this derivation will be built:
  /nix/store/2jn9wbhwbdcxp6kbcj3sqbidw6nbidal-treefmt-check.drv
building '/nix/store/2jn9wbhwbdcxp6kbcj3sqbidw6nbidal-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=20&system=aarch64-darwin'
building '/nix/store/2jn9wbhwbdcxp6kbcj3sqbidw6nbidal-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> mac02: building 2jn9wbhwbdcxp6kbcj3sqbidw6nbidal-treefmt-check.drv
treefmt-check> traversed 555 files
treefmt-check> emitted 374 files for processing
treefmt-check> formatted 374 files (0 changed) in 1.853s
could not copy /nix/store/svly0pcqqwj0vs0wlpb13zwd1fvyninf-treefmt-check: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:65.21.215.17:50051: connection attempt timed out before receiving SETTINGS frame
error: some outputs are unexpectedly invalid