these 2 derivations will be built:
  /nix/store/23hfv4p055la8ni9ip1hl8wzl5jadf68-iets-conformance-adapter.drv
  /nix/store/11ifp9a7773mdgxdvfwxhc0x9n6nj9f8-nix-conformance-iets.drv
building '/nix/store/23hfv4p055la8ni9ip1hl8wzl5jadf68-iets-conformance-adapter.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/23hfv4p055la8ni9ip1hl8wzl5jadf68-iets-conformance-adapter.drv' on farm.numtide.com:50051
iets-conformance-adapter> elastic-arm-23d67df9: building 23hfv4p055la8ni9ip1hl8wzl5jadf68-iets-conformance-adapter.drv
iets-conformance-adapter> structuredAttrs is enabled
building '/nix/store/11ifp9a7773mdgxdvfwxhc0x9n6nj9f8-nix-conformance-iets.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'