this derivation will be built:
  /nix/store/rk5gfb766k4ja06pf3cp7839wjyfsjvs-treefmt-check.drv
building '/nix/store/rk5gfb766k4ja06pf3cp7839wjyfsjvs-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=20&system=aarch64-linux'
building '/nix/store/rk5gfb766k4ja06pf3cp7839wjyfsjvs-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> elastic-arm-83f6cd49: building rk5gfb766k4ja06pf3cp7839wjyfsjvs-treefmt-check.drv
treefmt-check> traversed 532 files
treefmt-check> emitted 362 files for processing
treefmt-check> formatted 362 files (0 changed) in 5.415s

upload niks3: ok