I'm using the rust-analyzer v0.2.368 with VSCode, and everything is working well. However, I've started getting "Extension host terminated unexpectedly" every several minutes. It's easy enough to restart it, but some features aren't available or are very slow while it's indexing.
Hard to say what's wrong! Is there any useful info after doing troubleshooting steps? User Manual
Of course, the problem hasn't occurred since I posted this topic.
I've set up trace.server=verbose and trace.extension=true in my VSCode settings. I have rust-analyzer version: 2020-11-02 (86d3b78). Status shows
workspaces:
247 packages loaded
analysis:
4471 (56mb) files
0 (0b) index symbols
3144 trees, 128 retained
54182 trees, 130 retained (macros)
0b total
requests:
6988 rust-analyzer/inlayHints 52ms
6989 rust-analyzer/inlayHints 26ms
6990 rust-analyzer/inlayHints 25ms
*6981 textDocument/codeAction 7ms
6982 textDocument/hover 0ms
6983 textDocument/documentHighlight 1ms
6984 textDocument/codeAction 8ms
6985 textDocument/hover 1ms
6986 textDocument/codeAction 5ms
6987 textDocument/codeAction 6ms
The output for Rust Analyzer Client is big. Is there anything in particular I should look for?
I just got the error. The last few entries on the console on the developer tools are
ERR Unexpected end of JSON input: SyntaxError: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at SymbolInformationParser.parseJson (/Users/alan/.vscode/extensions/kalitaalexey.vscode-rust-0.4.2/out/src/components/symbol_provision/symbol_information_parser.js:20:34)
at /Users/alan/.vscode/extensions/kalitaalexey.vscode-rust-0.4.2/out/src/components/symbol_provision/symbol_search_manager.js:28:66
at ChildProcess.exithandler (child_process.js:311:5)
at ChildProcess.emit (events.js:223:5)
at maybeClose (internal/child_process.js:1021:16)
at Socket.<anonymous> (internal/child_process.js:430:11)
at Socket.emit (events.js:223:5)
at Pipe.<anonymous> (net.js:664:12)
log.ts:197 ERR Unexpected end of JSON input: SyntaxError: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at SymbolInformationParser.parseJson (/Users/alan/.vscode/extensions/kalitaalexey.vscode-rust-0.4.2/out/src/components/symbol_provision/symbol_information_parser.js:20:34)
at /Users/alan/.vscode/extensions/kalitaalexey.vscode-rust-0.4.2/out/src/components/symbol_provision/symbol_search_manager.js:28:66
at ChildProcess.exithandler (child_process.js:311:5)
at ChildProcess.emit (events.js:223:5)
at maybeClose (internal/child_process.js:1021:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:283:5)
abstractExtensionService.ts:467 Extension host terminated unexpectedly. Code: null Signal: SIGPIPE
_onExtensionHostCrashed @ abstractExtensionService.ts:438
log.ts:197 ERR Extension host terminated unexpectedly. The following extensions were running: vscode.microsoft-authentication, vscode.configuration-editing, vscode.extension-editing, vscode.json-language-features, ms-vscode.js-debug, vscode.npm, nickdemayo.vscode-json-editor, vscode.debug-auto-launch, vscode.emmet, vscode.git, vscode.merge-conflict, vscode.search-result, hiro-sun.vscode-emacs, vadimcn.vscode-lldb, matklad.rust-analyzer, vscode.github-authentication, ms-vscode-remote.remote-containers, vscode.github, vscode.typescript-language-features, vscode.grunt, vscode.gulp, vscode.jake, vscode.docker, vscode.yaml, ms-azuretools.vscode-docker, kalitaalexey.vscode-rust, vscode.debug-server-ready
notificationsAlerts.ts:40 Extension host terminated unexpectedly.
onDidChangeNotification @ breadcrumbsModel.ts:39
notificationsAlerts.ts:40 Canceled
onDidChangeNotification @ breadcrumbsModel.ts:39
Edit: The box is only showing part of what I pasted. I can see it in the preview pane, but not on the page. Here's the last few records.
abstractExtensionService.ts:467 Extension host terminated unexpectedly. Code: null Signal: SIGPIPE
_onExtensionHostCrashed @ abstractExtensionService.ts:438
log.ts:197 ERR Extension host terminated unexpectedly. The following extensions were running: vscode.microsoft-authentication, vscode.configuration-editing, vscode.extension-editing, vscode.json-language-features, ms-vscode.js-debug, vscode.npm, nickdemayo.vscode-json-editor, vscode.debug-auto-launch, vscode.emmet, vscode.git, vscode.merge-conflict, vscode.search-result, hiro-sun.vscode-emacs, vadimcn.vscode-lldb, matklad.rust-analyzer, vscode.github-authentication, ms-vscode-remote.remote-containers, vscode.github, vscode.typescript-language-features, vscode.grunt, vscode.gulp, vscode.jake, vscode.docker, vscode.yaml, ms-azuretools.vscode-docker, kalitaalexey.vscode-rust, vscode.debug-server-ready
notificationsAlerts.ts:40 Extension host terminated unexpectedly.
onDidChangeNotification @ breadcrumbsModel.ts:39
notificationsAlerts.ts:40 Canceled
onDidChangeNotification @ breadcrumbsModel.ts:39
It just happened again. The console shows
I'm including a screen shot because cut/paste doesn't include the text in red.
@alanhkarp, can you create an issue against the rust-analyzer repo with the information you've posted here?
The rust analyzer started failing every few minutes. I closed the VSCode window for one of my projects (I have two projects open.) and reopened my project. The analyzer hasn't failed since (about an hour). Could the problem be a memory leak?
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