these 2 derivations will be built:
  /nix/store/x2kpd2n1xjvdqbvgn9943x68kq0dqdxp-flake-inputs.drv
  /nix/store/hxpc2v1pl1lvq50i8ak78h94374v5zsi-check-flake-inputs.drv
building '/nix/store/x2kpd2n1xjvdqbvgn9943x68kq0dqdxp-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/x2kpd2n1xjvdqbvgn9943x68kq0dqdxp-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-e7e30bb6: building x2kpd2n1xjvdqbvgn9943x68kq0dqdxp-flake-inputs.drv
building '/nix/store/hxpc2v1pl1lvq50i8ak78h94374v5zsi-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/hxpc2v1pl1lvq50i8ak78h94374v5zsi-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-70d62f00: building hxpc2v1pl1lvq50i8ak78h94374v5zsi-check-flake-inputs.drv