these 15 derivations will be built:
  /nix/store/cfkinkr86jbna7d7xkl1k8j0swzryc3c-system-generators.drv
  /nix/store/d18h633gy992230czbvrspl8r5p9fd8f-user-generators.drv
  /nix/store/i65blsmsc5qvrk9ha49gsspsap0iq9q9-user-units.drv
  /nix/store/ix468b37a6q5a8s5acwi04b0d9ka3q6x-unit-concurrent-client-.service.drv
  /nix/store/kmiqz7hpvnn9ndnq94153fl4ywjm5sjn-system-units.drv
  /nix/store/xw0wd4srv9ikmr2z6n7smh2wn42ral6h-system-shutdown.drv
  /nix/store/rvmhv6i6mv6fyk34vha9dd0yvs7r7mxx-etc.drv
  /nix/store/ca2wn03ngd8pm70gcr05lmzby2a9gsgl-activate.drv
  /nix/store/1nqd2gcsdx1vi0369fmm141xvbc4ddg7-nixos-system-machine-test.drv
  /nix/store/dprnx04zs6z0g5casp437ldvs4lfyaba-closure-info.drv
  /nix/store/pqbb89mlmw41gxngwzghk0im9dh8scaf-run-nixos-vm.drv
  /nix/store/b9d8mbblv4adzkni14kwq6g5wwm1qfm6-nixos-vm.drv
  /nix/store/vl4mqkzv4pl1ahq1i05yzyn4x8w63a2x-driverConfiguration.json.drv
  /nix/store/zk584gbfjwa87r979g184zshxyjdv648-nixos-test-driver-systemd-confinement.drv
  /nix/store/cqffxic3yrfiqzgs4052qnxxndmdd6bs-vm-test-run-systemd-confinement.drv
these 3 paths will be fetched (1.6 MiB download, 5.1 MiB unpacked):
  /nix/store/r1f0gavmvkwf6hpm071g2124s08gwiv9-concurrent-client--chroot-paths
  /nix/store/dnwj9pnqg3hk4gjzl2fn622npwzrixlq-fortune-mod-3.26.0
  /nix/store/0f4aynfi8wcxv41mf3vbhhwaw63i3654-recode-3.7.16
Failed to find a machine for remote build!
derivation: cqffxic3yrfiqzgs4052qnxxndmdd6bs-vm-test-run-systemd-confinement.drv
required (system, features): (aarch64-linux, [kvm, nixos-test])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])
error: Cannot build '/nix/store/cqffxic3yrfiqzgs4052qnxxndmdd6bs-vm-test-run-systemd-confinement.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/zhwibcxgdsrdz16qi29aljgg3ripq565-vm-test-run-systemd-confinement
       Last 25 log lines:
       > machine # [   98.836156] h9w6ky85x5zxjfwnfzwpjk515bszby8n-concurrent-runner[754]: 2. Some other expensive computation could be running during input generation. For example, if @st.composite or st.data() is interspersed with an expensive computation, HealthCheck.too_slow is likely to trigger. If this computation is unrelated to input generation, move it elsewhere. Otherwise, try making it more efficient, or disable this health check if that is not possible.
       > machine # [   98.844117] h9w6ky85x5zxjfwnfzwpjk515bszby8n-concurrent-runner[754]: If you expect input generation to take this long, you can disable this health check with @settings(suppress_health_check=[HealthCheck.too_slow]). See https://hypothesis.readthedocs.io/en/latest/reference/api.html#hypothesis.HealthCheck for details.
       > machine # [   98.892801] systemd[1]: concurrent-driver.service: Main process exited, code=exited, status=1/FAILURE
       > machine # [   98.896115] systemd[1]: concurrent-driver.service: Failed with result 'exit-code'.
       > machine # [   98.897575] systemd[1]: Failed to start Driver for orchestrating concurrent processes.
       > machine # [   98.898907] systemd[1]: Dependency failed for Multi-User System.
       > machine # [   98.900230] systemd[1]: multi-user.target: Job multi-user.target/start failed with result 'dependency'.
       > machine # [   98.909143] systemd[1]: Startup finished in 1.059s (kernel) + 4.224s (initrd) + 1min 33.624s (userspace) = 1min 38.908s.
       > machine # [   98.910921] systemd[1]: concurrent-driver.service: Consumed 3.502s CPU time over 1min 20.976s wall clock time, 48.3M memory peak, 472K written to disk, 801B incoming IP traffic, 807B outgoing IP traffic.
       > !!! Traceback (most recent call last):
       > !!!   File "<string>", line 1, in <module>
       > !!!     machine.wait_for_unit("multi-user.target")
       > !!! 
       > !!! RequestedAssertionFailed: unit "multi-user.target" is inactive and there are no pending jobs
       > cleanup
       > kill QemuMachine (pid 45)
       > machine # qemu-system-aarch64: terminating on signal 15 from pid 39 (/nix/store/3fl7bdkdxk2k4nssy1d1161isbzn6bsr-python3-3.14.7/bin/python3.14)
       > machine # [2026-09-28T03:11:06Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-09-28T03:11:06Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-09-28T03:11:06Z INFO  virtiofsd] Client disconnected, shutting down
       > (finished: cleanup, in 0.33 seconds)
       > additionally exposed symbols:
       >     machine,
       >     vlan1,
       >     start_all, test_script, machines, machines_qemu, machines_nspawn, vlans, driver, log, os, create_machine, subtest, run_tests, join_all, retry, serial_stdout_off, serial_stdout_on, polling_condition, BaseMachine, QemuMachine, NspawnMachine, t, debug, dump_machine_ssh
       For full logs, run:
         nix log /nix/store/cqffxic3yrfiqzgs4052qnxxndmdd6bs-vm-test-run-systemd-confinement.drv