this derivation will be built:
  /nix/store/45vcgi4b637s8xns1mqcy41587gdn0bs-treefmt-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