this derivation will be built:
  /nix/store/q2ra3w9dwmcm1x02lzif1c8z8fppzn1i-check-zcode.drv
building '/nix/store/q2ra3w9dwmcm1x02lzif1c8z8fppzn1i-check-zcode.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/q2ra3w9dwmcm1x02lzif1c8z8fppzn1i-check-zcode.drv' on farm.numtide.com:50051
check-zcode> elastic-arm-bb9fb202: building q2ra3w9dwmcm1x02lzif1c8z8fppzn1i-check-zcode.drv
could not copy /nix/store/ws498dljcz61wllam9srr6x32902amay-check-zcode: error: gRPC FetchNars failed: upstream connect error or disconnect/reset before headers. reset reason: connection termination
error: some outputs are unexpectedly invalid