these 2 derivations will be built:
  /nix/store/pkrscfwwy7i4lwb28jnck89qz4liwmb9-flake-inputs.drv
  /nix/store/78aw6nm1nmllfaiqfwfsjrgicv4x8l84-check-flake-inputs.drv
building '/nix/store/pkrscfwwy7i4lwb28jnck89qz4liwmb9-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/pkrscfwwy7i4lwb28jnck89qz4liwmb9-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-23d67df9: building pkrscfwwy7i4lwb28jnck89qz4liwmb9-flake-inputs.drv
building '/nix/store/78aw6nm1nmllfaiqfwfsjrgicv4x8l84-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/78aw6nm1nmllfaiqfwfsjrgicv4x8l84-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-23d67df9: building 78aw6nm1nmllfaiqfwfsjrgicv4x8l84-check-flake-inputs.drv