Error code E0449

A visibility qualifier was used when it was unnecessary.

Erroneous code examples:

#![allow(unused)]
fn main() {
struct Bar;

trait Foo {
    fn foo();
}

pub impl Bar {} // error: unnecessary visibility qualifier

pub impl Foo for Bar { // error: unnecessary visibility qualifier
    pub fn foo() {} // error: unnecessary visibility qualifier
}
}
ⓘ

To fix this error, please remove the visibility qualifier when it is not required. Example:

#![allow(unused)]
fn main() {
struct Bar;

trait Foo {
    fn foo();
}

// Directly implemented methods share the visibility of the type itself,
// so `pub` is unnecessary here
impl Bar {}

// Trait methods share the visibility of the trait, so `pub` is
// unnecessary in either case
impl Foo for Bar {
    fn foo() {}
}
}