this derivation will be built:
  /nix/store/41nf02wkv8kd96ci7j53a3xl7c0h403r-autopilot-herdr-prompt.drv
error: Cannot build '/nix/store/41nf02wkv8kd96ci7j53a3xl7c0h403r-autopilot-herdr-prompt.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/dq96fpv5rz9qkyghqy7z0vgwwp246is1-autopilot-herdr-prompt
       Last 25 log lines:
       >     |
       >     |                                ↑/↓ select · enter confirm · esc skip · ctrl+c exit setup
       > --- stub saw ---
       > --- herdr server log ---
       >   2026-09-16T14:04:13.873266Z  INFO herdr::logging: api request completed event="api.request.complete" subsystem="api" outcome="ok" request_id="cli:agent:prompt" method="agent.prompt"
       >   2026-09-16T14:04:17.563375Z  WARN herdr::logging: update check failed event="update.check.complete" subsystem="update" outcome="error" err="failed to fetch update manifest"
       >   2026-09-16T14:04:18.569573Z  INFO herdr::logging: session saved event="persist.save" subsystem="persist" outcome="ok" path=/build/home/.config/herdr/sessions/t/session.json workspaces=1
       >   2026-09-16T14:04:38.950814Z  INFO herdr::logging: api request received event="api.request.start" subsystem="api" outcome="started" request_id="cli:workspace:create" method="workspace.create" changes_ui=true
       >   2026-09-16T14:04:38.950983Z  INFO herdr::logging: spawning pane terminal event="pane.spawn.start" subsystem="pane" outcome="started" pane_id=2 rows=40 cols=120 scrollback_limit_bytes=10000000
       >   2026-09-16T14:04:38.952228Z  INFO herdr::logging: pane child spawned event="pane.spawned" subsystem="pane" outcome="ok" pane_id=2 pid=310
       >   2026-09-16T14:04:38.952394Z  INFO herdr::logging: workspace created event="workspace.create" subsystem="workspace" outcome="ok" workspace_id="w2" pane_id=2
       >   2026-09-16T14:04:38.952408Z  INFO herdr::logging: workspace renamed event="workspace.rename" subsystem="workspace" outcome="ok" workspace_id="w2"
       >   2026-09-16T14:04:38.952684Z  INFO herdr::logging: api request completed event="api.request.complete" subsystem="api" outcome="ok" request_id="cli:workspace:create" method="workspace.create"
       >   2026-09-16T14:04:38.955304Z  INFO herdr::logging: api request received event="api.request.start" subsystem="api" outcome="started" request_id="cli:pane:split" method="pane.split" changes_ui=true
       >   2026-09-16T14:04:38.955381Z  INFO herdr::logging: spawning pane terminal event="pane.spawn.start" subsystem="pane" outcome="started" pane_id=3 rows=40 cols=120 scrollback_limit_bytes=10000000
       >   2026-09-16T14:04:38.956546Z  INFO herdr::logging: pane child spawned event="pane.spawned" subsystem="pane" outcome="ok" pane_id=3 pid=318
       >   2026-09-16T14:04:38.956942Z  INFO herdr::logging: api request completed event="api.request.complete" subsystem="api" outcome="ok" request_id="cli:pane:split" method="pane.split"
       >   2026-09-16T14:04:38.960578Z  INFO herdr::logging: api request received event="api.request.start" subsystem="api" outcome="started" request_id="cli:agent:start" method="agent.start" changes_ui=true
       >   2026-09-16T14:04:38.960769Z  INFO herdr::logging: api request completed event="api.request.complete" subsystem="api" outcome="ok" request_id="cli:agent:start" method="agent.start"
       >   2026-09-16T14:04:39.509382Z  INFO herdr::pane: agent changed pane=3 previous_agent=None agent=Some(Omp) process=omp pgid=Some(328)
       >   2026-09-16T14:04:40.370866Z  INFO herdr::pane: agent changed pane=3 previous_agent=None agent=Some(Omp) process=omp pgid=Some(328)
       >   2026-09-16T14:04:41.977646Z  INFO herdr::logging: api request received event="api.request.start" subsystem="api" outcome="started" request_id="cli:agent:prompt" method="agent.prompt" changes_ui=true
       >   2026-09-16T14:04:42.279474Z  INFO herdr::logging: api request completed event="api.request.complete" subsystem="api" outcome="ok" request_id="cli:agent:prompt" method="agent.prompt"
       >   2026-09-16T14:04:46.974207Z  INFO herdr::logging: session saved event="persist.save" subsystem="persist" outcome="ok" path=/build/home/.config/herdr/sessions/t/session.json workspaces=2
       > 1 check(s) failed
       For full logs, run:
         nix log /nix/store/41nf02wkv8kd96ci7j53a3xl7c0h403r-autopilot-herdr-prompt.drv