rust.el

(use-package lsp-mode
  :hook (
         (rust-mode . lsp-deferred)
         (lsp-mode . lps-enable-which-key-integration)
         )
  :commands lsp lsp-deferred lsp-mode lsp-workspace-folders-add
  :config
  (setq lsp-auto-guess-root nil
        lsp-keep-workspace-alive nil
        lsp-enable-file-watchers nil
        lsp-rust-server 'rust-analyzer)
)

(use-package lsp-ui
  :commands lsp-ui-mode
  :config
  (setq
   lsp-ui-sideline-show-code-actions nil
   lsp-ui-doc-enable t
   )
  (define-key lsp-ui-mode-map [remap xref-find-definitions] #'lsp-ui-peek-find-definitions)
  (define-key lsp-ui-mode-map [remap xref-find-references] #'lsp-ui-peek-find-references)
  )

(use-package helm-lsp
  :commands helm-lsp-workspace-symbol
  :config
  (define-key lsp-mode-map [remap xref-find-apropos] #'helm-lsp-workspace-symbol)
  )

(use-package company-lsp
  :commands company-lsp)

(use-package which-key
  :config (which-key-mode))