these 2 derivations will be built:
  /nix/store/r390fy3fm30p0i1d1wqf5dv76hnp71m0-flake-inputs.drv
  /nix/store/90xxzl1q7w4a2amv50sxr5gkjw0q7jr4-check-flake-inputs.drv
building '/nix/store/r390fy3fm30p0i1d1wqf5dv76hnp71m0-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/r390fy3fm30p0i1d1wqf5dv76hnp71m0-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building r390fy3fm30p0i1d1wqf5dv76hnp71m0-flake-inputs.drv
building '/nix/store/90xxzl1q7w4a2amv50sxr5gkjw0q7jr4-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/90xxzl1q7w4a2amv50sxr5gkjw0q7jr4-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building 90xxzl1q7w4a2amv50sxr5gkjw0q7jr4-check-flake-inputs.drv