these 2 derivations will be built:
  /nix/store/2mmcr4m65yzzi7cnf96v7c196nc1f5c7-flake-inputs.drv
  /nix/store/01kywyfcg7i7f46924jv6qf03wdqyjvb-check-flake-inputs.drv
building '/nix/store/2mmcr4m65yzzi7cnf96v7c196nc1f5c7-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=21&system=aarch64-darwin'
building '/nix/store/2mmcr4m65yzzi7cnf96v7c196nc1f5c7-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building 2mmcr4m65yzzi7cnf96v7c196nc1f5c7-flake-inputs.drv
building '/nix/store/01kywyfcg7i7f46924jv6qf03wdqyjvb-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/01kywyfcg7i7f46924jv6qf03wdqyjvb-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building 01kywyfcg7i7f46924jv6qf03wdqyjvb-check-flake-inputs.drv
could not copy /nix/store/g8l6bzka74qi0im8mwn1cylpbbkhxlph-check-flake-inputs: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.2:50051: handshaker shutdown
error: some outputs are unexpectedly invalid