Mappings don't get applied for rust_analyzer

[itmecho]

First off thanks for the great plugin! It really simplifies the LSP experience for neovim.

I'm having an issue where my mappings aren't getting set when rust_analyzer attaches to a buffer. They work fine for all the other language servers I have configured.

This is my config for lsp-setup:

require('lsp-setup').setup({
  default_mappings = false,
  mappings = {
    gd = 'Telescope lsp_definitions',
    gD = 'lua vim.lsp.buf.declaration()',
    gT = 'Telescope lsp_type_definitions',
    gr = 'Telescope lsp_references',
    gI = 'Telescope lsp_implementations',
    gR = 'lua vim.lsp.buf.rename()',
    ga = 'lua vim.lsp.buf.code_action()',
    gs = 'Telescope lsp_document_symbols',
    gS = 'Telescope lsp_dynamic_workspace_symbols',
    gx = 'LspRestart',
    go = 'SymbolsOutline',
    K = 'lua vim.lsp.buf.hover()',
  },
  on_attach = function(client)
    if client.name ~= 'null-ls' then
      client.server_capabilities.documentFormattingProvider = false
    end
  end,
  servers = {
    astro = {},
    emmet_ls = {},
    gopls = {
      flags = {
        debounce_text_changes = 300,
      },
    },
    rust_analyzer = {
      settings = {
        ['rust-analyzer'] = {
          cargo = {
            buildScripts = {
              enable = true,
            },
          },
        },
      },
    },
    sumneko_lua = {
      settings = {
        Lua = {
          runtime = {
            version = 'LuaJIT',
          },
          diagnostics = {
            globals = { 'vim', 's', 't', 'i', 'c', 'fmt', 'fmta' },
          },
          workspace = {
            library = vim.api.nvim_get_runtime_file('', true),
          },
        },
      },
    },
    tsserver = {
      flags = {
        debounce_text_changes = 300,
      },
    },
  },
})

LspInfo shows that rust_analyzer has successfully attached to the buffer:

 Language client log: ~/.local/state/nvim/lsp.log
 Detected filetype:   rust
 
 2 client(s) attached to this buffer: 
 
 Client: rust_analyzer (id: 1, pid: nil, bufnr: [1, 36, 18])
 	filetypes:       rust
 	autostart:       true
 	root directory:  ~/src/gallery
 	cmd:             rust-analyzer
 
 Client: null-ls (id: 2, pid: 5001, bufnr: [1, 47, 18, 36])
 	filetypes:       python, go, css, astro, rust, lua, luau, tf, terraform
 	autostart:       false
 	root directory:  ~/src/gallery
 	cmd:             <function>

Calling the functions manually works fine too:

[junnplus]

I seem to have missed this issue. I'm sorry I can't reproduce it, is this problem still present now?