these 11 derivations will be built:
  /nix/store/f7mh5mxhqq2c78lf34l6r876gzqr9wmf-unit-niks3.service.drv
  /nix/store/fvvi1102mi89g77mqaffypkv2b0g0nzl-system-units.drv
  /nix/store/xnc8jijhlqywhsss9mmj9bkz6bnpnykd-etc.drv
  /nix/store/5chrq0rf15sjlv577sbapwnqhyjv9zmh-activate.drv
  /nix/store/8sdd8dlvi70ikwsq7ddr4f8wqgpp0jk5-nixos-system-server-test.drv
  /nix/store/s16n7djkrqsr7n79byzfa63dp8xq0xbm-closure-info.drv
  /nix/store/hqv8mszgcprj70rpsih0kgzq9jl1r8dz-run-nixos-vm.drv
  /nix/store/bqnrkbj9ymyainza202y3yn20njvdqc2-nixos-vm.drv
  /nix/store/nbh8xywn70dndb940glb5qwyyp062hyd-driverConfiguration.json.drv
  /nix/store/1w0bifw34d1qlwpahvx01wl8n4d44zxr-nixos-test-driver-nixos-test-external-signer.drv
  /nix/store/kllrnh9rsfrz8spz394dqx5p4k70gb7q-vm-test-run-nixos-test-external-signer.drv
Failed to find a machine for remote build!
derivation: kllrnh9rsfrz8spz394dqx5p4k70gb7q-vm-test-run-nixos-test-external-signer.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], [])