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Test safe_trait_mismatch

Source location: tests/decl_safety.rs:138

#[test]
fn safe_trait_mismatch() {
    FormalityTest::new(crates![crate baguette {
        trait Foo {}
        unsafe impl Foo for u32 {}
    }])
    .rustc_err(expect_test::expect![[r#"
        error[E0199]: implementing the trait `Foo` is not unsafe
         --> lib.rs
          |
        3 | unsafe impl Foo for u32 {}
          | ^^^^^^^^^^^^^^^^^^^^^^^
          |
        help: remove `unsafe` from this trait implementation
          |
        3 - unsafe impl Foo for u32 {}
        3 + impl Foo for u32 {}
          |

        For more information about this error, try `rustc --explain E0199`.
        error: could not compile `baguette` (lib) due to 1 previous error
    "#]])
    .err(expect_test::expect![[r#"
            the rule "safety matches" at (impls.rs) failed because
              condition evaluated to false: `trait_decl.safety == trait_impl.safety`"#]])
}

Rules proved (0)

This test records no positive coverage.

Premises failed (5)

The last column links to the premise’s page when the judgment view counts this failure against that premise. It does not when the premise is read as infallible, or when the failure was blamed inside a multi-line premise that carries no record on its own first line.

JudgmentRulePremiseAll tests of this premise
check_trait_implcheck_trait_implcheck_safety_matches(&trait_decl, &trait_impl) =… (line 33)2 tests
check_safety_matchessafety matchesif trait_decl.safety == trait_impl.safety (line 84)2 tests
check_all_cratescheck all prefixesfor_all(i in 0..crates.len()) (let program = cra… (line 51, blamed at line 53)not counted by the judgment view
check_cratecheck cratefor_all(item in &c.items) (check_crate_item(prog… (line 72, blamed at line 73)not counted by the judgment view
check_crate_itemtrait implcheck_trait_impl(program, v, crate_id) => () (line 193)10 tests

Proof trees

Failed proof tree