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# Error code E0648

An `export_name` attribute contains null characters (`\0`).

Erroneous code example:

    #![allow(unused)]
    fn main() {
    #[export_name="\0foo"] // error: `export_name` may not contain null characters
    pub fn bar() {}
    }

To fix this error, remove the null characters:

    #![allow(unused)]
    fn main() {
    #[export_name="foo"] // ok!
    pub fn bar() {}
    }