Spurious warning: cannot raise 'AssertionDefect' [XCannotRaiseY]

[mratsim]

See: https://forum.nim-lang.org/t/9774

nim-taskpools/taskpools/channels_spsc_single.nim

Line 34 in 89d693d

{.push raises: [AssertionDefect].} # Ensure no exceptions can happen

The precondition can in fact raise AssertionDefect https://github.com/status-im/nim-taskpools/blob/89d693d/taskpools/instrumentation/contracts.nim#L91 unless when code is compiled without assertions (danger for example).

An easy fix would be to push that hint off