these 2 derivations will be built:
  /nix/store/9rcnyswzmvkyspjasxpfjnm28yq3nydx-flake-inputs.drv
  /nix/store/4ck8qrp4qb4vlyyj1kv61h3zmpl4vv9q-check-flake-inputs.drv
building '/nix/store/9rcnyswzmvkyspjasxpfjnm28yq3nydx-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/9rcnyswzmvkyspjasxpfjnm28yq3nydx-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-263f833f: building 9rcnyswzmvkyspjasxpfjnm28yq3nydx-flake-inputs.drv
building '/nix/store/4ck8qrp4qb4vlyyj1kv61h3zmpl4vv9q-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/4ck8qrp4qb4vlyyj1kv61h3zmpl4vv9q-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-263f833f: building 4ck8qrp4qb4vlyyj1kv61h3zmpl4vv9q-check-flake-inputs.drv