these 11 derivations will be built:
  /nix/store/q9a7sbv5v9ag3kb4vz8wi6mm3acckgci-unit-radicle-mirror.service.drv
  /nix/store/r8aw6fmv25hj0w8ji39vyfxr629ydfi0-system-units.drv
  /nix/store/g63qz39zgshvf04p1gvysd0q9xxh9z3h-etc.drv
  /nix/store/ih2sf61abibcqmvs2fqmqvdmaq23k1b8-activate.drv
  /nix/store/dkbs5giwf7yfjpfrap29jk9p3h0mw55d-nixos-system-machine-test.drv
  /nix/store/vllr8y2ygbw7j16g745hk9lwhhjmklfz-closure-info.drv
  /nix/store/gd94m3ghzggs71bm2ggvji5b73di0cfx-run-nixos-vm.drv
  /nix/store/hnb01cijrfz09jq5wyn4glcrl2qc8xyw-nixos-vm.drv
  /nix/store/qnayrjgmd3kgk0n9b7rbgrpk3cjj09sh-driverConfiguration.json.drv
  /nix/store/bv3prjfwipr3i4r1rzdrlnkn6wrj1im1-nixos-test-driver-radicle-mirror.drv
  /nix/store/xad4155zl0crng6r2cgajnhm7lki2vga-vm-test-run-radicle-mirror.drv
Failed to find a machine for remote build!
derivation: xad4155zl0crng6r2cgajnhm7lki2vga-vm-test-run-radicle-mirror.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], [])