these 2 derivations will be built:
  /nix/store/fmdrffxwnxijdham4z0x2v1vw0j480is-beads-1.3.1.drv
  /nix/store/0841kdzp9klc30l6dcfxs1x9b32wvrhq-check-beads.drv
building '/nix/store/0841kdzp9klc30l6dcfxs1x9b32wvrhq-check-beads.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/0841kdzp9klc30l6dcfxs1x9b32wvrhq-check-beads.drv' on farm.numtide.com:50051
check-beads> mac02: building 0841kdzp9klc30l6dcfxs1x9b32wvrhq-check-beads.drv