this derivation will be built:
  /nix/store/3yvwcx79jxaswpgawh3d80w6v30jy36n-treefmt-check.drv
building '/nix/store/3yvwcx79jxaswpgawh3d80w6v30jy36n-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-linux'
building '/nix/store/3yvwcx79jxaswpgawh3d80w6v30jy36n-treefmt-check.drv' on farm.numtide.com:50051
treefmt-check> elastic-arm-04535f05: building 3yvwcx79jxaswpgawh3d80w6v30jy36n-treefmt-check.drv
treefmt-check> traversed 555 files
treefmt-check> emitted 374 files for processing
treefmt-check> formatted 374 files (0 changed) in 29.991s
could not copy /nix/store/jxldbp6dw2imvxi6rjhxpsgd17a8d6db-treefmt-check: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv6:%5B2a01:4f9:3071:1fc8::1%5D:50051: connection attempt timed out before receiving SETTINGS frame
error: some outputs are unexpectedly invalid