these 4 derivations will be built:
  /nix/store/7r03g112nfkz7y7f25803vjkzgvflmzp-nix-tarmac-0.1.0.drv
  /nix/store/h8ks8g13ymdjg5b9gjyz84dxf3r5x0yq-nix-tarmac-0.1.0.drv
  /nix/store/xi3vy2wykqfq7l7ggnsqkiir4k0737lk-nix-tarmac-0.1.0.drv
  /nix/store/1im69z4xk5b7awgmp8kiansmxygpl0in-nix-tarmac-dispatcher.drv
Failed to find a machine for remote build!
derivation: 7r03g112nfkz7y7f25803vjkzgvflmzp-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: h8ks8g13ymdjg5b9gjyz84dxf3r5x0yq-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: xi3vy2wykqfq7l7ggnsqkiir4k0737lk-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], [])