this derivation will be built:
  /nix/store/8psbl1zlh5y4zwnj0jbjw6c7xk6s7vkf-iets-fuzz-drv-check.drv
scheduler at farm.numtide.com:50051: no healthy upstream, reconnecting
scheduler at farm.numtide.com:50051: no healthy upstream, reconnecting
scheduler at farm.numtide.com:50051: no healthy upstream, reconnecting
scheduler at farm.numtide.com:50051: no healthy upstream, reconnecting