RLS keeps exclusive file lock on custom-derive plugin, preventing builds

[Diggsey]

The description is somewhat of a guess, and I'm not sure how to reproduce it reliably.

I checked out the gl_generators crate and opened it in VSCode, causing RLS to start compiling it. I then ran cargo build in a console in the same directory. The build failed because link.exe was unable to open target\debug\deps\serde_derive-aa8d0da7f64aa69e.dll.

Despite the RLS having finished (showed as doing nothing in VSCode) when I tried to manually delete the file in explorer it said it could not delete the file because it was in use by the RLS. This was the reason why the build was unable to complete.

[Xanewok]

@Diggsey this was hopefully fixed in today's (or yesterday's?) nightlies. Could you please try updating with rustup to newest nightly/RLS and see if the problem persists?

[nrc]

CLosing because it should be fixed, but comment if not and I'll reopen.