these 40 derivations will be built:
  /nix/store/01ffkvvgi0a94567yyssnm2j52d7c8n3-unit-nix-grpc-daemon.service.drv
  /nix/store/dpd4xylljc3v9i6nxpg0bzwmgcwmisq8-unit-nix-grpc-daemon.service.drv
  /nix/store/n2gqbqar6bdag7lmdz0zli3cscy0x43p-nix.conf.drv
  /nix/store/6q7cy9cqnbmmdkdqm7dj28s0vx5bkpif-X-Restart-Triggers-nix-daemon.drv
  /nix/store/h664r47y7p4l41xxdqqfay6xk3f3zy87-unit-nix-daemon.service.drv
  /nix/store/03h50nw3kd50clg7kcyflsg0wqsn7pvh-system-units.drv
  /nix/store/7il5rgz9ns22f974hkw8n2ajamcddh2l-nix.conf.drv
  /nix/store/mxj77sn7qilz6yhdj23d29b12arrabhm-X-Restart-Triggers-nix-daemon.drv
  /nix/store/kgbw7nxjc4vrs1y3b4bdzlx3axksmb73-unit-nix-daemon.service.drv
  /nix/store/gyzi4nixr2smni02l2181sflqmdiyhdl-system-units.drv
  /nix/store/f58y7wd6w851pyq7v19r37v91f1g2ipc-etc.drv
  /nix/store/ch8mc4hwg4k7annbnfxvp9i4135k1iz2-activate.drv
  /nix/store/va9s23krzrz4ydv95vijahw91606j1fk-nixos-system-worker1-test.drv
  /nix/store/06908yafjmxdywf8z9vkndlaqh9h135j-closure-info.drv
  /nix/store/8jnry4082fblvpki74j6rfx0q1rniqk1-etc.drv
  /nix/store/mw9a45hygpfbn41d799j1n76096a0gc4-unit-nix-grpc-daemon.service.drv
  /nix/store/in0nz31h17yjccrnblp08j2qf7ppisqf-system-units.drv
  /nix/store/5q5gsi29glfgw9fz1khdjlsyhc6lha08-etc.drv
  /nix/store/cn62rdq8598jcq1nlbbki66li2p2ksz7-activate.drv
  /nix/store/c5cqic5kp1sfxf70cqmzs0wf9a8bvb12-nixos-system-worker2-test.drv
  /nix/store/nxa6zmyldjp4v5qp9xshik4hv9dv1ad5-activate.drv
  /nix/store/11cbbxmg5m0050a12bgrw3dd35j47gb5-nixos-system-worker2-test.drv
  /nix/store/yh4y8n324fbhm0527wqgkwsnppskshx2-run-nixos-vm.drv
  /nix/store/b73ljn4pi2c8q7rvj33jgrpr3x346la9-nixos-vm.drv
  /nix/store/bq7qv26mf84ag7mcvcvc7633jsv49kns-nix.conf.drv
  /nix/store/9kqg66cpj93kasl20fh8vl8wr23z9b5s-X-Restart-Triggers-nix-daemon.drv
  /nix/store/cdmi1xxngjbsakryl637hxckrmv7b6c2-unit-nix-daemon.service.drv
  /nix/store/hcfpavh892ppa3xw1hsv5jjwdjz7pl7m-system-units.drv
  /nix/store/wndhx6504330i3x87fcyxl6kbz5a1sg1-etc.drv
  /nix/store/zk9kdzhdfk1gzqr8fdr35sn2rgvk4l01-activate.drv
  /nix/store/rpw371ka9jbykzlki119cxa3akppb26x-nixos-system-client-test.drv
  /nix/store/hd6wkdp95x37prwy6js55zrk2sjc7xfz-closure-info.drv
  /nix/store/xxngr1pikm64kj5idilmpq5bwr5r4bxv-run-nixos-vm.drv
  /nix/store/iyv72ai2xi5xi03dbnrn2dw3ahd39rzc-nixos-vm.drv
  /nix/store/iq7rc1h3b1661fg0kc1r7zajmw4v86w6-closure-info.drv
  /nix/store/yv2amlbjr79jacd8mjhxspr4hs85fgb6-run-nixos-vm.drv
  /nix/store/zfr8qdw7kaw64hikyllf7psypvry279z-nixos-vm.drv
  /nix/store/9327y6vdardmyvj1il7vap02agjpdls5-driverConfiguration.json.drv
  /nix/store/jn45jcyyx7pd38invhnyw9y1qc86hddj-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/5lcgls16ysig802z5ibbvv8x5qk76fzj-vm-test-run-nix-grpc-farm.drv
building '/nix/store/7il5rgz9ns22f974hkw8n2ajamcddh2l-nix.conf.drv'
building '/nix/store/bq7qv26mf84ag7mcvcvc7633jsv49kns-nix.conf.drv'
building '/nix/store/n2gqbqar6bdag7lmdz0zli3cscy0x43p-nix.conf.drv'
building '/nix/store/01ffkvvgi0a94567yyssnm2j52d7c8n3-unit-nix-grpc-daemon.service.drv'
building '/nix/store/dpd4xylljc3v9i6nxpg0bzwmgcwmisq8-unit-nix-grpc-daemon.service.drv'
building '/nix/store/mw9a45hygpfbn41d799j1n76096a0gc4-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> structuredAttrs is enabled
nix.conf> Validating generated nix.conf
nix.conf> structuredAttrs is enabled
nix.conf> structuredAttrs is enabled
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/6q7cy9cqnbmmdkdqm7dj28s0vx5bkpif-X-Restart-Triggers-nix-daemon.drv'
X-Restart-Triggers-nix-daemon> tribuchet: building on jamie
building '/nix/store/mxj77sn7qilz6yhdj23d29b12arrabhm-X-Restart-Triggers-nix-daemon.drv'
X-Restart-Triggers-nix-daemon> tribuchet: building on jamie
building '/nix/store/9kqg66cpj93kasl20fh8vl8wr23z9b5s-X-Restart-Triggers-nix-daemon.drv'
X-Restart-Triggers-nix-daemon> tribuchet: building on jamie
X-Restart-Triggers-nix-daemon> structuredAttrs is enabled
X-Restart-Triggers-nix-daemon> structuredAttrs is enabled
X-Restart-Triggers-nix-daemon> structuredAttrs is enabled
building '/nix/store/h664r47y7p4l41xxdqqfay6xk3f3zy87-unit-nix-daemon.service.drv'
unit-nix-daemon.service> tribuchet: building on jamie
building '/nix/store/kgbw7nxjc4vrs1y3b4bdzlx3axksmb73-unit-nix-daemon.service.drv'
building '/nix/store/cdmi1xxngjbsakryl637hxckrmv7b6c2-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/03h50nw3kd50clg7kcyflsg0wqsn7pvh-system-units.drv'
building '/nix/store/in0nz31h17yjccrnblp08j2qf7ppisqf-system-units.drv'
system-units> tribuchet: building on jamie
system-units> tribuchet: building on jamie
building '/nix/store/gyzi4nixr2smni02l2181sflqmdiyhdl-system-units.drv'
system-units> tribuchet: building on jamie
building '/nix/store/hcfpavh892ppa3xw1hsv5jjwdjz7pl7m-system-units.drv'
system-units> tribuchet: building on jamie
building '/nix/store/8jnry4082fblvpki74j6rfx0q1rniqk1-etc.drv'
building '/nix/store/5q5gsi29glfgw9fz1khdjlsyhc6lha08-etc.drv'
etc> tribuchet: building on jamie
etc> tribuchet: building on jamie
building '/nix/store/wndhx6504330i3x87fcyxl6kbz5a1sg1-etc.drv'
building '/nix/store/f58y7wd6w851pyq7v19r37v91f1g2ipc-etc.drv'
etc> tribuchet: building on jamie
etc> tribuchet: building on jamie
building '/nix/store/nxa6zmyldjp4v5qp9xshik4hv9dv1ad5-activate.drv'
activate> tribuchet: building on jamie
building '/nix/store/cn62rdq8598jcq1nlbbki66li2p2ksz7-activate.drv'
activate> tribuchet: building on jamie
building '/nix/store/zk9kdzhdfk1gzqr8fdr35sn2rgvk4l01-activate.drv'
activate> tribuchet: building on jamie
building '/nix/store/ch8mc4hwg4k7annbnfxvp9i4135k1iz2-activate.drv'
activate> tribuchet: building on jamie
activate> structuredAttrs is enabled
activate> structuredAttrs is enabled
activate> structuredAttrs is enabled
activate> structuredAttrs is enabled
building '/nix/store/c5cqic5kp1sfxf70cqmzs0wf9a8bvb12-nixos-system-worker2-test.drv'
nixos-system-worker2-test> tribuchet: building on jamie
building '/nix/store/rpw371ka9jbykzlki119cxa3akppb26x-nixos-system-client-test.drv'
nixos-system-client-test> tribuchet: building on jamie
building '/nix/store/va9s23krzrz4ydv95vijahw91606j1fk-nixos-system-worker1-test.drv'
nixos-system-worker1-test> tribuchet: building on jamie
nixos-system-worker2-test> structuredAttrs is enabled
nixos-system-client-test> structuredAttrs is enabled
nixos-system-worker1-test> structuredAttrs is enabled
building '/nix/store/11cbbxmg5m0050a12bgrw3dd35j47gb5-nixos-system-worker2-test.drv'
nixos-system-worker2-test> tribuchet: building on jamie
building '/nix/store/hd6wkdp95x37prwy6js55zrk2sjc7xfz-closure-info.drv'
nixos-system-worker2-test> structuredAttrs is enabled
building '/nix/store/06908yafjmxdywf8z9vkndlaqh9h135j-closure-info.drv'
closure-info> tribuchet: building on jamie
building '/nix/store/iq7rc1h3b1661fg0kc1r7zajmw4v86w6-closure-info.drv'
closure-info> tribuchet: building on jamie
closure-info> structuredAttrs is enabled
closure-info> structuredAttrs is enabled
building '/nix/store/xxngr1pikm64kj5idilmpq5bwr5r4bxv-run-nixos-vm.drv'
closure-info> tribuchet: building on jamie
building '/nix/store/yh4y8n324fbhm0527wqgkwsnppskshx2-run-nixos-vm.drv'
run-nixos-vm> tribuchet: building on jamie
run-nixos-vm> tribuchet: building on jamie
closure-info> structuredAttrs is enabled
run-nixos-vm> structuredAttrs is enabled
run-nixos-vm> structuredAttrs is enabled
building '/nix/store/yv2amlbjr79jacd8mjhxspr4hs85fgb6-run-nixos-vm.drv'
run-nixos-vm> tribuchet: building on jamie
building '/nix/store/b73ljn4pi2c8q7rvj33jgrpr3x346la9-nixos-vm.drv'
building '/nix/store/iyv72ai2xi5xi03dbnrn2dw3ahd39rzc-nixos-vm.drv'
nixos-vm> tribuchet: building on jamie
nixos-vm> tribuchet: building on jamie
run-nixos-vm> structuredAttrs is enabled
building '/nix/store/zfr8qdw7kaw64hikyllf7psypvry279z-nixos-vm.drv'
nixos-vm> tribuchet: building on jamie