these 25 derivations will be built:
  /nix/store/rffvwzggdg85sr0p3ya8lfxx8zqfhh9p-unit-tinc.mesh.service.drv
  /nix/store/jhlk7f32jnia35spk94gabaa3cfyq48i-system-path.drv
  /nix/store/66yyhk4r8bqd6rh7ln2ivp0hr3x8515s-dbus-1.drv
  /nix/store/j6kq7ch09qf9mlm5g6gsirrhj8wbw8h7-X-Restart-Triggers-dbus-broker.drv
  /nix/store/zbfav4pciwlf8fvbm5q6sm0b6anb3smc-unit-dbus-broker.service.drv
  /nix/store/2lilabmkvg0vjk7rrknn3cvp3vsyigza-system-units.drv
  /nix/store/xz3jqrsxg3s7dy4jr8l8skqf3ph3xivz-unit-dbus-broker.service.drv
  /nix/store/zlakyz0jf9m1mx2r5qbf186vwhsliaq6-user-units.drv
  /nix/store/g30svnzmxkj7qh4a0yn79k28pnx8q50s-etc.drv
  /nix/store/dvlz23a40rfgzjciln6rnp9ii955xz8y-activate.drv
  /nix/store/05d34myycfj5r44is7a8l1886f3qz5s8-nixos-system-beta-test.drv
  /nix/store/xcm0njhckhpk72lwhjnx1hxpbqsnzxp5-unit-tinc.mesh.service.drv
  /nix/store/4fxz8yad1z7vjbl8z83az4rl67g03i8q-system-units.drv
  /nix/store/zpn137x9dar33q8mf2alxyz83fwnr1km-etc.drv
  /nix/store/jzj9jrf9dqlz59a7s9wi43lbk88mhzsn-activate.drv
  /nix/store/cmwqdr2i38b16616lpgvr726a6bqajj8-nixos-system-alpha-test.drv
  /nix/store/jf5vd12cqmi9pnxzd0nd0rxhdqhlpb7r-closure-info.drv
  /nix/store/89cjhfh480ddm07vvb6m5zxx7yl23cm2-run-nixos-vm.drv
  /nix/store/p02ggdxc19s1bl1ysm6fypcxmpn8a275-nixos-vm.drv
  /nix/store/qfiw238lwlbxdff2vlppx9nic2rl1wyi-closure-info.drv
  /nix/store/81pp9nig82ickqdbfjbd320jwalb1n70-run-nixos-vm.drv
  /nix/store/v1s7gsbfkk5r4k5p567cam59x0phbpgl-nixos-vm.drv
  /nix/store/3hzfh8m4a1q2z1a0gmayw91lhnk0f1sm-driverConfiguration.json.drv
  /nix/store/pnciqkvx0fzn5qvxrfmgfywhbfs8hq7s-nixos-test-driver-tincd-nixos.drv
  /nix/store/cah0f5cghzi9vkliq54v1wpn9fiam9gz-vm-test-run-tincd-nixos.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
Failed to find a machine for remote build!
derivation: cah0f5cghzi9vkliq54v1wpn9fiam9gz-vm-test-run-tincd-nixos.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], [])