these 13 derivations will be built:
  /nix/store/iwdf7ymw5zvhcw0b897y8w2y7zyx6nn8-unit-dagster-daemon.service.drv
  /nix/store/ppb2aw3dnb4acr5wjhdy5k7fyx88wgpv-unit-dagster-code-hello.service.drv
  /nix/store/r911widywr2rd154hgd639mivpy5wkln-unit-dagster-webserver.service.drv
  /nix/store/jnyshx4fnsak31p88lxs3xs3y1rlsn98-system-units.drv
  /nix/store/gniw6ipmr0aljwfbf2zga9d6318xs581-etc.drv
  /nix/store/71kbz1w21izc0yqx7hffpfnipz7qwmrn-activate.drv
  /nix/store/d1zs0l9vmh1hq1v1rigkb2a7nzigws8w-nixos-system-full-test.drv
  /nix/store/i3sf86qbbsyybzhaxgxb0hg4yiwh2mrs-closure-info.drv
  /nix/store/ivssyq3xyz6xzv78rxzq6415315bi73p-run-nixos-vm.drv
  /nix/store/w591fxikk5hp9silgazvxmkppir8g408-nixos-vm.drv
  /nix/store/nfzw4p2mrddsag6qny2bizi4fmi1wbhx-driverConfiguration.json.drv
  /nix/store/982g3j2ljd36663bc1g47v8jhayw9g9v-nixos-test-driver-dagster.drv
  /nix/store/lpybv99gkzc659pffq1hkh9prq2jw5fy-vm-test-run-dagster.drv
error: Cannot build '/nix/store/lpybv99gkzc659pffq1hkh9prq2jw5fy-vm-test-run-dagster.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/nz9s8x0skzxbhcyvfklwyajmfpbw0dra-vm-test-run-dagster
       Last 25 log lines:
       > full # [  907.558284] dagster-daemon[5815]:     import psycopg
       > full # [  907.561079] dagster-daemon[5815]: ModuleNotFoundError: No module named 'psycopg'
       > full # [  907.756480] systemd[1]: dagster-daemon.service: Main process exited, code=exited, status=1/FAILURE
       > full # [  907.758738] systemd[1]: dagster-daemon.service: Failed with result 'exit-code'.
       > full # [  907.760884] systemd[1]: dagster-daemon.service: Consumed 1.450s CPU time over 7.293s wall clock time, 88.4M memory peak.
       > full # [  910.505321] systemd[1]: dagster-webserver.service: Scheduled restart job, restart counter is at 110.
       > full # [  910.521541] systemd[1]: Started Dagster Webserver.
       > !!! Test "webserver starts and responds" failed with error: "action timed out after 900.66 seconds (timeout=900.0)"
       > !!! Traceback (most recent call last):
       > !!!   File "<string>", line 18, in <module>
       > !!!     full.wait_for_open_port(3000)
       > !!! 
       > !!! RequestedAssertionFailed: action timed out after 900.66 seconds (timeout=900.0)
       > cleanup
       > kill QemuMachine (pid 47)
       > full # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/d64q19q1xjdwfhqx6czvrjgrhq0n3lcc-python3-3.14.7/bin/python3.14)
       > full # [2026-09-26T21:02:51Z INFO  virtiofsd] Client disconnected, shutting down
       > full # [2026-09-26T21:02:51Z INFO  virtiofsd] Client disconnected, shutting down
       > full # [2026-09-26T21:02:51Z INFO  virtiofsd] Client disconnected, shutting down
       > kill QemuMachine (pid 48)
       > worker # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/d64q19q1xjdwfhqx6czvrjgrhq0n3lcc-python3-3.14.7/bin/python3.14)
       > worker # [2026-09-26T21:02:51Z INFO  virtiofsd] Client disconnected, shutting down
       > worker # [2026-09-26T21:02:51Z INFO  virtiofsd] Client disconnected, shutting down
       > worker # [2026-09-26T21:02:51Z INFO  virtiofsd] Client disconnected, shutting down
       > (finished: cleanup, in 0.04 seconds)
       For full logs, run:
         nix log /nix/store/lpybv99gkzc659pffq1hkh9prq2jw5fy-vm-test-run-dagster.drv