these 2 derivations will be built:
  /nix/store/vmvhdldyk3a63c73j53pbah5505f4ws4-options.json.drv
  /nix/store/8x68xs7q3fnswvrid4gd2gryqm3nmd21-options.md.drv
building '/nix/store/vmvhdldyk3a63c73j53pbah5505f4ws4-options.json.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/vmvhdldyk3a63c73j53pbah5505f4ws4-options.json.drv' on farm.numtide.com:50051
options.json> elastic-arm-4f9c9f84: building vmvhdldyk3a63c73j53pbah5505f4ws4-options.json.drv
building '/nix/store/8x68xs7q3fnswvrid4gd2gryqm3nmd21-options.md.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/8x68xs7q3fnswvrid4gd2gryqm3nmd21-options.md.drv' on farm.numtide.com:50051
options.md> elastic-arm-4f9c9f84: building 8x68xs7q3fnswvrid4gd2gryqm3nmd21-options.md.drv
options.md> structuredAttrs is enabled