this derivation will be built:
  /nix/store/ra4ypjix0hnkn46cz5yaan3a171cs5v4-treefmt-check.drv
building '/nix/store/ra4ypjix0hnkn46cz5yaan3a171cs5v4-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/ra4ypjix0hnkn46cz5yaan3a171cs5v4-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> elastic-arm-b6a0b722: building ra4ypjix0hnkn46cz5yaan3a171cs5v4-treefmt-check.drv
treefmt-check> treefmt v2.5.0traversed 1670 files
treefmt-check> emitted 428 files for processing
treefmt-check> formatted 428 files (0 changed) in 4.474s

upload niks3: ok