error: the lint `MISSING_LINT` is not added to any `LintPass`
  --> lint_pass.rs:12:1
   |
12 | declare_lint! { MISSING_LINT, Warn, "missing lint" }
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `-D lint-without-lint-pass` implied by `-D warnings`

error: aborting due to previous error(s)


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