this derivation will be built:
  /nix/store/dg6icb7p4mhxjcvxb2yf4xq0054zz11l-instance-eval.drv
building '/nix/store/dg6icb7p4mhxjcvxb2yf4xq0054zz11l-instance-eval.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'
warning: dg6icb7p4mhxjcvxb2yf4xq0054zz11l-instance-eval.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}, waiting up to 120s for a worker
building '/nix/store/dg6icb7p4mhxjcvxb2yf4xq0054zz11l-instance-eval.drv' on farm.numtide.com:50051
instance-eval> elastic-arm-a419b54f: building dg6icb7p4mhxjcvxb2yf4xq0054zz11l-instance-eval.drv
instance-eval> structuredAttrs is enabled

upload niks3: ok