these 40 derivations will be built:
  /nix/store/1nych6ini1d8w7mpf808rrif5hmnj0yi-unit-nix-grpc-daemon.service.drv
  /nix/store/igw9bca0n5dn5cpmn6nh4409hyr74y41-unit-nix-grpc-daemon.service.drv
  /nix/store/nbjxhd5i53yfidp1qbnpf8f2swycjqyq-nix.conf.drv
  /nix/store/kvcnmm8ibamp2nm8gwg87pf6kgbqh4vn-X-Restart-Triggers-nix-daemon.drv
  /nix/store/zflscbpkv3v59j6vjmapw4kama7ai4lv-unit-nix-daemon.service.drv
  /nix/store/7lznaq51c21iznmb44q6ysbs99agx81i-system-units.drv
  /nix/store/7za4d739kzxxcdx3rwfl4lfbp2dpj4r5-etc.drv
  /nix/store/cb3d66d7fvs3qciizzygr8qvabkksnvb-activate.drv
  /nix/store/jilg8xxjc7shr14fv2qsff80b1snyfx0-nixos-system-worker1-test.drv
  /nix/store/5h3qkz2mxwcbgnpnpbj0200syg3shx43-closure-info.drv
  /nix/store/mxqvg6g6jncjfywp7v1v8ysp9rxvvcak-run-nixos-vm.drv
  /nix/store/27dw8i2cp0zavfsb7y3nhbf711qnsk10-nixos-vm.drv
  /nix/store/j9hp3q4czigprj1cqp88g93dfc1zs4bv-nix.conf.drv
  /nix/store/gp7z3qw8im4xgnxhfi61i7n8s3c1zppf-X-Restart-Triggers-nix-daemon.drv
  /nix/store/dfpd65r8s4m3265acv8d75smqigy84qa-unit-nix-daemon.service.drv
  /nix/store/p0kw63504xw9nnh40qn51y7pk3vmkmx0-system-units.drv
  /nix/store/kwfds9gzpzd5sbd216n2r82j4igvv3yn-etc.drv
  /nix/store/x5swkm8s3cs0k1wcndpnrpzrgppv8qrf-activate.drv
  /nix/store/yvqqwvns5q0v45isr9mvx241hh940c2f-nixos-system-client-test.drv
  /nix/store/8m5y71bvi5qlfpsgrfpfby0c2i3p573g-closure-info.drv
  /nix/store/4v1zf6cczpnmlkjzr2ba14z37drcps5g-run-nixos-vm.drv
  /nix/store/zq3r6y7w1nqafzallxpc26v25l4nnwi0-nix.conf.drv
  /nix/store/mqsb9wh7nab25c65rhhxml5ly3sg5qxd-X-Restart-Triggers-nix-daemon.drv
  /nix/store/mggjyf18rn49sc67dk8vy08k6ci55mb0-unit-nix-daemon.service.drv
  /nix/store/nc07v05lxjhmrlxrivzxip9i00qwadni-system-units.drv
  /nix/store/7gcxx5f457djjz2kgd6ymiqnw7dffcky-etc.drv
  /nix/store/dxyrv4vadckrbkg2iglhdml6a2z7rcsr-nixos-vm.drv
  /nix/store/zrvbran11fz61vpklhzhslg6ky8gqrkp-activate.drv
  /nix/store/mzfbi9yb3k7lwjag0s7k3vlzs9a5jhq5-nixos-system-worker2-test.drv
  /nix/store/vrlh822y8nwpp23a2wxw6cl2l1wg20zg-unit-nix-grpc-daemon.service.drv
  /nix/store/kvk8nqbphyqz7sxiq6b9nya1z6yqlbcz-system-units.drv
  /nix/store/y8yya2xdvs4mz0bfd7a2y8rnvcfb54l2-etc.drv
  /nix/store/nm640qvhs8c56k4zl1fmw4aqgl3si4zm-activate.drv
  /nix/store/9nwqa3l5yzhphmphbj2bv9pj2qilaamn-nixos-system-worker2-test.drv
  /nix/store/yxv2i7i7k1xkvpy2m6n7axjsfqkqqqrq-closure-info.drv
  /nix/store/vwbxbhs1b08ci9cljdhp2h95667jggg5-run-nixos-vm.drv
  /nix/store/jl20qipnzalj42d3bf2dyw96icj3c3ln-nixos-vm.drv
  /nix/store/7hddmxinw2m5jfjjlja9kyhs4m7wcy5z-driverConfiguration.json.drv
  /nix/store/di3gc8hb2k8xqkhzp1macxlx09az0pkq-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/iap1b4am0p4yp89rcnyd9km1mvxvjrd5-vm-test-run-nix-grpc-farm.drv
building '/nix/store/j9hp3q4czigprj1cqp88g93dfc1zs4bv-nix.conf.drv'
building '/nix/store/nbjxhd5i53yfidp1qbnpf8f2swycjqyq-nix.conf.drv'
building '/nix/store/zq3r6y7w1nqafzallxpc26v25l4nnwi0-nix.conf.drv'
building '/nix/store/igw9bca0n5dn5cpmn6nh4409hyr74y41-unit-nix-grpc-daemon.service.drv'
building '/nix/store/vrlh822y8nwpp23a2wxw6cl2l1wg20zg-unit-nix-grpc-daemon.service.drv'
building '/nix/store/1nych6ini1d8w7mpf808rrif5hmnj0yi-unit-nix-grpc-daemon.service.drv'
nix.conf> tribuchet: building on jamie
nix.conf> tribuchet: building on jamie
nix.conf> tribuchet: building on jamie
unit-nix-grpc-daemon.service> tribuchet: building on jamie
unit-nix-grpc-daemon.service> tribuchet: building on jamie
unit-nix-grpc-daemon.service> tribuchet: building on jamie
nix.conf> Validating generated nix.conf
nix.conf> Validating generated nix.conf
nix.conf> Validating generated nix.conf
unit-nix-grpc-daemon.service> structuredAttrs is enabled
unit-nix-grpc-daemon.service> structuredAttrs is enabled
unit-nix-grpc-daemon.service> structuredAttrs is enabled
building '/nix/store/mqsb9wh7nab25c65rhhxml5ly3sg5qxd-X-Restart-Triggers-nix-daemon.drv'
X-Restart-Triggers-nix-daemon> tribuchet: building on jamie
building '/nix/store/gp7z3qw8im4xgnxhfi61i7n8s3c1zppf-X-Restart-Triggers-nix-daemon.drv'
X-Restart-Triggers-nix-daemon> tribuchet: building on jamie
building '/nix/store/kvcnmm8ibamp2nm8gwg87pf6kgbqh4vn-X-Restart-Triggers-nix-daemon.drv'
X-Restart-Triggers-nix-daemon> tribuchet: building on jamie
building '/nix/store/mggjyf18rn49sc67dk8vy08k6ci55mb0-unit-nix-daemon.service.drv'
unit-nix-daemon.service> tribuchet: building on jamie
building '/nix/store/zflscbpkv3v59j6vjmapw4kama7ai4lv-unit-nix-daemon.service.drv'
building '/nix/store/dfpd65r8s4m3265acv8d75smqigy84qa-unit-nix-daemon.service.drv'
unit-nix-daemon.service> tribuchet: building on jamie
unit-nix-daemon.service> tribuchet: building on jamie
unit-nix-daemon.service> structuredAttrs is enabled
unit-nix-daemon.service> structuredAttrs is enabled
unit-nix-daemon.service> structuredAttrs is enabled
building '/nix/store/kvk8nqbphyqz7sxiq6b9nya1z6yqlbcz-system-units.drv'
building '/nix/store/nc07v05lxjhmrlxrivzxip9i00qwadni-system-units.drv'
system-units> tribuchet: building on jamie
system-units> tribuchet: building on jamie
building '/nix/store/p0kw63504xw9nnh40qn51y7pk3vmkmx0-system-units.drv'
building '/nix/store/7lznaq51c21iznmb44q6ysbs99agx81i-system-units.drv'
system-units> tribuchet: building on jamie
system-units> tribuchet: building on jamie
building '/nix/store/y8yya2xdvs4mz0bfd7a2y8rnvcfb54l2-etc.drv'
building '/nix/store/7gcxx5f457djjz2kgd6ymiqnw7dffcky-etc.drv'
etc> tribuchet: building on jamie
etc> tribuchet: building on jamie
building '/nix/store/kwfds9gzpzd5sbd216n2r82j4igvv3yn-etc.drv'
building '/nix/store/7za4d739kzxxcdx3rwfl4lfbp2dpj4r5-etc.drv'
etc> tribuchet: building on jamie
etc> tribuchet: building on jamie
building '/nix/store/nm640qvhs8c56k4zl1fmw4aqgl3si4zm-activate.drv'
activate> tribuchet: building on jamie
building '/nix/store/zrvbran11fz61vpklhzhslg6ky8gqrkp-activate.drv'
activate> tribuchet: building on jamie
building '/nix/store/x5swkm8s3cs0k1wcndpnrpzrgppv8qrf-activate.drv'
activate> tribuchet: building on jamie
building '/nix/store/cb3d66d7fvs3qciizzygr8qvabkksnvb-activate.drv'
activate> tribuchet: building on jamie
building '/nix/store/mzfbi9yb3k7lwjag0s7k3vlzs9a5jhq5-nixos-system-worker2-test.drv'
building '/nix/store/yvqqwvns5q0v45isr9mvx241hh940c2f-nixos-system-client-test.drv'
building '/nix/store/jilg8xxjc7shr14fv2qsff80b1snyfx0-nixos-system-worker1-test.drv'
nixos-system-client-test> tribuchet: building on jamie
nixos-system-worker2-test> tribuchet: building on jamie
nixos-system-worker1-test> tribuchet: building on jamie
nixos-system-worker2-test> structuredAttrs is enabled
nixos-system-worker1-test> structuredAttrs is enabled