this derivation will be built:
  /nix/store/fckl9cmcm5jj98af4dkvblrjlahqrwpm-treefmt-check.drv
building '/nix/store/fckl9cmcm5jj98af4dkvblrjlahqrwpm-treefmt-check.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/fckl9cmcm5jj98af4dkvblrjlahqrwpm-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> elastic-arm-3e34f16b: building fckl9cmcm5jj98af4dkvblrjlahqrwpm-treefmt-check.drv
treefmt-check> traversed 563 files
treefmt-check> emitted 378 files for processing
treefmt-check> formatted 378 files (0 changed) in 4.295s