<!-- Troubleshooting guide: https://rust-analyzer.github.io/manual.html#troubleshooting Forum for questions: https://users.rust-lang.org/c/ide/14 Before submitting, please make sure that you're not running into one of these known issues: 1. on-the-fly diagnostics are mostly unimplemented (`cargo check` diagnostics will be shown when saving a file) 2. some settings are required for procedural macro and build script support (`rust-analyzer.cargo.loadOutDirsFromCheck`, `rust-analyzer.procMacro.enable`): #6448 3. some platform-specific imports are not resolved: #6038 Otherwise please try to provide information which will help us to fix the issue faster. Minimal reproducible examples with few dependencies are especially lovely <3. --> <img width="1187" alt="image" src="https://user-images.githubusercontent.com/16152305/113968137-15375a00-9865-11eb-9ddd-430f2185dfa0.png"> Restart doesn't help. I've to `killall && cargo build`. Otherwise I can't do any cargo operation.