these 11 derivations will be built:
  /nix/store/4pf32i535l72qjgf0y9q9yki89q9si8r-unit-niks3.service.drv
  /nix/store/2jzhnvsk9ckvqy8dfgb0zgv8w36ghy4b-system-units.drv
  /nix/store/f5p531gkpcgssz98p55f9r1ccdgz03ch-etc.drv
  /nix/store/gwgf52306m2y7r8i5rks9riwfzrzqa7k-activate.drv
  /nix/store/a8h2zg66qrvzd74p54bq5akbbi0qjlim-nixos-system-server-test.drv
  /nix/store/j6aj17vavgg0inr8r55xg5j75076vkaz-closure-info.drv
  /nix/store/bgxnji5v0b0xvz7cg7395kswgbcmdd46-run-nixos-vm.drv
  /nix/store/dp32chkkkd6zqwvi3zrvm4f27nllhagm-nixos-vm.drv
  /nix/store/xzxdfdqvn6ypab6lkfg7k0hk2diib9lr-driverConfiguration.json.drv
  /nix/store/5sbmmcjzgmfj61qq52q4anj8k1chxp0b-nixos-test-driver-nixos-test-read-proxy.drv
  /nix/store/aadh02mwbwds14dw68zh0qbk2nffp5gj-vm-test-run-nixos-test-read-proxy.drv
Failed to find a machine for remote build!
derivation: aadh02mwbwds14dw68zh0qbk2nffp5gj-vm-test-run-nixos-test-read-proxy.drv
required (system, features): (aarch64-linux, [kvm, nixos-test])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])