these 2 derivations will be built:
  /nix/store/0wxl3hanv5531jd78wmx46nv7hjipg82-hindsight-1.1.0.drv
  /nix/store/rzq4wxlx2c7rsg0q0nbw0ajxsp1w6xr4-check-hindsight.drv
error: gRPC QueryValidPaths on 'farm.numtide.com:50051' failed: error: substituter 'https://cache.numtide.com' is disabled
error: Cannot build '/nix/store/0wxl3hanv5531jd78wmx46nv7hjipg82-hindsight-1.1.0.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/c27azlcz6a1hgzax9v2zrlxykwyhx5jd-hindsight-1.1.0
         /nix/store/r6md2505d2fhp9znddfwrya93rja267q-hindsight-1.1.0-dist
error: Cannot build '/nix/store/rzq4wxlx2c7rsg0q0nbw0ajxsp1w6xr4-check-hindsight.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/ywn9iid3sm76xw159ckicl27nf5xlrj7-check-hindsight