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A lint check attribute was overruled by a `forbid` directive set as an
attribute on an enclosing scope, or on the command line with the `-F` option.
Example of erroneous code:
```compile_fail,E0453
#![forbid(non_snake_case)]
#[allow(non_snake_case)]
fn main() {
let MyNumber = 2; // error: allow(non_snake_case) overruled by outer
// forbid(non_snake_case)
}
```
The `forbid` lint setting, like `deny`, turns the corresponding compiler
warning into a hard error. Unlike `deny`, `forbid` prevents itself from being
overridden by inner attributes.
If you're sure you want to override the lint check, you can change `forbid` to
`deny` (or use `-D` instead of `-F` if the `forbid` setting was given as a
command-line option) to allow the inner lint check attribute:
```
#![deny(non_snake_case)]
#[allow(non_snake_case)]
fn main() {
let MyNumber = 2; // ok!
}
```
Otherwise, edit the code to pass the lint check, and remove the overruled
attribute:
```
#![forbid(non_snake_case)]
fn main() {
let my_number = 2;
}
```
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