this derivation will be built:
  /nix/store/ki3a47d7qc76dp2ai14mialmy5n4i04f-treefmt-check.drv
building '/nix/store/ki3a47d7qc76dp2ai14mialmy5n4i04f-treefmt-check.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/ki3a47d7qc76dp2ai14mialmy5n4i04f-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> mac02: building ki3a47d7qc76dp2ai14mialmy5n4i04f-treefmt-check.drv
treefmt-check> traversed 578 files
treefmt-check> emitted 387 files for processing
treefmt-check> formatted 387 files (0 changed) in 2.431s