these 2 derivations will be built:
  /nix/store/c7l6304pygkamr6ncwcc6hgzijd6j1di-amp-0.0.1792699242-g1cbc87.drv
  /nix/store/4i10m222jc5ccsscp5xv2il3ijfhif17-check-amp.drv
error: gRPC QueryValidPaths on 'farm.numtide.com:50051' failed: upstream connect error or disconnect/reset before headers. reset reason: connection termination
       hint: Set NIX_GRPC_DEBUG=1 for a handshake trace.
error: Cannot build '/nix/store/c7l6304pygkamr6ncwcc6hgzijd6j1di-amp-0.0.1792699242-g1cbc87.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/hw1pgqzczid6jz38pi8y15wcxnb9w448-amp-0.0.1792699242-g1cbc87
error: Cannot build '/nix/store/4i10m222jc5ccsscp5xv2il3ijfhif17-check-amp.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/ia8rzszwhni5ac1pwysqlv4znl8wmm89-check-amp