this derivation will be built:
  /nix/store/xlwbawb8psazzxrf6spyd47n575dglry-interpolate-conformance.drv
error: gRPC BuildDerivation on 'farm.numtide.com:50051' failed: bld4: missing: /nix/store/xlwbawb8psazzxrf6spyd47n575dglry-interpolate-conformance.drv
error: Cannot build '/nix/store/xlwbawb8psazzxrf6spyd47n575dglry-interpolate-conformance.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/p2bmdjkqxrisiv5nlh8arhmgsxrj3l37-interpolate-conformance