Error code E0771

Note: this error code is no longer emitted by the compiler

A non-'static lifetime was used in a const generic. This is currently not allowed.

Erroneous code example:

#![allow(unused)] #![feature(adt_const_params, unsized_const_params)] fn main() { fn function_with_str<'a, const STRING: &'a str>() {} // error! }

To fix this issue, the lifetime in the const generic need to be changed to 'static:

#![allow(unused)] #![feature(adt_const_params, unsized_const_params)] fn main() { fn function_with_str<const STRING: &'static str>() {} // ok! }

For more information, see GitHub issue #74052.