these 3 derivations will be built:
  /nix/store/v8cah5byx0h9j9a02nk7j3mprqp4h11g-iets-0.1.0.drv
  /nix/store/ckn84cml9wsjsmmkhay7n51xgg44msak-iets-conformance-adapter.drv
  /nix/store/1i24s8v66am0b0vn9mvmpx17v11924iv-nix-conformance-iets.drv
building '/nix/store/ckn84cml9wsjsmmkhay7n51xgg44msak-iets-conformance-adapter.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=20&system=aarch64-linux'
building '/nix/store/ckn84cml9wsjsmmkhay7n51xgg44msak-iets-conformance-adapter.drv' on farm.numtide.com:50051
iets-conformance-adapter> elastic-arm-b55ced5f: building ckn84cml9wsjsmmkhay7n51xgg44msak-iets-conformance-adapter.drv