these 2 derivations will be built:
  /nix/store/ywj0hgv4xbjwsib36fd8qpvig42afd7l-flake-inputs.drv
  /nix/store/pgfhb7sgw88gd1bxav3ziy6sq7cs9g8d-check-flake-inputs.drv
warning: ywj0hgv4xbjwsib36fd8qpvig42afd7l-flake-inputs.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}, waiting up to 120s for a worker
ywj0hgv4xbjwsib36fd8qpvig42afd7l-flake-inputs.drv: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: build of '/nix/store/ywj0hgv4xbjwsib36fd8qpvig42afd7l-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=21&system=aarch64-linux' failed: no connected, non-draining worker for system 'aarch64-linux' offers features {}, the workers offer {}
error: Cannot build '/nix/store/ywj0hgv4xbjwsib36fd8qpvig42afd7l-flake-inputs.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/jma2bqajnk8x40zc787r66kwvmii2bh8-flake-inputs
error: Cannot build '/nix/store/pgfhb7sgw88gd1bxav3ziy6sq7cs9g8d-check-flake-inputs.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/mcm3c733i2np0h3mx2jwpdjs7vll27ni-check-flake-inputs