@coolreader18 if you could take a look at that Fix needless_late_init Clippy warning commit and see if it's a false positive, that'd be great, thanks!

Also, @qingshi163, you may want to check the Fix let_underscore_lock Clippy error commit just to be safe.

LGTM, that's the same effect. Only thing I'd say is that drop is in the prelude, so you don't need the std::mem::

Re: the Fix let_underscore_lock Clippy error commit, I didn't know if the intention was to drop the lock immediately or to hang onto it until the end of the scope. (c.f. the documentation for that lint)