these 2 derivations will be built:
  /nix/store/8jjv3myrb8x6kcmblh1rfgrbcvwq9df5-flake-inputs.drv
  /nix/store/ip2n6d1ppc8lfbhh9lh56i3ga10cff61-check-flake-inputs.drv
error: gRPC QueryValidPaths on 'farm.numtide.com:50051' failed: error: substituter 'https://cache.numtide.com' is disabled
error: Cannot build '/nix/store/8jjv3myrb8x6kcmblh1rfgrbcvwq9df5-flake-inputs.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/1jp2x6g9h454cd6i0sha056sky8hyhmi-flake-inputs
error: Cannot build '/nix/store/ip2n6d1ppc8lfbhh9lh56i3ga10cff61-check-flake-inputs.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/zg4jlrsfznshrn9m2lyfbhs6pwcx34a1-check-flake-inputs