these 3 derivations will be built:
  /nix/store/v3zar1rl2dm35j3fav7acs7bqizmwf9h-openspec-src-with-lock.drv
  /nix/store/qpgv3va32j6navqa9qn5p5a94m2gfqli-openspec-1.15.0.drv
  /nix/store/p3zjr9rdpvm0z2xn4lks3apmz04660nb-check-openspec.drv
building '/nix/store/v3zar1rl2dm35j3fav7acs7bqizmwf9h-openspec-src-with-lock.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=23&system=aarch64-darwin'
building '/nix/store/v3zar1rl2dm35j3fav7acs7bqizmwf9h-openspec-src-with-lock.drv' on farm.numtide.com:50051
openspec-src-with-lock> mac02: building v3zar1rl2dm35j3fav7acs7bqizmwf9h-openspec-src-with-lock.drv
could not copy /nix/store/gp8lgdz7pvd5kx553f6s2i30b6fj24cz-openspec-src-with-lock: error: gRPC FetchNars failed: failed to connect to all addresses; last error: UNKNOWN: ipv4:65.21.215.17:50051: tcp handshaker shutdown
error: some outputs are unexpectedly invalid