Debug on MutexGuard

[MOZGIII]

Please add Debug for MutexGuard.

[Amanieu]

It should already be there?

[MOZGIII]

What do you mean? Debug is not implemented according to the docs: https://docs.rs/lock_api/0.1.5/lock_api/struct.MutexGuard.html

I've just had to manually call .deref on the guard to print the value in the debug mode. It doesn't deref automatically as there're no method calls on the value when it's printed: print!("{:?}", my_locked_guard) is rejected by the compiler.

[Amanieu]

Ah my bad. It seems that Debug is available in master, but that version has not been published yet. We are waiting for #119 to land before publishing a new release.

[MOZGIII]

I see there's active work going on there, so that's ok. But if it slows down or is paused, please consider a new release without waiting on it. Thanks!