this derivation will be built:
  /nix/store/5nm6vx9dhs3rrngjizm3di7807kvddps-treefmt-check.drv
building '/nix/store/5nm6vx9dhs3rrngjizm3di7807kvddps-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/5nm6vx9dhs3rrngjizm3di7807kvddps-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> bld4: building 5nm6vx9dhs3rrngjizm3di7807kvddps-treefmt-check.drv
treefmt-check> traversed 519 files
treefmt-check> emitted 355 files for processing
treefmt-check> formatted 355 files (0 changed) in 4.998s

upload niks3: ok