these 15 derivations will be built:
  /nix/store/yr60fdxwc66cdanjm5g9al72p23a3kwb-niks3-post-build-hook.drv
  /nix/store/f5rd52y3w38qanknmhx1ghgiaavbmgp9-nix.conf.drv
  /nix/store/bqa7nmds24xr8qlkr5xcc2iinn188zgv-X-Restart-Triggers-nix-daemon.drv
  /nix/store/41z4lxdsq0nlv3cnaflbsg7hzmj4g56y-unit-nix-daemon.service.drv
  /nix/store/x9b6f03ks50dbikilcxs3swkfpsad2jh-unit-niks3-auto-upload.service.drv
  /nix/store/67h0gsbqnjhjn6c2fikr9aw6vqwc0qf7-system-units.drv
  /nix/store/b56c98l5qyf1hrbmwhd92hibgc0fjrqg-etc.drv
  /nix/store/gkqmvzisfpjqb2m9bjgqsc1xdgwkdgg5-activate.drv
  /nix/store/24amip9kniknlss7s1n30dh1m4r084rh-nixos-system-builder-test.drv
  /nix/store/0nj5cf6qk1gziy8yykqylxjkvkph2gq5-closure-info.drv
  /nix/store/bdvhmz5xg2vynrhs9yvq105hplqkpz62-run-nixos-vm.drv
  /nix/store/rry5k8g0rzy7dh7gdx4z44p4wixqxdng-nixos-vm.drv
  /nix/store/hhv929rxfnsd5hmaw2hm1rd2xghrvknk-driverConfiguration.json.drv
  /nix/store/i0pcz90id55fg1sd75rmdxhjsm4n0vps-nixos-test-driver-nixos-test-niks3.drv
  /nix/store/hvdd1256prm5dr6b3wivlpi0f6cmq2yc-vm-test-run-nixos-test-niks3.drv
building '/nix/store/yr60fdxwc66cdanjm5g9al72p23a3kwb-niks3-post-build-hook.drv'
building '/nix/store/x9b6f03ks50dbikilcxs3swkfpsad2jh-unit-niks3-auto-upload.service.drv'
niks3-post-build-hook> tribuchet: building on jamie
unit-niks3-auto-upload.service> tribuchet: building on jamie
unit-niks3-auto-upload.service> structuredAttrs is enabled
building '/nix/store/f5rd52y3w38qanknmhx1ghgiaavbmgp9-nix.conf.drv'
nix.conf> tribuchet: building on jamie
nix.conf> Validating generated nix.conf
building '/nix/store/bqa7nmds24xr8qlkr5xcc2iinn188zgv-X-Restart-Triggers-nix-daemon.drv'
X-Restart-Triggers-nix-daemon> tribuchet: building on jamie
building '/nix/store/41z4lxdsq0nlv3cnaflbsg7hzmj4g56y-unit-nix-daemon.service.drv'
unit-nix-daemon.service> tribuchet: building on jamie
unit-nix-daemon.service> structuredAttrs is enabled
building '/nix/store/67h0gsbqnjhjn6c2fikr9aw6vqwc0qf7-system-units.drv'
system-units> tribuchet: building on jamie
building '/nix/store/b56c98l5qyf1hrbmwhd92hibgc0fjrqg-etc.drv'
etc> tribuchet: building on jamie
building '/nix/store/gkqmvzisfpjqb2m9bjgqsc1xdgwkdgg5-activate.drv'
activate> tribuchet: building on jamie
building '/nix/store/24amip9kniknlss7s1n30dh1m4r084rh-nixos-system-builder-test.drv'
nixos-system-builder-test> tribuchet: building on jamie