these 2 derivations will be built:
  /nix/store/p9ppqrx48d3rqdps5bfpax1cjirlgib8-flake-inputs.drv
  /nix/store/v427xr08a3fwfydp8xip8rk06x2majg1-check-flake-inputs.drv
building '/nix/store/p9ppqrx48d3rqdps5bfpax1cjirlgib8-flake-inputs.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=22&system=aarch64-darwin'
building '/nix/store/p9ppqrx48d3rqdps5bfpax1cjirlgib8-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building p9ppqrx48d3rqdps5bfpax1cjirlgib8-flake-inputs.drv
building '/nix/store/v427xr08a3fwfydp8xip8rk06x2majg1-check-flake-inputs.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=22&system=aarch64-darwin'
building '/nix/store/v427xr08a3fwfydp8xip8rk06x2majg1-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building v427xr08a3fwfydp8xip8rk06x2majg1-check-flake-inputs.drv
could not copy /nix/store/aazcgiwv16fsaaqp18436ihbnpg5qpp2-check-flake-inputs: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:65.21.215.17:50051: tcp handshaker shutdown
error: some outputs are unexpectedly invalid