seeing the same task running more than once in parallel

[amonks]

this shouldn't be allowed to happen:

• I'm seeing multiple copies of generate running in parallel
• when generate finishes, it kicks off many other tasks that depend on it
• the multiple generates are conflicting with each other and putting their generated files in a weird state
• the tasks that depend on generate see those files in a weird state and fail

I don't remember the run_task.go code well enough to know how (or even whether) we intend to prevent this. I see that there is a main loop, which implies single-threadedness, which implies that I was at least thinking about this kind of problem when I wrote it. A bug, perhaps.

[amonks]

introduced in f48d16683ea6aca50f130daaaf19dbb42f3e3459

[amonks]

i see now that the sidebar lists a billion copies of generate, too