these 2 derivations will be built:
  /nix/store/r656dnh9ih8zghf48nmhqva4hw71dkrl-flake-inputs.drv
  /nix/store/4b00h5gy72iqadd92c4h4msr1abp2drc-check-flake-inputs.drv
building '/nix/store/r656dnh9ih8zghf48nmhqva4hw71dkrl-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/r656dnh9ih8zghf48nmhqva4hw71dkrl-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-70d62f00: building r656dnh9ih8zghf48nmhqva4hw71dkrl-flake-inputs.drv
building '/nix/store/4b00h5gy72iqadd92c4h4msr1abp2drc-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/4b00h5gy72iqadd92c4h4msr1abp2drc-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-70d62f00: building 4b00h5gy72iqadd92c4h4msr1abp2drc-check-flake-inputs.drv