config function for rustaceanvim

lua/plugins/rustaceanvim.lua

@@ -1,4 +1,15 @@
 return {
   'mrcjkb/rustaceanvim',
   ft = { 'rust' },
+  config = function()
+    vim.g.rustaceanvim = {
+      server = {
+        on_attach = function(client, bufnr)
+          local options = { noremap = true, silent = false, buffer = bufnr }
+          vim.keymap.set('n', '<space>y', function() vim.cmd.RustLsp { 'hover', 'actions' } end,
+            vim.tbl_extend('error', options, { desc = 'Hover' }))
+        end
+      }
+    }
+  end
 }