these 23 derivations will be built:
  /nix/store/gh2sqj4azlvp02sacvnjcaiwlizz3zag-system-units.drv
  /nix/store/vch0fkg4ryn4i0488pjxk29094kx3ji5-etc.drv
  /nix/store/ad44b8sgknp9jvwhmvi5jkgm274w26q1-activate.drv
  /nix/store/q9nd9wx76i611jzl9fkdwliqnl8jisl5-boot.json.drv
  /nix/store/jljyakbs326qjx37xf9k865lf6i77vbh-nixos-system-worker-test.drv
  /nix/store/z24w83y07snm9abfira3h0lfa6qzyxaw-closure-info.drv
  /nix/store/abccdwg97pjqlvcrn7hy9h6daym8g3wj-run-nixos-vm.drv
  /nix/store/2wm0j6glrm9pm5irfmnr8hjrmm2ms1ig-nixos-vm.drv
  /nix/store/66cr9wvhqv242z1jzfsyvcl623d9w9yz-unit-dagster-daemon.service.drv
  /nix/store/7lmvrm8avm2rjsaivfnmc0p9laa1qx4m-unit-dagster-webserver.service.drv
  /nix/store/8acnkw24hsj6x8cpvr42039sri1nqbgb-initrd-linux-6.18.53.drv
  /nix/store/b77hs7fkavnmpq9w2m62cs1dbn0kx2xh-unit-dagster-code-hello.service.drv
  /nix/store/ii5hdblf7lsl5mc4pcy53q205yf6gd9k-system-units.drv
  /nix/store/ihci5nq575vl17572w24bdfnrxvn1fch-etc.drv
  /nix/store/vkypxf7v4f7f58i48qj8rnniiw8sh721-boot.json.drv
  /nix/store/vn72j681pp4k3h05ipqqyzw9nd7mmpxz-activate.drv
  /nix/store/mn33f0377661qk9mc7ckisn762mnnhv4-nixos-system-full-test.drv
  /nix/store/a07s9dv1s2r6xfmn0y4vcq2lnzjnwljv-closure-info.drv
  /nix/store/sy127ajkka8svrq99rn2s49gy55cagxk-run-nixos-vm.drv
  /nix/store/dm06rvac1bxk280cdndyfia5nzw5048v-nixos-vm.drv
  /nix/store/kgv6xzri1xfwns03dakp0jrprav7n37j-driverConfiguration.json.drv
  /nix/store/i2nc38nf8f830aivhfgqjfkhrafalr3i-nixos-test-driver-dagster.drv
  /nix/store/p7nq1p7zma7h0acnv1bsc2pv0m9nm2jh-vm-test-run-dagster.drv
these 2 paths will be fetched (31.2 MiB download, 31.4 MiB unpacked):
  /nix/store/1kf639b4fcf54g4j3l56lsb69npi84jg-initrd-linux-6.18.53
  /nix/store/iq73gylb0xmbsy2641ccax1n9j779j27-linux-6.18.53-modules-shrunk
error: Cannot build '/nix/store/p7nq1p7zma7h0acnv1bsc2pv0m9nm2jh-vm-test-run-dagster.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/kmyyg1zsrbqxld6kyqnskffs5qn248xr-vm-test-run-dagster
       Last 25 log lines:
       > full # [  908.860558] dagster-daemon[5814]:     dbapi = dbapi_meth(**dbapi_args)
       > full # [  908.861186] dagster-daemon[5814]:   File "/nix/store/08gix24mrfd64czy71djxlkk0alfk7sz-dagster-env/lib/python3.13/site-packages/sqlalchemy/dialects/postgresql/psycopg.py", line 497, in import_dbapi
       > full # [  908.910980] dagster-daemon[5814]:     import psycopg
       > full # [  908.911820] dagster-daemon[5814]: ModuleNotFoundError: No module named 'psycopg'
       > full # [  909.102754] systemd[1]: dagster-daemon.service: Main process exited, code=exited, status=1/FAILURE
       > full # [  909.105095] systemd[1]: dagster-daemon.service: Failed with result 'exit-code'.
       > full # [  909.107252] systemd[1]: dagster-daemon.service: Consumed 1.410s CPU time over 7.306s wall clock time, 88.6M memory peak.
       > !!! Test "webserver starts and responds" failed with error: "action timed out after 900.41 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 900.41 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 # [2026-09-27T21:19:35Z INFO  virtiofsd] Client disconnected, shutting down
       > full # [2026-09-27T21:19:35Z INFO  virtiofsd] Client disconnected, shutting down
       > full # [2026-09-27T21:19:35Z 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 # [2026-09-27T21:19:35Z INFO  virtiofsd] Client disconnected, shutting down
       > worker # [2026-09-27T21:19:35Z INFO  virtiofsd] Client disconnected, shutting down
       > worker # [2026-09-27T21:19:35Z INFO  virtiofsd] Client disconnected, shutting down
       > (finished: cleanup, in 0.36 seconds)
       For full logs, run:
         nix log /nix/store/p7nq1p7zma7h0acnv1bsc2pv0m9nm2jh-vm-test-run-dagster.drv