this derivation will be built:
  /nix/store/9kbx3fqcwhv2j3qmh8xs4z7n90l6didh-treefmt-check.drv
building '/nix/store/9kbx3fqcwhv2j3qmh8xs4z7n90l6didh-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/9kbx3fqcwhv2j3qmh8xs4z7n90l6didh-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> bld3: building 9kbx3fqcwhv2j3qmh8xs4z7n90l6didh-treefmt-check.drv
treefmt-check> traversed 526 files
treefmt-check> emitted 359 files for processing
treefmt-check> formatted 359 files (0 changed) in 5.677s

upload niks3: ok