this derivation will be built:
  /nix/store/f0dqr20c0llk3f7vhirkp3yq0jkmw5x1-treefmt-check.drv
building '/nix/store/f0dqr20c0llk3f7vhirkp3yq0jkmw5x1-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 'f0dqr20c0llk3f7vhirkp3yq0jkmw5x1-treefmt-check.drv' on farm.numtide.com:50051
building 'f0dqr20c0llk3f7vhirkp3yq0jkmw5x1-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> bld4: building f0dqr20c0llk3f7vhirkp3yq0jkmw5x1-treefmt-check.drv
treefmt-check> traversed 517 files
treefmt-check> emitted 354 files for processing
treefmt-check> formatted 354 files (0 changed) in 11.751s

upload niks3: ok