this derivation will be built:
  /nix/store/bnvp912g46xhgj8p9vzasdiawrr8hcr4-check-unpinCargoMsrvHook.drv
building '/nix/store/bnvp912g46xhgj8p9vzasdiawrr8hcr4-check-unpinCargoMsrvHook.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=21&system=aarch64-linux'
building '/nix/store/bnvp912g46xhgj8p9vzasdiawrr8hcr4-check-unpinCargoMsrvHook.drv' on farm.numtide.com:50051
check-unpinCargoMsrvHook> elastic-arm-5be5d98b: building bnvp912g46xhgj8p9vzasdiawrr8hcr4-check-unpinCargoMsrvHook.drv

upload niks3: ok