this derivation will be built:
  /nix/store/k3qc3l901s1rj2ara5lm8am0y6w49kns-treefmt-check.drv
building '/nix/store/k3qc3l901s1rj2ara5lm8am0y6w49kns-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=23&system=aarch64-linux'
building '/nix/store/k3qc3l901s1rj2ara5lm8am0y6w49kns-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> elastic-arm-a82da1c7: building k3qc3l901s1rj2ara5lm8am0y6w49kns-treefmt-check.drv
treefmt-check> traversed 532 files
treefmt-check> emitted 363 files for processing
treefmt-check> formatted 363 files (0 changed) in 5.76s

upload niks3: ok