config validation fails if server.settings option is a table

[darkseid-is]

Neovim version (nvim -v)

v0.10.0-dev-1046+g3afbf4745

Operating system/version

Debian

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 0.3.1705-standalone
- OK Cargo: found cargo 1.73.0 (9c4383fb5 2023-08-26)
- OK rustc: found rustc 1.73.0 (cc66ad468 2023-10-03)
- OK debug adapter: found codelldb 

Checking config ~
- OK vim.g.rustaceanvim is set
- ERROR Invalid config: server.settings: expected function, got table

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

How to reproduce the issue

Open any rust file with latest version of plugin.

Expected behaviour

No errors.

Actual behaviour

Error detected while processing BufNewFile Autocommands for "*":
Error executing lua callback: /usr/local/share/nvim/runtime/filetype.lua:30: Error executing lua: /usr/local/share/nvim/runtime/filetype.lua:31: BufNewFile Autocommands for "*"..FileType
Autocommands for "rust"..FileType Autocommands for "*"..function <SNR>1_LoadFTPlugin[20]..script /home/user/.local/share/nvim/lazy/rustaceanvim/ftplugin/rust.lua: Vim(runtime):rustace
anvim: Invalid config: server.settings: expected function, got table
stack traceback:
        [C]: in function 'nvim_cmd'
        /usr/local/share/nvim/runtime/filetype.lua:31: in function </usr/local/share/nvim/runtime/filetype.lua:30>
        [C]: in function 'nvim_buf_call'
        /usr/local/share/nvim/runtime/filetype.lua:30: in function </usr/local/share/nvim/runtime/filetype.lua:10>
stack traceback:
        [C]: in function 'nvim_buf_call'
        /usr/local/share/nvim/runtime/filetype.lua:30: in function </usr/local/share/nvim/runtime/filetype.lua:10>

The minimal config used to reproduce this issue.

vim.g.rustaceanvim = {
        server = {
                settings = {
                        ['rust-analyzer'] = {
                                cargo = { allFeatures = true },
                                checkOnSave = true,
                                check = {
                                        enable = true,
                                        command = "clippy",
                                        features = "all",
                                },
                                procMacro = {
                                        enable = true
                                }

                        },
                },
        },
}

[mrcjkb]

Thanks for the detailed report!

[darkseid-is]

Thanks for the quick fix.