skj2yjkjq15mv503sd-treefmt-check.drv
treefmt-check> traversed 540 files
treefmt-check> emitted 368 files for processing
treefmt-check> formatted 368 files (0 changed) in 20.131s

upload niks3: ok