these 4 derivations will be built:
  /nix/store/i0xs8dkhw1c2wssq0bsxn3ndy9q9qa5m-nix-tarmac-0.1.0.drv
  /nix/store/ihf2bwy07k1ibbvb3nvv7pbxxm4h2cgz-nix-tarmac-0.1.0.drv
  /nix/store/qysxrnw0bvbwsdbd979zwj0h2c9hzwf3-nix-tarmac-0.1.0.drv
  /nix/store/3riyw9yh8fnj3m74dw4x6ysi3h4s28sy-nix-tarmac-dispatcher.drv
Failed to find a machine for remote build!
derivation: i0xs8dkhw1c2wssq0bsxn3ndy9q9qa5m-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: ihf2bwy07k1ibbvb3nvv7pbxxm4h2cgz-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: qysxrnw0bvbwsdbd979zwj0h2c9hzwf3-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], [])