these 4 derivations will be built:
  /nix/store/6clkhm22jjcd7210bgv44g0khprhdm5x-nix-tarmac-0.1.0.drv
  /nix/store/az7hcyzmwjd4ls1i01jidmxhy0kqab07-nix-tarmac-0.1.0.drv
  /nix/store/ylgg5zirqgg3gdji9z9d5f0kfh68r5a2-nix-tarmac-0.1.0.drv
  /nix/store/agy02cyn3y0qzkrjsgayh9akfgqpwk3i-nix-tarmac-dispatcher.drv
Failed to find a machine for remote build!
derivation: 6clkhm22jjcd7210bgv44g0khprhdm5x-nix-tarmac-0.1.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])
Failed to find a machine for remote build!
derivation: az7hcyzmwjd4ls1i01jidmxhy0kqab07-nix-tarmac-0.1.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])
Failed to find a machine for remote build!
derivation: ylgg5zirqgg3gdji9z9d5f0kfh68r5a2-nix-tarmac-0.1.0.drv
required (system, features): (aarch64-linux, [])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])