RLS is causing a memory leak on Linux atom/vscode native file watcher

[alexheretic]

RLS target data generation causes memory leak in nsfw file watchers on Linux.

This issue will affect Linux Atom & probably Vscode users too as they both make use of the nsfw native file watching project. It causes ide memory to leak, and in some cases will consume all system memory.

This can be reproduced by simply running Atom along with rls --cli in a terminal, particularly with the 1.35 release. Interestingly the leak does not occur by simply running/re-running cargo directly, but running rls --cli it can be quickly observed.

Investigation done in: rust-lang/atom-ide-rust#104
Related: atom/nsfw#7, Axosoft/nsfw#72

[Denommus]

Also happening to me on Emacs.

[alexheretic]

To be clear this issue isn't rls itself leaking, though rls does have its own memory issues.

[youssefhabri]

I have experienced this on both neovim & vscode. And this was happening on a project with only 2 files.

[alexheretic]

The upstream file-watcher has fixed a Linux string allocation leak and this seems to address the memory issues with rls usage. I'll close this now, more general rls memory issues on linux are covered by #1188