these 2 derivations will be built:
  /nix/store/k5n9mlsjhii9bwj5a81nfn9y14hmxdnd-flake-inputs.drv
  /nix/store/xs73xv6z6khbd5w8vadjg88b4398lbl3-check-flake-inputs.drv
farm.numtide.com:50051: failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.2:50051: tcp handshaker shutdown, retrying
building '/nix/store/k5n9mlsjhii9bwj5a81nfn9y14hmxdnd-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=22&system=aarch64-darwin'
building '/nix/store/k5n9mlsjhii9bwj5a81nfn9y14hmxdnd-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building k5n9mlsjhii9bwj5a81nfn9y14hmxdnd-flake-inputs.drv
building '/nix/store/xs73xv6z6khbd5w8vadjg88b4398lbl3-check-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=20&system=aarch64-darwin'
building '/nix/store/xs73xv6z6khbd5w8vadjg88b4398lbl3-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building xs73xv6z6khbd5w8vadjg88b4398lbl3-check-flake-inputs.drv