this derivation will be built:
  /nix/store/k6p0cf3rn82x5p7hzi8h75qwgzll58cl-treefmt-check.drv
building '/nix/store/k6p0cf3rn82x5p7hzi8h75qwgzll58cl-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-darwin'
building '/nix/store/k6p0cf3rn82x5p7hzi8h75qwgzll58cl-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> mac02: building k6p0cf3rn82x5p7hzi8h75qwgzll58cl-treefmt-check.drv
treefmt-check> traversed 551 files
treefmt-check> emitted 373 files for processing
treefmt-check> formatted 373 files (0 changed) in 1.91s

upload niks3: ok