this derivation will be built:
  /nix/store/lprf38l4h2hyr7yq8x3gr46i0sfykyf7-treefmt-check.drv
building '/nix/store/lprf38l4h2hyr7yq8x3gr46i0sfykyf7-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=21&system=aarch64-darwin'
building '/nix/store/lprf38l4h2hyr7yq8x3gr46i0sfykyf7-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> mac02: building lprf38l4h2hyr7yq8x3gr46i0sfykyf7-treefmt-check.drv
treefmt-check> traversed 554 files
treefmt-check> emitted 375 files for processing
treefmt-check> formatted 375 files (0 changed) in 1.783s
could not copy /nix/store/sjrgcljq15sbs5q3pq68n36myql6sl9f-treefmt-check: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.2:50051: tcp handshaker shutdown
error: some outputs are unexpectedly invalid