this derivation will be built:
  /nix/store/k9wzcavgsk0c15rpcl26k7yimv3g9yfn-treefmt-check.drv
building '/nix/store/k9wzcavgsk0c15rpcl26k7yimv3g9yfn-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/k9wzcavgsk0c15rpcl26k7yimv3g9yfn-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> elastic-arm-976bb8e2: building k9wzcavgsk0c15rpcl26k7yimv3g9yfn-treefmt-check.drv
treefmt-check> treefmt v2.6.0traversed 411 files
treefmt-check> emitted 148 files for processing
treefmt-check> formatted 148 files (1 changed) in 819ms

upload niks3: ok