these 2 derivations will be built:
  /nix/store/y5q29p70dx70hbkjg34h0w8dcd058ibv-options.json.drv
  /nix/store/z8ca915f3sy0jr493i3a2k3bb5vpxhaa-options.md.drv
building '/nix/store/y5q29p70dx70hbkjg34h0w8dcd058ibv-options.json.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/y5q29p70dx70hbkjg34h0w8dcd058ibv-options.json.drv' on farm.numtide.com:50051
options.json> mac02: building y5q29p70dx70hbkjg34h0w8dcd058ibv-options.json.drv
building '/nix/store/z8ca915f3sy0jr493i3a2k3bb5vpxhaa-options.md.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/z8ca915f3sy0jr493i3a2k3bb5vpxhaa-options.md.drv' on farm.numtide.com:50051
options.md> mac02: building z8ca915f3sy0jr493i3a2k3bb5vpxhaa-options.md.drv
options.md> structuredAttrs is enabled