So everything is mostly stuck on database operations, and I suspect the database is stuck on this:
goroutine 35 [syscall]:
syscall.Syscall(0x4a, 0x12, 0x0, 0x0, 0x4a6f22, 0xc423913228, 0xc423913230)
syscall.Fsync(0x12, 0xd49338, 0xc424280000)
internal/poll.(*FD).Fsync(0xc424280000, 0x0, 0x0)
It doesn’t say that it was stuck on fsync for a long time, so perhaps the fsync is returning fine, but perhaps the database is in a bad state where it must do a lot of compaction, and the compaction is taking a while, triggering the deadlock timeout. Is the database on some network share or something like that? If it’s not a lot of data you have there, perhaps you can try resetting the database.
The fact you are getting deadlock timeouts is just a side effect of running a development build. I am on the phone and can’t check if there is a way to disable it.