this derivation will be built:
  /nix/store/4yqq6yxdr4zc2kiz5np7lkrh2jc2h709-treefmt-check.drv
building '/nix/store/4yqq6yxdr4zc2kiz5np7lkrh2jc2h709-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/4yqq6yxdr4zc2kiz5np7lkrh2jc2h709-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> elastic-arm-d3e3c546: building 4yqq6yxdr4zc2kiz5np7lkrh2jc2h709-treefmt-check.drv
treefmt-check> traversed 532 files
treefmt-check> emitted 363 files for processing
treefmt-check> formatted 363 files (0 changed) in 7.232s

upload niks3: ok