these 2 derivations will be built:
  /nix/store/yf72qi5i9769b4qq5w7idwxrg0gbm341-herdr-core-0.1.21.drv
  /nix/store/d17jrdfxaz164nlqlyp5hic5ydgpfvsh-check-herdr-core.drv
building '/nix/store/d17jrdfxaz164nlqlyp5hic5ydgpfvsh-check-herdr-core.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&restart-grace=900&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/d17jrdfxaz164nlqlyp5hic5ydgpfvsh-check-herdr-core.drv' on farm.numtide.com:50051
check-herdr-core> elastic-arm-4294fab9: building d17jrdfxaz164nlqlyp5hic5ydgpfvsh-check-herdr-core.drv