Details
Minor Description
When we initialize the sandbox, we only catch Sandbox specific error types, meaning that if an unexpected error is raised, the executor just hangs until the timeout is exceeded, at which point the task goes lost.
We should instead broadly catch exceptions raised during sandbox initialization and quickly fail tasks.
Additionally, the DockerDirectorySandbox was not properly catching errors raised when creating/symlinking which led to the above problem in the event of a misconfiguration. In practice this issue shouldn't have occurred in normal usage, but it made development slow until I tracked down what was causing the tasks to just hang.