this derivation will be built:
  /nix/store/752h7jizg3x5mfn09fl92klzpxpqd5ys-iets-fuzz-eval-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