warning: variable does not need to be mutable
  --> $DIR/expect_nested_lint_levels.rs:35:13
   |
LL |         let mut v = 0;
   |             ----^
   |             |
   |             help: remove this `mut`
   |
   = note: this overrides the previous `expect` lint level and warns about the `unused_mut` lint here
note: the lint level is defined here
  --> $DIR/expect_nested_lint_levels.rs:30:9
   |
LL |         unused_mut,
   |         ^^^^^^^^^^

error: unused variable: `this_is_my_function`
  --> $DIR/expect_nested_lint_levels.rs:47:9
   |
LL |     let this_is_my_function = 3;
   |         ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_this_is_my_function`
   |
note: the lint level is defined here
  --> $DIR/expect_nested_lint_levels.rs:44:10
   |
LL | #[forbid(unused_variables)]
   |          ^^^^^^^^^^^^^^^^

warning: this lint expectation is unfulfilled
  --> $DIR/expect_nested_lint_levels.rs:6:5
   |
LL |     unused_mut,
   |     ^^^^^^^^^^
   |
   = note: this `expect` is overridden by a `allow` attribute before the `unused_mut` lint is triggered
   = note: `#[warn(unfulfilled_lint_expectations)]` on by default

warning: this lint expectation is unfulfilled
  --> $DIR/expect_nested_lint_levels.rs:23:5
   |
LL |     unused_mut,
   |     ^^^^^^^^^^
   |
   = note: this `expect` is overridden by a `warn` attribute before the `unused_mut` lint is triggered

warning: this lint expectation is unfulfilled
  --> $DIR/expect_nested_lint_levels.rs:42:10
   |
LL | #[expect(unused_variables)]
   |          ^^^^^^^^^^^^^^^^

error: aborting due to 1 previous error; 4 warnings emitted