Helix shows language server exitd

[xpeng2333]

Summary

When I open a rust file with Helix, it shows language server exitd, and the OS shows that there is a zombie process. When I close Helix, the zombie process disappears with it.

I executed the following command: ps -A -ostat,ppid,pid,cmd |grep -e '^[Zz]', and result is:
Z+ 4758 4777 [rust-analyzer]

hx --health rust returns:
Configured language server: rust-analyzer
Binary for language server: /home/rocthan/.cargo/bin/rust-analyzer
Configured debug adapter: lldb-vscode
Binary for debug adapter: 'lldb-vscode' not found in $PATH
Highlight queries: ✓
Textobject queries: ✓
Indent queries: ✓

Reproduction Steps

I tried this:

1. hx main.rs

I expected this to happen:
rust-analyzer works fine

Instead, this happened:
rust-analyzer exitd

Helix log

~/.cache/helix/helix.log

2023-07-08T01:29:10.465 helix_view::editor [ERROR] editor error: Register [@] empty
2023-07-08T01:29:12.522 helix_view::editor [ERROR] editor error: Register [@] empty
2023-07-08T01:30:14.991 helix_lsp::transport [ERROR] err <- "error: 'rust-analyzer' is not installed for the toolchain 'stable-x86_64-unknown-linux-gnu'\n"
2023-07-08T01:30:14.993 helix_lsp [ERROR] failed to initialize language server: server closed the stream
2023-07-08T01:30:14.993 helix_lsp::transport [ERROR] err: <- StreamClosed
2023-07-08T01:36:09.524 helix_lsp::transport [ERROR] err <- "error: 'rust-analyzer' is not installed for the toolchain 'stable-x86_64-unknown-linux-gnu'\n"
2023-07-08T01:36:09.524 helix_lsp [ERROR] failed to initialize language server: server closed the stream
2023-07-08T01:36:09.524 helix_lsp::transport [ERROR] err: <- StreamClosed
2023-07-08T01:37:39.230 helix_view::editor [ERROR] editor error: Register [@] empty
2023-07-08T01:37:40.271 helix_view::editor [ERROR] editor error: Register [@] empty
2023-07-08T01:37:40.563 helix_view::editor [ERROR] editor error: Register [@] empty
2023-07-08T01:37:40.778 helix_view::editor [ERROR] editor error: Register [@] empty
2023-07-08T01:38:10.176 helix_lsp::transport [ERROR] err <- "error: 'rust-analyzer' is not installed for the toolchain 'stable-x86_64-unknown-linux-gnu'\n"
2023-07-08T01:38:10.177 helix_lsp [ERROR] failed to initialize language server: server closed the stream
2023-07-08T01:38:10.177 helix_lsp::transport [ERROR] err: <- StreamClosed
2023-07-08T01:39:01.521 helix_lsp::transport [ERROR] err <- "error: 'rust-analyzer' is not installed for the toolchain 'stable-x86_64-unknown-linux-gnu'\n"
2023-07-08T01:39:01.521 helix_lsp [ERROR] failed to initialize language server: server closed the stream
2023-07-08T01:39:01.521 helix_lsp::transport [ERROR] err: <- StreamClosed
2023-07-08T01:41:24.094 helix_lsp::transport [ERROR] err <- "error: 'rust-analyzer' is not installed for the toolchain 'stable-x86_64-unknown-linux-gnu'\n"
2023-07-08T01:41:24.095 helix_lsp [ERROR] failed to initialize language server: server closed the stream
2023-07-08T01:41:24.095 helix_lsp::transport [ERROR] err: <- StreamClosed
2023-07-08T01:42:04.462 helix_view::editor [ERROR] Failed to initialize the LSP for `source.go` { cannot find binary path }
2023-07-08T01:44:16.020 helix_view::editor [ERROR] Failed to initialize the LSP for `source.go` { cannot find binary path }
2023-07-08T01:45:19.264 helix_view::editor [ERROR] Failed to initialize the LSP for `source.md` { cannot find binary path }
2023-07-08T01:45:48.095 helix_view::editor [ERROR] Failed to initialize the LSP for `source.go` { cannot find binary path }
2023-07-08T01:48:37.210 helix_view::editor [ERROR] Failed to initialize the LSP for `source.go` { cannot find binary path }
2023-07-08T11:06:18.678 helix_lsp::transport [ERROR] err <- "error: 'rust-analyzer' is not installed for the toolchain 'stable-x86_64-unknown-linux-gnu'\n"
2023-07-08T11:06:18.678 helix_lsp [ERROR] failed to initialize language server: server closed the stream
2023-07-08T11:06:18.678 helix_lsp::transport [ERROR] err: <- StreamClosed
2023-07-08T11:34:09.661 helix_view::editor [ERROR] editor error: no such command: 'hx'
2023-07-08T21:49:32.549 helix_lsp::transport [ERROR] err <- "error: 'rust-analyzer' is not installed for the toolchain 'stable-x86_64-unknown-linux-gnu'\n"
2023-07-08T21:49:32.550 helix_lsp [ERROR] failed to initialize language server: server closed the stream
2023-07-08T21:49:32.550 helix_lsp::transport [ERROR] err: <- StreamClosed

Platform

macOS / WSL2

Terminal Emulator

item2 3.4.19 / windows terminal 1.17.11461.0

Helix Version

helix 23.05 (7f5940b)

[gabydd]

Looks like you need to install rust-analyzer, rustup proxies the command even if it isn't installed. You probably just need to run:
rustup component add rust-analyzer

[xpeng2333]

Thanks for your reply, in fact I have installed rust-analyzer and it works in vscode. I guess the real reason may be related to the rust nightly version I installed.

[the-mikedavis]

The log shows

2023-07-08T01:30:14.991 helix_lsp::transport [ERROR] err <- "error: 'rust-analyzer' is not installed for the toolchain 'stable-x86_64-unknown-linux-gnu'\n"

meaning that when we execute whatever rust-analyzer is on $PATH, it prints that line to stderr and then exits. You should see the same thing by executing rust-analyzer in a shell. It looks like you just need the stable version of rust-analyzer added.

[Rhylan2333]

Your answer solved my problem🫰! Thanks. See also 🔎 How to install the default language servers.