these 4 derivations will be built:
  /nix/store/cnvamvjq2c26y2ka7y5b2j937p2sxpx1-nix-tarmac-0.1.0.drv
  /nix/store/wf2q32i0vzlgr2xk1z499ab92czb0w0x-nix-tarmac-0.1.0.drv
  /nix/store/xr08cbw0bmqnw5qy6mwf95zv26l5w7py-nix-tarmac-0.1.0.drv
  /nix/store/w59mzd3rnl1jlh5zkf37z59drw5n2nmd-nix-tarmac-dispatcher.drv
Failed to find a machine for remote build!
derivation: cnvamvjq2c26y2ka7y5b2j937p2sxpx1-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: wf2q32i0vzlgr2xk1z499ab92czb0w0x-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: xr08cbw0bmqnw5qy6mwf95zv26l5w7py-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], [])