1these 25 derivations will be built:2 /nix/store/z12dajz7hn0nk94w16ngh7zmczqf67hv-nixos-apply-probe.drv3 /nix/store/0kp5nx9cf4rj7blyb8jgykjmyg2qrm0i-spaces-nixos-targets.json.drv4 /nix/store/gjic3xigxih18g92s61rdi4m77d2qgvv-system-path.drv5 /nix/store/a4k6ff12dxz8n2dm6lisfzxwl5qmb532-unit-spaces-integration-nixos.service.drv6 /nix/store/sjd46wn6g0588z5bkmi917z8cvc5x9ad-dbus-1.drv7 /nix/store/cql1bj577yfqpl5mw713mnkwpak5w02n-X-Restart-Triggers-dbus-broker.drv8 /nix/store/pgv2arhal8ly5p7qrvx1vi6mxsdgxbcj-unit-dbus-broker.service.drv9 /nix/store/kkwpllqnaykhqqw8fh8qh5s6zd72jihi-spaces-nixos-apply-dispatch.drv10 /nix/store/w96yiv4wr51lw9m0sbflzs91vmcya14z-unit-spaces-nixos-apply.service.drv11 /nix/store/ldmgdxhxc2akaai8mvwkx3mlx23gwx8c-user-units.drv12 /nix/store/p0ivxkxb57j91aw6pw1m1milbq7i1z89-tmpfiles.d.drv13 /nix/store/f8ym3nzqyinbh5mz4zy9fl66byx14znx-X-Restart-Triggers-systemd-tmpfiles-resetup.drv14 /nix/store/bl0w1rh16yl2wcqq8q6ncwsg62armrkx-unit-systemd-tmpfiles-resetup.service.drv15 /nix/store/xz02zj6ig2d4n4nbm1lbn6xgys4jn92b-unit-dbus-broker.service.drv16 /nix/store/n6yhp2ci1ggnbpqsj0g22xq9i1zapwq9-system-units.drv17 /nix/store/qzgj6nrjy3r0dmppgq4i8x5ihlw0ijj6-etc.drv18 /nix/store/5rf6y49l46s7slg9g5p6m6bfl81qavms-activate.drv19 /nix/store/bjbc471cfhajpb9qpbvdx5zfvbybv16c-nixos-system-machine-test.drv20 /nix/store/9gmhiac1wlnbix57xzd2yqf5gs1myh2i-closure-info.drv21 /nix/store/pxixllw4vvw0dkw4yjn89bpyc24w23mx-test-script.drv22 /nix/store/m7hg1qy5vpha0fq59lmn31w874w22dwi-run-nixos-vm.drv23 /nix/store/jav051im4iybphps321lp78sf91cns7i-nixos-vm.drv24 /nix/store/zyr2kcsnvyp8byk5430i2qykizgkifjf-driverConfiguration.json.drv25 /nix/store/d3jkqxlscyb7w551x6c2jmqdfq3a8znl-nixos-test-driver-spaces-nixos-apply-vm.drv26 /nix/store/ak1gppf0a4h26fq8yphvracncr6qw12v-vm-test-run-spaces-nixos-apply-vm.drv27these 3 paths will be fetched (0.2 KiB download, 0.3 KiB unpacked):28 /nix/store/3izs1sb1qna1w6kfrbzi38hkqb8mzfnr-system-generators29 /nix/store/bp62kjdr3aqikxfggrwscj7v09zfcqrd-system-shutdown30 /nix/store/ldvczasa2yr0kma5l1nafw70qdnp0glw-user-generators31error: Cannot build '/nix/store/ak1gppf0a4h26fq8yphvracncr6qw12v-vm-test-run-spaces-nixos-apply-vm.drv'.32 Reason: builder failed with exit code 1.33 Output paths:34 /nix/store/chr5kdb1gl6xhmifz5nm0ndcnidp10k7-vm-test-run-spaces-nixos-apply-vm35 Last 25 log lines:36 > machine # [ 60.038624] systemd[690]: Starting Apply the NixOS configuration to a declared target...37 > machine # FAIL: the mid-run digest does not carry 'probe starting':38 > machine # state=running39 > machine # op=apply40 > machine # target=dotfiles/probe41 > machine # elapsed=1s42 > machine # quiet=0s43 > machine # added=0 log lines during this 0s wait44 > machine # 45 > machine # last:46 > machine # (empty)47 > machine # [ 60.411234] su[979]: pam_unix(su:session): session closed for user alice48 > machine: output:49 > !!! Traceback (most recent call last):50 > !!! File "<string>", line 8, in <module>51 > !!! out = machine.succeed(52 > !!! 53 > !!! RequestedAssertionFailed: command `su alice -c 'export XDG_RUNTIME_DIR=/run/user/1000 HOME=/home/alice PATH=/run/current-system/sw/bin:/run/wrappers/bin; /nix/store/d64q19q1xjdwfhqx6czvrjgrhq0n3lcc-python3-3.14.7/bin/python3 /nix/store/lys380kam7z8a5hrv2vad7mqbyyz3vp2-actor.py /nix/store/gvgrz4bh8hryjzrvkqjiwyh4acpn27aj-quickshell-0.3.1/bin/quickshell /nix/store/di9n1mhik9z0swygffjpx4hxzv1qxiba-spaces-integration-confirm-qml /home/alice/work /nix/store/jf1cja979pnf65bnc0j4yavh1db5kxra-nixos-apply-probe'` failed (exit code 1)54 > cleanup55 > kill QemuMachine (pid 45)56 > machine # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/d64q19q1xjdwfhqx6czvrjgrhq0n3lcc-python3-3.14.7/bin/python3.14)57 > machine # [2026-09-17T04:34:24Z INFO virtiofsd] Client disconnected, shutting down58 > machine # [2026-09-17T04:34:24Z INFO virtiofsd] Client disconnected, shutting down59 > machine # [2026-09-17T04:34:24Z INFO virtiofsd] Client disconnected, shutting down60 > (finished: cleanup, in 0.62 seconds)61 For full logs, run:62 nix log /nix/store/ak1gppf0a4h26fq8yphvracncr6qw12v-vm-test-run-spaces-nixos-apply-vm.drv