Is there something wrong with my install (binds not working) (E486: Pattern not found: lspcon)

[NickTTD]

Checked other resources

• This is not a bug report or feature request (Please use issues for those).
• This is a question about rustaceanvim, not rust-analyzer or Neovim.
• This is not a question about autocompletion.
• I have read the README.
• I have read the FAQ.
• I have searched for a solution using :h rustaceanvim.
• I have searched existing discussions.
• I have searched the existing issues/discussions of other plugins related to this question (if applicable).
• I have searched the existing rust-analyzer discussions (if applicable).
• I have added a very descriptive title to this question.

Description

I'm failing to install the plugin correctly, I'm not sure what's wrong and I've been trying for some hours now, here's the current structure of my lua and also the installed plugins on lazy, relevant to rustaceanvim are

rustvim.lua
after/ftplugin/rust.lua

code from rustvim.lua is below, and rust.lua is exactly the same as the example one from the Quick Start of the readme.

However, when I hover over a function and press n, I get the following error:

I tried searching about it but couldn't find anything useful, so, here I am.
(Also, I come from 2 hours of trying to get rust-tools to work, I didn't realize it was abandoned, so fatigue could very well be at play here)
Also, I thought rustacean does it's own lspconfig so this error is... weird?

Example Code

-- I declared both nvim-dap(I wanted to use the debugger afterwards) and rustaceanvim on rustvim.lua
return {
  {
    "mfussenegger/nvim-dap",
    lazy = false,
    config = function()
      local dap = require("dap")
      dap.defaults.fallback.terminal_win_cmd = "tabnew" -- optional
    end,
  },
  {
    'mrcjkb/rustaceanvim',
    version = '^6',
  }
}

Neovim version (nvim -v)

0.11.0

Operating system/version

Arch 6.14.1

Output of :checkhealth rustaceanvim

==============================================================================
rustaceanvim:                           require("rustaceanvim.health").check()

Checking for Lua dependencies ~
- OK [mfussenegger/nvim-dap](https://github.com/mfussenegger/nvim-dap) installed.

Checking external dependencies ~
- OK rust-analyzer: found rust-analyzer 1 (588948f267 2025-04-06)
- OK Cargo: found cargo 1.86.0 (adf9b6ad1 2025-02-28)
- OK rustc: found rustc 1.86.0 (05f9846f8 2025-03-31)
- OK debug adapter: found codelldb 

Checking config ~
- OK No errors found in config.

Checking for conflicting plugins ~
- OK No conflicting plugins detected.

Checking for tree-sitter parser ~
- WARNING No tree-sitter parser for Rust detected. Required by 'Rustc unpretty' command.

[mrcjkb]

Hey : 👋
It looks like something is preventing rust-analyzer from starting. You can check if it is running with :checkhealth lsp.

You can also try starting it manually with :RustAnalyzer start.