this derivation will be built:
  /nix/store/ic51k4kq6bqxg4lw5lzrmrl16vv5d2nz-cargo-fmt-check.drv
building '/nix/store/ic51k4kq6bqxg4lw5lzrmrl16vv5d2nz-cargo-fmt-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/ic51k4kq6bqxg4lw5lzrmrl16vv5d2nz-cargo-fmt-check.drv' on farm.numtide.com:50051
cargo-fmt-check> mac02: building ic51k4kq6bqxg4lw5lzrmrl16vv5d2nz-cargo-fmt-check.drv