this derivation will be built:
  /nix/store/db7bn11rl0q8p8f8szdf13klhhadln7i-interpolate-conformance.drv
cannot build 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=20&system=aarch64-darwin': error: gRPC StoreInfo on 'farm.numtide.com:50051' failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:65.21.215.17:50051: handshaker shutdown
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
could not copy /nix/store/92ig0fmyfil7gxxbi4cvsfk71b5rsbiz-interpolate-conformance: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:65.21.215.17:50051: handshaker shutdown
error: some outputs are unexpectedly invalid