this derivation will be built:
  /nix/store/16jyc884lna71j71j7hy9jdfz34s8iig-treefmt-check.drv
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: connection termination, retrying
farm.numtide.com:50051: upstream connect error or disconnect/reset before headers. reset reason: connection termination, retrying