these 72 derivations will be built: /nix/store/zp3xyvfc4pnq2s0k3qr8p2hs6mpgzcsq-users-groups.json.drv /nix/store/03hgnph9srgsmpy3pc0vvx1m7557wkxf-dry-activate.drv /nix/store/vgsk2w8yjmlw461incq1q5f9n09z1jir-system-path.drv /nix/store/s70ppjp4zr9xrvcsqzynf5cvprvhdf88-dbus-1.drv /nix/store/4gf4maqjs572b8ns868nn31hi9bdlzwk-X-Restart-Triggers-dbus-broker.drv /nix/store/03zmd8jpbjzkkz7n80h45769x5yk7x0g-unit-dbus-broker.service.drv /nix/store/3waishmd3i5dnhsxs10s9c1p5w4bh6z8-definitions.py.drv /nix/store/07p1lc2mnnfnf44527zbh9fxav5n4485-workspace.yaml.drv /nix/store/mh6cqk8dslsq4xdps4y58m9ppwchflqb-unit-rw-sysroot-nix-store.service.drv /nix/store/ghy74cs1fi8zw3v2z0m97mmipsnc5x5f-initrd-fstab.drv /nix/store/whlp34qw5qb9610ibz69bmldwlwnkdzc-unit-initrd-parse-etc.service.drv /nix/store/0ciqrx0cakg65fpxjqjin39bfh6afg0v-initrd-units.drv /nix/store/0wd6ddfc2sap48sxf91hpyxq8mp02fpr-test-script.drv /nix/store/80rx3w6n3zjf7pd0rxvgaixz5yd6fymn-system-path.drv /nix/store/27in91m6ynmmnl8mfysvh7ifyldfgjfd-dbus-1.drv /nix/store/9zgfiqmgm5vsfgw6bap78r5fq1kdal0y-user-units.drv /nix/store/wrb7s5yq9rdjk2c0aiw0x3hngmihxacs-dagster.yaml.drv /nix/store/x6xksf1y1znj4inhjbdrwica2qglkv1v-nixos-tmpfiles.d.drv /nix/store/a409r72q9bppzw8vk1790xqgk3sdi8c5-tmpfiles.d.drv /nix/store/i8zyi8rsv0i4isnkbng6p8w9fq0cd23f-etc-hostname.drv /nix/store/km170ccbvwkrnmwcygdp9mfr6fw4r5dj-nix.conf.drv /nix/store/8dlr9piazdlrd33z501n5zdnxngm2hzd-string-hosts.drv /nix/store/n0c7rnj716ia0ch980k5g1yr12ipsnh9-extra-hosts.drv /nix/store/rbfgv9vilfz5z20darmxq0sjcjzlpcwy-hosts.drv /nix/store/qsxlkx168ivb94fdqsxkdg78pski4fcs-X-Restart-Triggers-systemd-tmpfiles-resetup.drv /nix/store/84b52wlgm4mbjlygk0ysayd9sw2r6d62-unit-systemd-tmpfiles-resetup.service.drv /nix/store/i5f63zg0j1gxkqdhhpg4x1va0sbzfxyw-unit-script-network-addresses-eth1-start.drv /nix/store/g0v8ksjwjjgd5rfrkahfhdmzpn6m6r6c-unit-network-addresses-eth1.service.drv /nix/store/swp6s7slg30frlmxlpsivs46g27hmdqw-X-Restart-Triggers-nix-daemon.drv /nix/store/jmvxh1hmzpzmg7rlhcw4a1w6glxyqjjy-unit-nix-daemon.service.drv /nix/store/zf4vbm61wn4hwp4jivhyi2wbm7w3sqa4-unit-dbus-broker.service.drv /nix/store/sx7cj4cn79ys3b6l21gwhxrayrdd04dw-system-units.drv /nix/store/i93cb734jlp57yb4kicssp3ixr45zi10-etc.drv /nix/store/400j9rkw2s34p702rj93lynx9di7yjcn-activate.drv /nix/store/5ygdasmi4vr2qrlqccpl75aip8gd1ql4-boot.json.drv /nix/store/3vvd519ss16w5qdg72sf8p63x676iblh-nixos-system-worker-test.drv /nix/store/abm0q77wswj72bz6aanzjys5gn76qz73-initrd-udev-rules.drv /nix/store/58p9xmak737bbrf3gf9lhjm4fv31hy38-initrd-udev-rules.drv /nix/store/knyv1gb1y1cb8bdv2a8z38jn1lcdzkik-initrd-hostname.drv /nix/store/l0darxdmpybw7h09a2p4z2pzvbgkr520-initrd-journald.conf.drv /nix/store/n4n4wgxh12j5m3imz4xvyyrxd33jxlbf-initrd-system.conf.drv /nix/store/by6f00g64kj1gcd1yxby29dqw74ls52l-initrd-linux-6.18.54.drv /nix/store/8n1hcigig5510lf23wib90b1pzcippnm-boot.json.drv /nix/store/zrfv1mc5ffrbpsqh398srkwdrl8hb608-users-groups.json.drv /nix/store/ja1095z7ys6q9jmfv8jv5afdf4pxp8sz-dry-activate.drv /nix/store/71pp2r10m59lfpm2yl5hpmakavla4d70-X-Restart-Triggers-dbus-broker.drv /nix/store/9l8s6g8kcxn7zxicgx6wh8p5n639kzy5-unit-dbus-broker.service.drv /nix/store/520322pzx95s46q0vzhswd683c29d8zn-user-units.drv /nix/store/9vqnzh48y66gxlq5fg54icrqqq20f47y-etc-hostname.drv /nix/store/ygwmj0nrdki4ir209mxydm6jl9b6v2wr-string-hosts.drv /nix/store/nikl9mwi783f363nx5b91jrkf0g4nygk-hosts.drv /nix/store/rgq2hl7f7235mk6f96fffq19vh89cq0r-X-Restart-Triggers-dagster-daemon.drv /nix/store/6dpbys8zkahkdpckmb9pgd0yqp3lz8ch-unit-dagster-daemon.service.drv /nix/store/96vqnw5vjq34mjawzra33zg0ap3s4g3a-unit-dagster-code-hello.service.drv /nix/store/hi3s1bl361y2s6iah33p5c1c5jyg5wvj-unit-dbus-broker.service.drv /nix/store/bmbrb03f32b11wddxx8yysapapz16fqg-unit-script-postgresql-setup-start.drv /nix/store/r85lxpkzym6bxwxdnh2chf5yrbc6lqhw-unit-postgresql-setup.service.drv /nix/store/shq8ws669idllcqcrh9rjy31w575ynhd-X-Restart-Triggers-dagster-webserver.drv /nix/store/x8r3ydy795a91afcwc0bj84h1rf293xm-unit-dagster-webserver.service.drv /nix/store/wjqj3p6f6zr743wdb2a39ggg9hzp3pmp-system-units.drv /nix/store/vzl9vvm3f321ywrzlqvjkwb8w09hf0q0-etc.drv /nix/store/vihccm5ykks2cp289sjz2is0bhvjjzf6-activate.drv /nix/store/fxim4kn33m6jr5bkddga6idzji69id62-nixos-system-full-test.drv /nix/store/jnx94khf9gzf86pcddghy0ddycyl0j83-closure-info.drv /nix/store/hzjw60iyj978g8z6fi36r3bhmfay1mz4-run-nixos-vm.drv /nix/store/4n0dyhxiymhgpg6j56zjxb62l55lg781-nixos-vm.drv /nix/store/lspi467bgarjq9xlg9y68fwws7fna78p-closure-info.drv /nix/store/kjqhsiqcxcq5c69n8n08arhqkamzzs33-run-nixos-vm.drv /nix/store/yx1l9963j3mglhm25rp4bwdivdfy10zc-nixos-vm.drv /nix/store/97lvax8x8b6ivfykf2zj9sp0yyfsb7ca-driverConfiguration.json.drv /nix/store/hwq3wjv1v7xklycmii7b4466100ibixw-nixos-test-driver-dagster.drv /nix/store/izqdm6rjyf5kcmwxdahslkn7hq45vqln-vm-test-run-dagster.drv these 2 paths will be fetched (31.2 MiB download, 31.4 MiB unpacked): /nix/store/8pqv1fmj8kfdy8f6vqld4hakz64g3da4-initrd-linux-6.18.54 /nix/store/lc30qldmaahbxl1na07jm0rq1k2mjffa-linux-6.18.54-modules-shrunk error: Cannot build '/nix/store/izqdm6rjyf5kcmwxdahslkn7hq45vqln-vm-test-run-dagster.drv'. Reason: builder failed with exit code 1. Output paths: /nix/store/yvwc7q2c3h9lh2h9msm2q68l4bmrqmwd-vm-test-run-dagster Last 25 log lines: > full # [ 907.369402] dagster-webserver[5812]: import psycopg > full # [ 907.370421] dagster-webserver[5812]: ModuleNotFoundError: No module named 'psycopg' > full # [ 907.654704] systemd[1]: dagster-webserver.service: Main process exited, code=exited, status=1/FAILURE > full # [ 907.657088] systemd[1]: dagster-webserver.service: Failed with result 'exit-code'. > full # [ 907.659290] systemd[1]: dagster-webserver.service: Consumed 2.095s CPU time over 8.383s wall clock time, 111.8M memory peak. > full # [ 911.955189] systemd[1]: dagster-daemon.service: Scheduled restart job, restart counter is at 124. > full # [ 911.957980] systemd[1]: Started Dagster Daemon. > !!! Test "webserver starts and responds" failed with error: "action timed out after 900.39 seconds (timeout=900.0)" > !!! Traceback (most recent call last): > !!! File "", line 18, in > !!! full.wait_for_open_port(3000) > !!! > !!! RequestedAssertionFailed: action timed out after 900.39 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 # [2026-09-30T22:15:20Z INFO virtiofsd] Client disconnected, shutting down > full # [2026-09-30T22:15:20Z INFO virtiofsd] Client disconnected, shutting down > full # [2026-09-30T22:15:20Z 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 # [2026-09-30T22:15:20Z INFO virtiofsd] Client disconnected, shutting down > worker # [2026-09-30T22:15:20Z INFO virtiofsd] Client disconnected, shutting down > worker # [2026-09-30T22:15:20Z INFO virtiofsd] Client disconnected, shutting down > (finished: cleanup, in 0.34 seconds) For full logs, run: nix log /nix/store/izqdm6rjyf5kcmwxdahslkn7hq45vqln-vm-test-run-dagster.drv