Version information:

Using current master 08bdb03a8736218dfb24d5ec18b3a0416dba7434 on Intel

Description:

When I run testground build ...,
then open the daemon's tasks list: http://localhost:8042/tasks

Build jobs are shown with a status FAILED (even if successful), and the daemon logs the following error:

Apr 22 10:08:05.615628  ERROR   error while decoding result     {"err": "'' expected a map, got 'slice'"}

Solution

Error is produced by this code:

Because we expect task.result to contain a Runner result:

This is not the case for build jobs, we store an artifact path: