these 2 derivations will be built:
  /nix/store/82056c1ls7sxh4iq0vn4q77laq9fbdnf-flake-inputs.drv
  /nix/store/ap7rmfqcli2fwasrlz3443ay31fd5frg-check-flake-inputs.drv
building '/nix/store/82056c1ls7sxh4iq0vn4q77laq9fbdnf-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'
building '/nix/store/82056c1ls7sxh4iq0vn4q77laq9fbdnf-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-97cbd869: building 82056c1ls7sxh4iq0vn4q77laq9fbdnf-flake-inputs.drv
building '/nix/store/ap7rmfqcli2fwasrlz3443ay31fd5frg-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=21&system=aarch64-linux'
building '/nix/store/ap7rmfqcli2fwasrlz3443ay31fd5frg-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-97cbd869: building ap7rmfqcli2fwasrlz3443ay31fd5frg-check-flake-inputs.drv
could not copy /nix/store/cia4ic2b7apimgi33r6f9zz6708fzv1s-check-flake-inputs: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv6:%5B2a01:4f9:3071:1fc8::1%5D:50051: handshaker shutdown
error: some outputs are unexpectedly invalid