Rust error E0326: implemented const `BAR` has an incompatible type for trait

What rustc prints

error[E0326]: implemented const `BAR` has an incompatible type for trait
 --> main.rs:8:16
  |
8 |     const BAR: u32 = 5; // error, expected bool, found u32
  |                ^^^ expected `bool`, found `u32`
  |
note: type in trait
 --> main.rs:2:16
  |
2 |     const BAR: bool;
  |                ^^^^

Real output of rustc 1.99.0 compiling the official example below (2021 edition). Your names and line numbers will differ; the first line is the part to match.

trait Foo {
    const BAR: bool;
}

struct Bar;

impl Foo for Bar {
    const BAR: u32 = 5; // error, expected bool, found u32
}

Related errors

• E0308mismatched types
• E0277the trait bound is not satisfied
• E0599no method named X found in the current scope
• E0433failed to resolve
• E0324item `N` is an associated method, which doesn't match its trait `Foo`
• E0325item `N` is an associated type, which doesn't match its trait `Foo`
• E0328explicit impls for the `Unsize` trait are not permitted
• E0364`foo` is private, and cannot be re-exported

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